Hydraulikanlage Schmidt Mit PS 5 Ausgabe 18_EN

8/10/2019 Hydraulikanlage Schmidt Mit PS 5 Ausgabe 18_EN

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Hydraulic system with PS 5 control panelOriginal operating manual

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Product group Vehicle equipment

Translation of the original

operating instructionsHydraulic systemswith PS 5 control panel (from 2010)

List No. 190670-0 Revision 18

Keep these operating instruct ions in a safe place. They must be handed over inthe event that the machine is transferred to a third party.

We reserve the right to make changes to the technical details included in thespecifications and diagrams in these operating instructions. Reproduction,translation and photocopying in whole or in part without writ ten permission areforbidden.

Because the scope of delivery is based on the order, the equipment of yourmachine can dif fer in many descriptions and graphic representations.

Our machines are continually under further development. Please understand that wemust retain the right to changes in shape, components and technology. Therefore,no binding agreements can be derived from the content of this description.

Aebi Schmidt Deutschland GmbHAlbtalstrae 36 D - 79837 St. Blasien

Telephone: +49 7672 412 0 Internet: www.aebi-schmidt.com

Fax: +49 7672 412 230 E-Mail: [email protected]


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CONTENTS

CONTENTS ..................................................................................................... 3

1 Preface ..................................................................................................... 7

2 Explanation of symbols and safety notices .......................................... 8

2.1 Explanation of symbols ......................................................................................... 8

2.2 Safety Regulations ................................................................................................ 9

3 Vehicle plate .......................................................................................... 11

3.1 Protective covering .............................................................................................. 12

4 Hydraulic system .................................................................................. 13

4.1 Single-circuit hydraulic system ............................................................................ 13

4.2 Dual-circuit hydraulic system ............................................................................... 13

4.3 Dual-circuit hydraulic system ............................................................................... 13

4.4

Load sensing system ........................................................................................... 14

4.5 Electro-hydraulic system ..................................................................................... 14

4.6 Hydraulic connections ......................................................................................... 154.6.1 Front connections ......................................................................................... 164.6.2 Connections behind the driver's cab ............................................................ 164.6.3 Connections between the axles ................................................................... 164.6.4 Connections at the rear ................................................................................ 16

5 Snow plough control ............................................................................ 17

5.1

Description .......................................................................................................... 17

5.2 Technical data ..................................................................................................... 185.2.1 Control panel model: PS 5 ........................................................................... 185.2.2 Couplings ..................................................................................................... 18

5.3 Vehicle hydraulic system ..................................................................................... 185.3.1 SCHMIDT Hydraulic valve block .................................................................. 185.3.2 Hydraulic oil supply ...................................................................................... 19

5.3.2.1 Mechanically driven pump ..................................................................... 19


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5.4 Electric hydraulic pump ....................................................................................... 195.4.1 Electric motor ............................................................................................... 195.4.2 Hydraulic pump ............................................................................................ 195.4.3 Operation ..................................................................................................... 19

5.5 Noise emission, vibration .................................................................................... 20

5.6 Intended usage ................................................................................................... 205.6.1 Vehicle hydraulic system .............................................................................. 205.6.2 Electro-hydraulic system .............................................................................. 20

5.7 Operating personnel ............................................................................................ 205.7.1 Clearing operation ........................................................................................ 205.7.2 Maintenance and repairs .............................................................................. 21

5.8 Personal protection ............................................................................................. 21

6

PS 5 control panel ................................................................................. 23

6.1 Operation, symbol description ............................................................................. 25

7 Control and drive .................................................................................. 32

7.1 Switching with the electrical hydraulic valve ........................................................ 32

7.2 Switch with ball cock behind the driver's cab ....................................................... 33

7.3 Technical data ..................................................................................................... 337.3.1 Electrical system .......................................................................................... 33

7.3.2

Hydraulics .................................................................................................... 33

8 Control, maintenance operations ........................................................ 34

8.1 Please note: Servicing and installation work ....................................................... 34

8.2 Special tools ........................................................................................................ 36

8.3 Lubricant recommendations ................................................................................ 36

8.4 Filling quantities................................................................................................... 36

8.5 Maintenance schedule ........................................................................................ 37

8.5.1

Vehicle hydraulic system .............................................................................. 37

8.5.2 Electro-hydraulics ......................................................................................... 39

9 Maintenance and repair work that may only be carried out byworkshop personnel ............................................................................. 40

9.1 Maintenance schedule ........................................................................................ 429.1.1 Vehicle hydraulic system .............................................................................. 429.1.2 Electro-hydraulics ......................................................................................... 45

9.2 Special tools for workshop personnel .................................................................. 46


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9.3 Maintenance work ............................................................................................... 469.3.1 Oil change .................................................................................................... 469.3.2 Vehicle hydraulics Changing the hydraulic oil and filter .............................. 47

9.3.2.1 Filter change ......................................................................................... 479.3.2.2

Changing hydraulic fluid ........................................................................ 48

9.3.3 Electro-hydraulics Changing the oil and cleaning the oil strainer ................ 499.3.3.1 Removing the oil ................................................................................... 499.3.3.2 Draining oil ............................................................................................ 499.3.3.3 Fill the hydraulic equipment with oil ...................................................... 499.3.3.4 Cleaning the oil strainer ........................................................................ 50

9.3.4 Pump drive ................................................................................................... 509.3.4.1 Pump drive via belts .............................................................................. 50

9.3.5 Changing hydraulic hoses ............................................................................ 51

10

PS 5 control panel adjustment .......................................................... 52

10.1 Adjusting the control panel to the machine .......................................................... 52

10.2 Setting the plough relief pressure ........................................................................ 58

10.3 Setting the oil volume for front hydraulic connections ......................................... 59

10.4 Setting the oil volume for hydraulic circuits 1 and 2............................................. 60

11 Malfunct ions ....................................................................................... 61

11.1 Setting the throttle-valve and the pressure control valve ..................................... 61

11.1.1

Electro-hydraulics ......................................................................................... 6111.1.2 Vehicle hydraulics with side wings ............................................................... 62

11.2 Fault in the magnetic coupling ............................................................................. 63

11.3 Fault display via the control panel ....................................................................... 6411.3.1 PS 5 control panel fault display. ................................................................... 64

11.3.1.1 Fault messages ..................................................................................... 6411.3.2 Additional fault display on the vehicle instrumentation panel. ...................... 65

11.4 Malfunctions and remedies ................................................................................. 66

12 Hydraulic system ............................................................................... 67

12.1 Hydraulic circuit diagram ..................................................................................... 6712.1.1 Hydraulic circuit diagram vehicle hydraulics ................................................. 6712.1.2 Hydraulic circuit diagram electrohydraulics .................................................. 68

12.2 Labels on hydraulic couplings on the vehicle ...................................................... 6912.2.1 Connection for front snow plough without extension blade ............................ 6912.2.2 Connection for front snow plough with extension blade ............................... 6912.2.3 Connection for side snow plough ................................................................. 69

12.3 Hydraulic circuit diagram, VKS / gritter switch ..................................................... 70

12.4

Hydraulic circuit diagram, gritter on/off ................................................................ 71


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13 Electr ical system ................................................................................ 72

13.1 Vehicle hydraulic system ..................................................................................... 72

13.2 Vehicle hydraulic system ..................................................................................... 73

14 Lighting ............................................................................................... 74

14.1 Side lamp connection .......................................................................................... 7414.1.1 Circuit diagram ............................................................................................. 74

14.2 Winter service lighting ......................................................................................... 7414.2.1 Lighting adjustment ...................................................................................... 7514.2.2 Circuit diagram ............................................................................................. 75

15 Manual actuation on the valve block ................................................ 76

16 Torque sett ings .................................................................................. 77

16.1 Hexagon bolts ..................................................................................................... 77

16.2 Special bolts ........................................................................................................ 78

17 Index .................................................................................................... 79


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1 Preface

Read these operating instructions thoroughly beforeputting the hydraulic system and vehicle plate intooperation. Any references to other documents thatare made in this operating manual automaticallyinclude those documents as part of thedescription/instructions. (e.g. for vehicle, tipper etc.).

These operating instructions contain all theimportant instructions for using and carrying outmaintenance on the hydraulic system and vehicleplate. If these instructions are adhered to, thehydraulic system and vehicle plate will be capableof completing their tasks satisfactorily and willhave a long service life.

Anyone working with the hydraulic system must fullyunderstand the hydraulic system functions and mustbe able to safely operate the machine. To ensurethis is the case, the operating instructions shouldalways be available with the vehicle.

The operating instructions belong with thehydraulic system and vehicle plate and shouldremain with them should they be transferred toa third party.The operating instructions must not be reprinted,translated or copied without written permission.

We reserve the right to make changes to thetechnical details included in the specifications anddiagrams in these operating instructions.

No claims can be made as a result of thesechanges. Special equipment can be described aslong as it requires an explanation.

Should you have any questions or problems withthe hydraulic system and vehicle plate, ourService Department will be pleased to assist youimmediately.


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2 Explanation of symbols andsafety notices

2.1 Explanation of symbols

The following symbols are used to indicateinformation that will make work easier, extend theservice life of the machine, improve theenvironment and prevent accidents.

TIP

Information that contributes to a general improve-

ment of work or machine output is marked withthis symbol.

NOTEThis symbol denotes information that helps toprevent damage to the machine.

ENVIRONMENTThis symbol denotes information that helps toimprove the environment.

CAUTIONThis symbol denotes information that could lead topersonal injury if it is not adhered to.

DANGERThis symbol denotes information that could lead toserious personal injury or possibly death if it is notadhered to.

LIFE-THREATENINGSITUATION

This symbol denotes information that could lead tocertain death if it is not adhered to.


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2.2 Safety Regulations


Inspection, maintenance and repair work is

only to be performed by suitably trainedpersonnel. The vehicle engine must be ata standstill and secured against anyunintentional starting (remove ignition key),the control panel must be switched off.At tachments must be lowered or secured withthe transport locks.Af ter complet ing maintenance and repair work,all protective equipment is to be put back inplace properly.


Inadequate insulation on the lines can lead tofunction faults on the attached machine(e.g. snow plough). A person can be severelyinjured or ki lled. Electrical control cables fromthe control panel to the hydraulic control b lockare to be checked regularly for damage andare to be replaced if necessary.

DANGER

Oil can get onto area where the public walk ordrive and cause accidents. The hydraulic

equipment, (hoses and pipelines, hydraulicpump, hydraulic block, hydraulic tank,hydraulic connections etc.) must be checkeddaily for damage (chafe marks, cracks,leakages, screw connections that have comeloose etc.) and to ensure that it i s fastenedtight before use and repaired if necessary.Defective parts are to be replaced.Hoses are to be replaced at least every 6 years.Note the manufacturer's date (month/year) onthe hose fixtures.

DANGERLow quality replacement parts could causeaccidents. Use only original parts or spareparts of the same quality.

CAUTION

Hot hydraulic oil (over 50C) or oi l that comesout under high pressure can burn or penetratethe skin. This can cause serious in juries.Al low the hydraulic oil to cool down beforeperforming repairs. Depressurise the hydraulic

lines to be opened and wear protective clothing.


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ENVIRONMENT

Never allow hydraulic oil to get into the soil onthe ground. Note environmental regulationsconcerning hydraulic oil. Dispose of drainedoil in accordance with regulations.

NOTE

Only machines/devices that are suitable foruse with the hydraulic system are to beconnected. When connecting the hydraulicconnections, make sure to pay attention to thedesignations on the fittings to avoid faultyfunctionality. The couplings and couplingsystems must match one another.A funct ionali ty test (test run) is to beperformed with the consideration of specialsafety precautions. Never allow persons to bein hazard areas. In this case, the area thatcould come into question if there were a faultis also cons idered a hazardous area.

NOTE

Pressure control valve settings are not to bechanged. Function can no longer be guaranteed.Corrections to the setting are only to be madeby trained technicians and with the approval ofSCHMIDT.

NOTEWhen in transit, switch the control panel off andsecure the attached machine mechanically.(Observe manufacturer's specifications).

DANGER

Plastics may contain hazardous materials(such as adhesives, solvents or hardeners).Prolonged contact with plastics may lead toskin irritations.Gloves must be worn for prolonged contactwith rubber or plastic parts, such asconnecting the hydraulic couplings, changingthe plastic cutting edges etc.

DANGER

Prior to commiss ioning the tipper theoperating instructions, in particular the safetyregulations from the tipper manufacturer, mustbe observed.


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3 Vehic le plateThe vehicle plate conforms to DIN 15432. It is

suitable for the attachment of front-mountedmachines. The height adjustment is designed inthe construction so that it complies with DINEN 15432 and is suitable for snow plough appli-cations. A correction to these settings may berequired, for example on the vehicle if changes tothe tyres, suspension, attachments, etc. aresubsequently made. In this case, any bolts takenout can be replaced by new bolts of the samespecifications. The bolts are to be tightened to thespecified torque (see 'Tightening torques' chapter).

DANGER

The fastening screws on the vehicle plate maybecome loose as a result of work being carriedout.The vehicle plate could fall onto the roadsurface with the attached machine and causean accident. After the first 20 hours of use withan attached machine (such as a snow plough),all screws are to be tightened with the correcttorque (see 'Tightening torques' chapter).They tightened again at each annual check.

NOTE

Screws that have become loose may beretightened twice at the most to the correcttorque setting or rotation angle (see 'Tighteningtorques' chapter). After this, the screws are to bereplaced with new ones with the same strength.

TIP

If the vehicle plate remains on the vehic le, thevehicle plate must be entered into the vehicle's

documentation.We also recommend placing a protectivecovering (see 'Protective covering' chapter) onthe vehicle.

A towing ring is provided in the vehicle plate forrecovery assistance. The towing ring should notbe used for parking.


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2

3

3.1 Protective covering

The protective covering (2) is attached at the front inthe vehicle plate (1) and fastened with two cylinder

screws (3).The protective covering consists of a water and dirt-resistant plastic and covers the existing outer edges.The consequences of a frontal impact accident cantherefore be minimized. Furthermore, the protectivecovering stops the vehicle plate getting dirty.

TIP

If the vehicle plate is on the HGV, we recommendinstalling the protective covering on the vehicle platewith the machine off in order to minimise theconsequences of accidents with frontal impact.


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4 Hydraulic system

TIPThe hydraulic systems (volume flow rates,pressure, output etc.) are designed accordingto DIN EN 15431.

4.1 Single-circui t hydraulic system

The hydraulic pump is driven by the vehicle

engine via a V-belt or an auxiliary drive. The valveblock and hydraulic tank are mounted in theengine compartment or in another free location inthe vehicle. The hydraulic system is designed forsnow plough control.

4.2 Dual-circuit hydraulic system

The dual-circuit hydraulic system is driven byV-belts or an auxiliary drive from the vehicle

engine. The valve block and hydraulic tank aremounted in the engine compartment or in anotherfree location in the vehicle. The hydraulic systemis designed for snow plough control and drivinga gritter (front-mounted device).

4.3 Dual-circuit hydraulic system

The three-circuit hydraulic system is driven by the

drive shaft of an engine auxiliary drive. The valveblock and hydraulic tank are mounted in theengine compartment or in another free location inthe vehicle.

The pump drive can be switched on and off viaa magnetic coupling (special equipment).The switch is located in the dashboard.

The hydraulic system designed is for controllinga front and side snow plough and for driving thegritter (frontal attachment).


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4.4 Load sensing system

The load sensing (LS) vehicle hydraulic system is

a hydraulic control system with volume adjustment tothe current requirements of one or more consumers.Consumers may be a snow plough, a gritter,frontal attachment machine, etc.

The oil feed in these LS systems is done bya variable displacement pump, which is driven viaa drive shaft and flexible coupling or electro-magnetic coupling or directly via the auxiliary driveof the vehicle engine. The variable displacementpump enables a desired feed volume to be used,even in a lower engine speed range.Advantages are in the decreased noise becauseof lower engine rpm and in the decreasedoperating cost through the fuel savings.

If no flow volume is requested for the system,(all directional valves in middle position) then onlythe load sensing line to the tank is relieved andthe pump switches to idle. The idling pressure isdefined on the proportional valve (generally

between 5 and 20 bar) to minimise power loss.

4.5 Electro-hydraulic system

The hydraulic pump is driven by an electric motor.The power is supplied via the vehicle battery.The hydraulic pump, hydraulic tank and electricmotor make up one unit, which is mounted on thedevice plate with the hydraulic valve block.The system is only suitable for short-term operation.

The hydraulic system is designed for snow ploughcontrol.

The release pressure for snow plough reliefcontrol is ensured by a time trigger-controlledhydraulic pump.


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4.6 Hydraulic connections

Possible attachment locations for hydraulic

connections on vehicle

1. Hydraulic connections front right and left2. Hydraulic connections behind the driver's

cab and between the axles3. Hydraulic connections at the rear:

DANGER

Mounting for the first time must be carried outby personnel with specialist knowledge andexperience of the vehicle and attached

machine (e.g. snow plough). If the machine isnot mounted correctly, it may cause seriousaccidents and injury which could even be fatal.The hydraulic connections between theattached machine (e.g. snow plough) and thevehicle must be marked so that it is notpossible to confuse the hydraulic connectionswhen mounting again.In order to prevent incorrect operation of themachine (e.g. snow plough) with the vehic lehydraulic system, the assignment of each

control valve on the vehicle to the movementsof the attached machine should bepermanently labelled.

DANGER

When connecting the hydraulic connections,pay attention to the designations on the fittingsto avoid malfunctions. People can, for example,be trapped between the machine (snow plough)and the vehicle. A functionality test (test run) isto be performed with the consideration ofspecial safety precautions. Never allow persons

to be in hazard areas. In this case, the area thatcould come into question if there were a fault isalso considered a hazardous area.

TIP

Only machines/devices that are suitable foruse with the hydraulic system, as well as thecouplings and coupling systems, are to beconnected.


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4.6.1 Front connections

For example, connecting a snow plough orsweeping machine

Connection 1: RaiseConnection 2: LowerConnection 3: Pivoting leftConnection 4: Pivoting rightConnection 5: Extension blade

Extend snow ploughConnection 6: Extension blade

Retract snow plough

Connection : Separate returnConnection : Pressure connection for

Sweeper drive

4.6.2 Connections behind the driver'scab

e.g. connecting a gritter

Connection : Pressure hose

Connection : Separate return

4.6.3 Connect ions between the axles

e.g. connecting a side snow plough

Connection 1: RaiseConnection 2: LowerConnection 3: Extend side snow ploughConnection 4: Retract side snow plough

4.6.4 Connections at the rear

e.g. connecting a mobile warning trailer

Connection : Pressure hose

Connection : Separate return


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5 Snow plough control

The following describes the control for snowplough application.

5.1 Description

The symbols for the snow plough control are onthe buttons on the control panel. The control panelis used in combination with an electrically actuatedhydraulic system. All snow plough movements inoperation and for the quick-change procedure

(attachment and detachment of the machines) canbe controlled. An adjustable plough relief allowssensitive adjustment of the snow plough pressureon the road surface. When attaching machines,ensure that the respective electrical and hydraulicparts are approved for the maximum hydraulicsystem values (pressure, voltage, current) andthat they are dimensioned sufficiently.The hydraulic system is only to be used for thepurpose intended by SCHMIDT. Any use otherthan that intended is not permitted.

The hydraulic system can be set via the controlpanel (see chapter "PS 5 control panel adjust-ments) so that the snow plough is raised when thereverse gear is engaged.The type plate with the respective information islocated in the enclosed area of the driver's door.


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5.2 Technical data

5.2.1 Control panel model: PS 5

Supply voltage: 12 volt and 24 volt (voltage independent)

Dimensions: (LXWXH) 125x 140x 40 mm

Inputs: 5 switch inputs for + switching signals1 sensor input for analogue values1 frequency input

Outputs: 10 digital switch outputs for on-board powerMax. current of 3 A each

2 of which can be used as proportional outputswith max. 2 A

Data interface: Serial interface according to RS232 standardCan be used for connecting two panels or fordownloading new software versions

Errol messages: Shown on display and warning signal

Fuse protection: All inputs are short-circuit protected to 30 VAll outputs are short-circuit protected andtemperature protected

5.2.2 Couplings

Connection couplings: Plug couplings or optionally pipeline couplings orquick release coupling

5.3 Vehicle hydraulic system

5.3.1 SCHMIDT Hydraul ic valve block

Supply voltage: 12 or 24 V

Pressure controlPrimary for snow plough:Secondary for pivoting cylinder:

150 barStandard 300 bar (depending on the snowplough e.g. for model SCHMIDT SNK the valuemust be reset)

Gritter and Sweeper: 200 bar

With plough relief, an additional pressure

proportional valve is required.


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5.3.2 Hydraulic oil supply

5.3.2.1 Mechanically driven pump

TIPThe hydraulic systems (volume flow rates,pressure, output etc.) are designed accordingto DIN EN 15431.

Single circuit: 10 litre tank volume

Dual-circuit: 40/55 litre tank volume

Three-circuit: 70/90 litre tank volume

Load sensing: 90/140/160 litre tank volume

5.4 Electr ic hydraulic pump

5.4.1 Electric motor

Voltage: 12 V or 24 VOutput: 2000 W

5.4.2 Hydraul ic pump

Delivery volumes: 1.9 ccm/RTank volume: 5 litres

5.4.3 Operation

NOTE

Electric motor can be damaged. The maximumadmissible continuous operation of the electric

hydraulic pump may not exceed 2 minutes.Continuous operation exceeding this timerequires the electric motor to be cooled downover an extended period.

Short-term operation 1:10 (Use to waiting time)


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5.5 Noise emission, vibration

Under normal circumstances/normal operation,

the hydraulic system does not cause any noiseemission or vibration that is above that of thevehicle or that changes that of the vehicle.

5.6 Intended usage

5.6.1 Vehic le hydraulic sys tem

As a winter service vehicle, the hydraulic systemcorresponds to standard DIN EN 15431. It is

designed for operating snow ploughs, gritters,etc. in accordance with the design of the vehiclehydraulics. Any other use of the hydraulic system,e.g. as the drive for a wood splitter, or any othersimilar hydraulically driven machines, is conside-red as improper use. SCHMIDT accepts no liabilityfor any damage resulting from improper use.The risk is borne solely by the operator.

5.6.2 Electro-hydraulic system

The hydraulic system is only suitable for short-term operation for controlling a snow plough or forlifting a tipper. Any other use of the hydraulicsystem, e.g. as the drive for a gritter, or any otherhydraulic machines, is considered as improperuse. SCHMIDT accepts no liability for any damageresulting from improper use. The risk is bornesolely by the operator.

5.7 Operating personnel

5.7.1 Clearing operation

Requirements for the operator of the hydraulicsystem.

Valid driving licence to drive the vehicle.

Training and instruction for the vehicle.

Training and instruction for the hydraulicsystem.

Learning to drive with the attachedmachine.


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Operating personnel who have been trained andinstructed may initially only use the hydraulicsystem and the attached machine under thesupervision of an experienced person. Once the

training period has been completed, this should beconfirmed in writing.

5.7.2 Maintenance and repairs

Maintenance and service operations may only beexecuted by personnel with the appropriatetraining who have been instructed and trained inhow to handle the device.

5.8 Personal protection

Hearing protectionWhen the device is running and the motor cabin isopen, hearing protection must be worn when closeto the vehicle. Hearing protection must be wornfrom 85 dB(A).

Gloves Prolonged contact with plastics may lead

to skin irritations. Plastics may containhazardous materials (such as adhesi-ves, solvents or hardeners).

Protect hands from the cold. Skin canfreeze onto cold objects.Sharp objects can injure hands.

Fluids (such as oils, coolant, batteryacid etc.) can injure hands.

Safety shoes

Reduce injuries to feet

Improve grip


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Reflective clothing, weather protection andprotective clothing

Reflective clothing improves visibilitywhen outside the vehicle.

Weather protective clothing shouldprotect against dangers to health whenworking in the open air.

Protective clothing improves protectionagainst damaging influences such asmaintenance work, cleaning themachine, etc.

Facial protectionFacial protection protects the eyes in particularfrom splashed dirt particles when cleaning thehydraulic system or vehicle with a pressurewasher.


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6 PS 5 control panel

TIP

If the control of the machine attached at thefront is not performed via the followingPS 5 control panel, the control is described inthe machine operating instructions (e.g. CJS,TJS etc.).

All position information in this chapter refers to thecontrol panel shown below.

Item Symbol Function

Symbolsaccording

to DIN30707-2

1 Control panel on/off

2The functions raise/lower and pivot apply only to the side snowplough. These are switched off for the front snow plough.

Switching the additional lighting on and switching betweenthe low beam and high beam. For switching off the additionallighting, the control panel must be switched off.

Two-handed operation for unlatching the hydrauliclatching system

Gritter on/off

OFF Switch on the automatic control


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Symbolsaccording

to DIN

30707-2

3 Ground pressure on (Raise implement plate)

4 Extend the extension blade

Raise snow eject lock on the snow plough

Unlatch latching system

Gritter on/off

5 Retracting the extension blade

Lower snow eject lock on the snow plough

Lock latching system

The extension blades left and right are preselected(e.g. for SCHMIDT snow plough model MF 11.3).

When engaging the reverse gear the snow plough is raised.

6

Standard setting

Brief actuation: Snow plough relief "ON"

Long actuation: Increase snow plough relief in stages(see display)

7

With standard setting

Brief actuation: Snow plough relief "ON"

Long actuation: Decrease snow plough relief in stages (see display)

8 Snow plough raises


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Symbolsaccording

to DIN

30707-2

9 Snow plough pivots to the right

10 Snow plough lowers into working position

11 Snow plough pivots to the left

12 Display

Operating mode display: floating position

Operating mode display: Snow plough relief

Operating mode display: Latching system unlocked

Operating mode display: Latching system locked

13 Bright-dark sensor for display

14 Control panel connection

6.1 Operation, symbol description

The system is only to be operated by trained andinstructed personnel. The hydraulic system must beinstalled and tested by a competent workshop.Ensure that the control panel is only supplied withpower when the ignition is switched on. The ploughmovements are controlled with the control panel.These movements in the area around the snow

plough can cause hazards. Therefore, ensure thatthere are no persons or objects within the range of


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The additional lighting on the snow plough isswitched on with the button. A subsequentactuation of the button then switches between

low beam and high beam. For switching off theadditional lighting, the control panel must beswitched off.

Switch hydraulic circuit for gritter drive on/off.

OFF

With an automatic control, the vehicle must be

equipped with an electro-hydraulic pressure switchfor the plough end-limit indication.To switch from manual to automatic operation,the button is to be pressed briefly, the switch isilluminated. The raise (button Pos. 8), pivot right(button Pos. 9) and pivot left (button Pos. 11)commands must only be activated with a briefactuation. The movement of the plough will thenrun automatically to the end position (maximum16 seconds). If the automatic control is switchedoff with button Pos. 2, yellow indicator light goes

out, manual operation is possible again.

Button Pos.3This button switches the float setting or the snowplough relief off and lowers the plough underpressure. The "Ground pressure" setting isnormally only required for:

Raising the implement plate for a quick-change procedure.

If pressing the snow plough onto theground is required.

Button Pos.4The button can be defined with the followingfunctions.

This button extends the extension blade on the

front plough.


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People may be crushed. This button can only bepressed when no-one is on the snow plough.By pressing the button the eject lock on the snow

plough is raised.

The button for unlatching the latching system isfor the side snow plough with hydraulic latchingsystem. This requires switching on the controlpanel. Unlatching is possible within 30 seconds.Press both buttons Pos.2 and Pos.4 two-handoperation at the same time until the "Unlocked"symbol appears on the display.

Button Pos. 5The button can be defined with the followingfunctions.

The button is used for retracting the extensionblade if an extension blade is implemented.

People may be crushed. This button can only bepressed when no-one is on the snow plough.By pressing the button the eject lock on the snowplough is lowered.

The button for locking the connecting equipmentis for the side snow plough with hydraulic latchingsystem.

With a front plough with an extension blade, thedefault function of the button is for pivoting theblades in and out.With button Pos. 11, the blades can then be pivo-ted out together on the left and right (clearing orworking position).With button Pos. 9, the blades can then be pivotedin together on the left and right (transport position).


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When engaging the reverse gear the snow ploughis raised.The control panel must be adapted to the function(see chapter "PS 5 control panel adjustments)

Button Pos. 6

With default settingWith a brief press of this button, the snow ploughrelief is switched on.

A long press of the button causes a stage-by-stage increase in the snow plough relief.The individual stages are indicated on an LED

strip on the display.

When reprogramming (reversed buttonfunctionality see chapter "Adjusting the machineto the control panel)With a long press of this button, the snow ploughrelief is switched on.

A brief press of the button causes a stage-by-stage increase in the snow plough relief.The individual stages are indicated on an LED

strip on the display.

Button Pos. 7

With default settingA brief press of this button switches off the snowplough relief.

A long press of the button causes a stage-by-stage reduction in the snow plough relief.

The individual stages are indicated on an LEDstrip on the display.

When reprogramming (reversed buttonfunctionality see chapter "Adjusting the machineto the control panel)With a long press of this button, the snow ploughrelief is switched off.

A brief press of the button causes a stage-by-stage reduction in the snow plough relief.

The individual stages are indicated on an LEDstrip on the display.


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Button Pos. 8

This button is used for raising the snow plough orfor lowering the implement plate with the ploughremoved. When pressing this button the ploughrelief or float position is switched off by actuatingthis button.

Button Pos. 9The button pivots the snow plough to the right forthe duration that the button is held down.

Button Pos. 10When this button is actuated, the snow plough islowered. The plough can be operated in float orlocked position or relief control depending on theplough type and programming (see chapter "PS5Control panel adjustments").

Button Pos. 11

This button is used for pivoting the snow plough tothe left or against the stop for as long as thebutton is held down.

Display Pos. 12Operating mode display

Operating mode display for float setting

Operating mode display for snow plough reliefAppears after pressing the button (Pos.6 or Pos.7).The LED light chain on the right in the displayshows the respective stage of reduction orincrease in plough relief. The more LEDs that areilluminated, the higher the plough relief setting.


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With a side plough with hydraulic latching system,the following operating mode indications also existon the display:

Latching system unlatchedIn this status, the snow plough is only raisedor lowered for attaching or detaching withbutton (Pos. 3, 8, 10). Pivoting is not possible.

Latching system latchedAl l functions are now possib le.

Sensor Pos. 13

The bright/dark sensor causes an automaticbrightness adaptation to the local environmentallighting on the display.

Plug Pos.14

Electrical cable with 37 pin plug-in connection.

Power supply for the control panel

Control line for the hydraulic block


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7 Control and driveThe oil supply for gritter, frontal attachmentmachine, tipper etc. takes place via the vehiclehydraulic system.

NOTE:

Electrohydraulic system suffers damage. Theelectrohydraulic system is not su itable forcontinuous use. The electrohydraulic systemis not suitable for driving sweepers or grit ters.It can only be used for short-term operation.

NOTE:If no consumer is connected, the pressureconnection is not to be switched on.Otherwise, the hydraulic system could bedamaged by overheating.

7.1 Switching with the electr icalhydraulic valve

NOTE:

If there are multiple hydraulic circuits installed in

the vehicle but they are not to be used simul-taneously, they respectively lock each other outelectrically. The activated hydraulic circuit isindicated with the indicator light.The manufacturer's documentation applies formachine operation.

1 2

3 4

VKS

VKS

5

A B

6

A solenoid valve switches the oil flow fromcirculation without pressure to the pressureconnection. The changeover of the oil flow iscarried out with a rocker switch (A) with a separate

indicator light in the vehicle instrument panel orusing a button on the PS 5 control panel (B).The function is switched on if the switch indicatorlight illuminates. The switches are identified withthe corresponding symbol.

Switch symbols1 gritter2 sweeper3 tipper4 gritter or sweeper

5 crane6 Hook lift-roll off tipper


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7.2 Switch with ball cock behind

the driver's cab

NOTE:

If no consumer is connected, the ball cockmust be turned to posi tion B. The oil is then inno-pressure circulation. Otherwise, thehydraulic system could be damaged byoverheating.

A

B

The oil supply is switched on with a ball cock(on the left behind the driver's cab).

In position "B" , the oil flow is in no-pressurecirculation.In position "A" , the oil flow is routed to thepressure connection. Position " A" is only tobe actuated if a consumer is connected to thepressure connection.

7.3 Technical data

7.3.1 Electrical sys tem

Supply voltage: 12 V or 24 V

7.3.2 Hydraulics

Switching valve on/off Solenoid valvePressure limitation 200 bar- 250 bar depending on device


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8 Control, maintenance operations

8.1 Please note: Servicing andinstallation work

NOTEThe chapter "Maintenance and repair workwhich can only be carried out by workshoppersonnel" must be stric tly observed

DANGER

Maintenance, repairs and services must on lybe undertaken by trained mechanics; all workon the hydraulic and electrical equipment mustonly be carried out by persons with specialistknowledge and experience.

DANGER

A person could be severely injured or ki lled.The vehicle must be correctly parked for allwork performed on the hydraulic system:

Lower the snow plough to the groundor li ft i t and fasten the transport safetydevice.

Apply handbrake

Switch the contro l panel off . Turn off the vehic le engine.

Remove the vehicle ignition key.

If necessary, place wheel chocks underthe wheels.

DANGER

Risk of accident and damage.Only use genuine SCHMIDT spare parts.Replacement parts must comply with thetechnical specifications prescribed by themanufacturer. Only genuine spare parts areguaranteed to meet these specifications.

ENVIRONMENT

Environmental hazard!Once the machine has been cleaned, allhydraulic oi l hoses must be checked for leaks,loose connections, abrasion marks anddamage. Any leaking hydraulic oil must becollected or the leak blocked.Observe environmental protection regulations.


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ENVIRONMENT

Environmental hazard!Renew hydraulic hoses every 6 years.The date of manufacture is marked on the

hydraulic hoses.

1 Manufacturers code2 Month of manufacture (e.g. October)3 Year of manufacture (e.g. 1999)4 Maximum permitted operating pressure

(e.g. 345 bar)

DANGER

Af ter maintenance and repair work, replace all

safety equipment and check that all parts arepresent.

NOTEBefore and after each clearing season,a complete maintenance service must beexecuted.

NOTEThe oil level can only be checked when the

vehicle is standing in a horizontal posit ion.

Documenting maintenance workTo uphold guarantee claims, maintenance workmust be documented on the maintenance sheetand is to be confirmed in the maintenance booklet.

DisposalDispose of old oil and replaced parts appropriately.Certain parts are labelled to indicate that they can

be recycled.

Prior to extended downtimesPrior to extended downtimes, you must thoroughlyclean the machinery, lubricate all greasing pointsand exposed parts and touch up any damage topaintwork.

DANGER

Walkways on which oil and grease have beenspi lled are slippery. People may fall and hurtthemselves badly. Clean any walkwayscontaminated with oil or grease thoroughly.


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8.2 Special tools

The usual tools in a technical workshop arerequired for performing maintenance tasks.

8.3 Lubr icant recommendations

TIP

The oil type filled by the factory for delivery isnoted on the hydraulic tank.Mixing different types of oil is to be avoided ifat all possible.

Winteroperation:

Range of application70 C to -20 C

HLP 22 hydraulic oil with DIN 51524 T2 orISO VG 22 DIN 51519 increased corrosionprotection.

Range of application75 C to -40 C

BP AUTRAN DX D-22309

All-yearoperation: Range of application75 C to -10 C

HVLP 46 DIN 51524- T3

TIP

When using environmentally friendly oils(bio-degradable hydraulic oils), the customerservice information "Approved environmentallyfriendly bio-hydraulic oils" must be observed

8.4 Filling quantit ies

Electro-hydraulic system 5 litres

Single-circuit hydraulic system 10 litres

Dual-circuit hydraulic system 40/55 litresDual-circuit hydraulic system 70/90 litresLoad sensing 90/140/160 litres


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8.5 Maintenance schedule


1

2

3

4

5

3

3

4

6

7

8

8


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8.5.2 Electro-hydraulics

1

2

3

4

operating hours

Item Descript ion of maintenance work Lubr icant 10* 50 200

1 Check electrohydraulic pumps for leaks X

2 Check hose lines and screws for leaks. X

3Check hydraulic or quick releasecoupling (observe manufacturer'soperating instructions) for leaks.

X

4

Check the oil level using the dipstick.When the cylinders are retracted the oillevel must be between the markings onthe dipstick.

X

*and check prior to each use


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9 Maintenance and repair work that may only be carriedout by workshop personnel

NOTEThe chapter " Inspection and maintenancework" must be strict ly observed

DANGER

Maintenance work is to be carried out insuitable workshops. All necessary tools and

equipment must be on hand. The workshoppersonnel must have the requiredqualifications and the necessary specialistknowledge for the work to be carried out onthe machine.

DANGER

A person could be severely injured or ki lled.The vehicle must be correctly parked for allwork performed on the hydraulic system:

Lower the snow plough to the groundor lif t it and fasten the transport

safety device. Apply handbrake

Turn off the control panel to control thesnow plough.

Turn off the vehicle engine.

Remove the ignition key of the vehicle.

If necessary, place wheel chocks underthe wheels.

CAUTIONAl l s teps and t readways must be kept freefrom dirt, grease, oil, snow and ice to preventaccidents.

DANGERAl l moving parts must be secured againstunintentional movements.


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TIP A funct ional test must always be carr ied outafter maintenance and repair work.

CAUTION

Protective equipment that has not been fittedmakes it possible to access danger zones.If people are in the danger zones, they couldsuffer a dangerous injury. The injuries couldalso lead to death. When the work is fin ished,protective equipment must be re-fitted and

a check made to ensure that all parts arepresent. A functional test must be performed.

CAUTION

Risk of injury due to excessive physical effort.Assistance is to be sought or a suitable l ift ingdevice is to be used for work that requiresmuch physical exertion.

NOTE If the maintenance intervals are not adheredto, a ful l service is to be carried out after eachclearing season.


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9.1 Maintenance schedule


12 13

1

2

3

4

4

6

7

8

5

5

5

9

10

11


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operating hours

Item Description of maintenance work Lubr icant 50 250 500

1

Check the vehicle hydraulic system for: Damage

Tightness

Connector for corrosion(if required treat with contact grease)

X

2

Check hydraulic hoses and screwconnections for:

Status

Routing

Tightness

X

3

Check hydraulic couplings for(in the case of quick release couplings also refer to

the manufacturer's operating instructions):

Status

Tightness

Operation of the lockingmechanism

X

4

Check hydraulic block for:

Damage

Tightness

Connector for corrosion(if required treat withcontact grease)

X

5

Check hydraulics or quick releasecoupling for:

Status

Tightness

Operation(in the case of quick release couplingsalso refer to the manufacturer's

operating instructions)

X

6 Oil change Hydraulic fluid X

7 Change oil filter X

8

Check V-belt / flat drive beltfor:

Tension

Cracks

Oil

Wear

We recommend always changing the

flat drive belt and tensioning roller atthe same time.

X


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operating hours

Item Description of maintenance work Lubr icant 50 250 500

9

Check drive shaft for: Play on the universal joint shaft

Play on the shapes Bolted joints

(M8 10.9 Tightening torque 35 Nm)

Guard (if present)

X

10Lubricate linkage and longitudinal shifton the drive shaft

Grease3 grease nipple

X

11

Check electrical lines for:

Condition and routing

Short-circuit Connector for corrosion

(if required treat with contact grease)

X

12Touch up paint damage and greasebare parts.

- Paint- Multi-purpose

grease- Machine oil

X

13Check technical safety in accordancewith current accident preventionguidelines.

Annually


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8 9

1

2

3

4

6

5

operating hours

Item Descript ion of maintenance work Lubr icant 50 250 500

1

Check electrohydraulic system for: Damage

Tightness


X

2

Check hydraulic hoses and screwconnections for:

Status

Routing

Tightness

X

3

Check quick release coupling for:

Status

Tightness

Operation of the lockingmechanism

Observe the manufacturer's operatinginstructions.

X

4 Oil change Hydraulic fluid X

5 Clean the oil strainer X


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operating hours

Item Descript ion of maintenance work Lubr icant 50 250 500

6

Check electrical lines for: Condition and routing

Short-circuit


X

7Touch up paint damage and greasebare parts.

- Paint- Multi-purpose

grease- Machine oil

X

8Check technical safety in accordancewith current accident preventionguidelines.

Annually

9.2 Special tools for workshoppersonnel

The usual tools in a technical workshop arerequired for performing maintenance tasks.Supports and lashing straps must be used to

fasten components that might fall.

9.3 Maintenance work

9.3.1 Oil change

CAUTION

Risk of scaldingAlways note the oil temperature whenchanging oil . They can cause skin damage

from temperatures of 50C and above in casesof contact. Always wear protective clothing(such as gloves) when changing oi l.

NOTEUse only oils that have been approved bySCHMIDT.

ENVIRONMENT Used oil is to be disposed of according to theapplicable regulations.


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1

Pull the filter element (1) from the filter housing.

Clean the housing and cover. Check the O rings on the cover for damage

and change these if necessary.

Install the filter

Installing the filter is carried out by reversing thedisassembly sequence.Wet the sealing surfaces with clean oil.

The identification markings on the new filterelement must correspond to those on the old filterelement. Turn on hydraulic equipment and checkthe filter for leakages; check the oil level and fillif necessary.

9.3.2.2 Changing hydraulic flu id

TIP

It is possible to have oil quality checked byan oil analysis carried out by a specialistcompany. These specialist companies provideinformation about whether oil can stil l becleaned or whether it needs changing.

1

2

3

Open the ventilated filler cap (1)

Place catch pan under draining point. Open theoil release screw and empty the tank completely.

Block the oil drainage point again with thedrain plug and a new seal.

Fill with new hydraulic fluid.

To get any possible dirt particles out of the newoil, the oil should be filled using a filter unit orthrough the filter (3). After filling, the filter cover(2) and the ventilated filler cap (1) are to beclosed. Check oil level using the control panel.

Leave engine running for approximately oneminute and then switch it off. Check the oil andadd more oil if necessary.

Repeat procedure until the oil levelno longer changes


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9.3.3 Electro-hydraulicsChanging the oil and cleaning

the oil strainer

1

2

3

9.3.3.1 Removing the oil

Warm the hydraulic fluid to approximately50 C by moving the snow plough(raising, lowering, pivoting).

Park the vehicle safely.

Unscrew the filler cap with oil dipstick (1).

Suck out the oil with suction equipment (2).Put the suction nozzle (3) into the filler opening

and suck out the oil.

1

9.3.3.2 Draining oil

Place the oil capture container under theelectrohydraulic pump.

Carefully loosen the tank by loosening the4 screws (1) until oil flows out between thepump flange and the oil container.

Remove the tank

Clean the tank, especially the magnets that arein the tank.

Reinstall the tank. Ensure that the sealingsurface is clean and that the sealing ring hasbeen lightly oiled.

1

2

3

9.3.3.3 Fill the hydraulic equipmentwith oil

Fill with oil (approximately 5 litres) using the

filler opening (1). Check oil level using the dipstick (2). The oil

must be between the markings (3) when thehydraulic cylinders are retracted.

Turn on the hydraulic equipment and carry outall hydraulic functions. Check oil level again.Repeat the procedure until the oil level nolonger changes.


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10 PS 5 control panel adjustment

NOTE:

An incorrect ly adjusted control panel can dama-ge the hydraulic system and cause malfunctions.This also invalidates any warranty claim.Modifications to the parameters set on the PS 5control panel can only be undertaken by instruc-ted and trained personnel who have beenapproved by the factory. Changes must berecorded in writing and signed.

10.1 Adjusting the cont rol panel tothe machine

Function

Switch panel off with button Pos. 1.

Hold button Pos. 8 pressed down, then switchpanel on with button Pos. 1.The version is shown on the display e.g. 1.1 =Version 1.1 and the beeper beeps every second.

Hold button Pos. 6 pressed down until a 1 appearson the display.The beeper continues to beep each second.

Use buttons Pos. 6 and 7 to set the desired settingaccording to the table (Settings, Display column).

Use button Pos. 2 to enable setting mode. The 1remains on the display and the beeping stops.

Use buttons Pos. 6 and 7 to set the valueaccording to the table (Settings, Selection column).

Save the values with button Pos. 2. The 1 flasheson the display.


Switch the panel on and check values with button

Pos. 1.

Settings

NOTE:Display "OFF = off

Display"ON" = on


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NOTE:On control panel version 1.5 (the version isshown at the start of programming on thedisp lay), only posit ions 1 to 15 can be set.

NOTE:

When programming begins, the version isshown. Depending on the version, differentparameters (see following table) can be set.

Control panel Version 1.5 adjustable up to positions 15.Control panel Version 2.0 adjustable up to positions 19.Control panel Version 2.3 adjustable up to positions 22.Control panel Version 2.6 adjustable up to positions 25.Control panel Version 2.7 adjustable up to positions 27.Control panel Version 2.8 adjustable up to positions 28.Control panel Version 3.0 adjustable up to positions 30.Control panel Version 3.1 adjustable up to positions 31.Control panel Version 3.3 adjustable up to positions 34.

Displaynumber

Set value SelectionStandard

1Adjusting the pressure for ploughrelief (see chapter "Setting ploughrelief pressure").

Setting for minimum/maximumrelief pressure.

2Intermittent float setting(automatic float setting when

plough is raised)

ON / OFF OFF

3 Snow plough working positionON = Float setting

ONOFF = Locked

4 Plough relief ON / OFF ON

5

Electrohydraulics / vehiclehydraulics with solenoid valvecoupling or vehicle hydraulicswithout solenoid valve coupling

ON = Electrohydraulics /vehicle hydraulics withsolenoid valve coupling

OFFOFF = Vehicle hydraulics

without solenoid valvecoupling

6 Hydraulic model or machine

0 = Geared pump1 = LS pump block as of 09/20002 = LS pump bock up until 08/20003 = RPS-H (reflector post washer)4 = Hydraulic system BW fleet5 = Function for FS auger/spinner6 = Function for SF3Z cutter7 = LS pump (Block as from 2007 with PLC)8 = Special system double prop block9 = FS tractor attachment

0


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Displaynumber


7Extension blade (e.g. with plough

ML51-A)ON / OFF OFF

8 Hydraulic device lock for CPS ON / OFF OFF

9 Lock valve for side-ploughOFF SCHMIDT CPS

OFFON Beilhack

10Cycle for plough relief 10:2sec(only with electro-hydraulic)

ON / OFF OFF

11Automatic operation with pulsecontact control

ON / OFF OFF

12

Activating the button Fig. 1 Pos. A(e.g. for switching a gritter valve)

ON / OFF OFF

13 Eject lock ON / OFF OFF

14Reversing valve for auxiliaryfunction

ON / OFF OFF

15 Lighting function for NIDO ON / OFF OFF

16Raise snow plough when engaging

reverse gear

0 = Switched off1..9 = Raising time

3 to 11 seconds

0

17 FLUID -Hydraulic block ON / OFF OFF

18 Relief adjustable in 10 stages ON / OFF OFF

19 MF11K function ON / OFF OFF

20Reverse double function upon buttonactuation (Relief Pos. 6 and 7)

ON

Button actuationPos. 6 and 7 brieflyChange relief

Button actuationPos. 6 and 7 longRelief ON with button

Pos. 6 and relief OFFwith button Pos. 7

OFF

OFF

Button actuationPos. 6 and 7 brieflyRelief ON with buttonPos. 6 and relief OFFwith button Pos. 7

Button actuationPos. 6 and 7 longChange relief


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Displaynumber


21

Setting minimum and maximum oilquantity for circuits 1 and 2.(see chapter "Setting oil quantityfor front hydraulic connections").

No setting

22 Change cycle for plough relief. ONCycle for plough relief isextended to 60:2 sec.Number 10 must be ON

OFF

23Oil supply for crane or tilt-hoistoperation (circuit 2).

OFF No function

OFFON

Prerequisite: Display No. 6

(Parameter) mustbe programmed onhydraulic model 7.

Oil flow with set litreoutput "see hydraulicplan) can be reroutedto crane operation ortilt-hoist operation

24Oil supply for crane or tilt-hoistoperation (circuit 2A).

OFF No function

OFFON



Oil flow with set litreoutput "see hydraulicplan) can be reroutedto crane operation ortilt-hoist operation

25Oil supply for crane or tilt-hoistoperation.

OFF No function

OFFON



Oil flow is rerouted viaan electrically actuatedvalve.


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Displaynumber


26 Signal tone upon button actuation

OFF Signal tone switched on

OFFON Signal tone switched off

27Oil supply for frontal attachmentsweeper (circuit 2A).

OFF No function

OFFON



Additional oil supply forsweeper drive can beadded.

28Warning if oil is low or oiltemperature is too high

OFF No function

OFFON

Warning is displayed(see chapter "Faultdisplay via the controlpanel)

29Switch on oil supply for crane ortilt-hoist operation via separateswitch (circuit 2).

OFF No function

OFFON



Oil flow is rerouted viaan electrically actuatedvalve.

30

Switch over function "Gritter on/off"from button Pos. 2 to button Pos. 4(see chapter 5). Set the oil quantityvia circuit 2A.

OFF No function

OFFON



Display No. 27(Parameter) must

be programmed to"ON".

31Switch over control panel to SNKelectrohydraulic system as frommodel year 2009

OFF No function

OFFON

Electrohydraulicsystem as from modelyear 2009

32

End position detection.Adjustment value for the pressuresensor in automatic mode.Adjustable over the range 0..25.

(The value times 10 results in thepressure e.g. 9 set = 90bar).

OFF No function

0ON

Prerequisite: Automatic mode

parameter 11 must

be switched to ON.


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Displaynumber


33 Level and temperature shutdown

OFF No function

OFFON

Prerequisite: Parameter 6.

Hydraulic model 7must be activated.(LS pump with PLCcontrol via separatevalve in the LSpump line)

34Reversal of the hydraulic functions"Relief / ground pressure" andactivation of the tipper function

OFF No function

OFFON

Prerequisite: Parameter 6.

Hydraulic model 0must be activated.

Parameter 31.Electrohydraulicsystem as frommodel year 2009"ON" must beactivated.

NOTE:

If parameter 17 (see table Display 17) ischanged, the relief pressure has to be reset(see chapter "Setting the pressure forplough relief").

DANGER

If the control valve (see table Display 12) and thesolenoid valve coupling or electro-hydraulic(table Display 15) are simultaneously set to ON,the solenoid coupling or the electro-hydraulicsare switched on immediately when the controlpanel is switched on.


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10.2 Setting the plough reliefpressure

NOTE:Before the values are changed for the ploughrelief, the plough relief must be programmedto ON.

Function




Use button Pos. 6 and 7 to set selection 1.

Use button Pos. 2 to enable setting mode. The 1on the display remains, the beep stops.

Setting values:Setting higher pressure (Maximum 60 bar).Hold the button Pos. 8 down and set the valuewith buttons Pos. 6 and 7.Mounted machines are not to be raised.

Setting lower pressure (minimum 15 bar).Hold the button Pos. 10 down and set the valuewith buttons Pos. 6 and 7.



Switch the panel on and check values with buttonPos. 1.


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10.3 Setting the oil volume for front

hydraulic connections

Function





Use button Pos. 2 to enable setting mode. The 1remains on the display and the beeping stops.

Setting values:

Setting the maximum oil volume.Hold the button Pos. 4 down and set the valuewith buttons Pos. 6 and 7.

Setting the minimum oil volume.Hold the button Pos. 3 down and set the valuewith buttons Pos. 6 and 7.





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10.4 Setting the oil volume forhydraulic ci rcuits 1 and 2

NOTE:

Before the values have to be changed for oilvolumes for hydraulic circuits 1 and 2, thecontrol panel must f irst be adapted to yourhydraulic system (see chapter 8.1 Settings, Display 6)..On LS hydraulic systems, the hydraulic planadapted to your vehicle must be observed.

Function


Hold button Pos. 8 pressed down, then switch

panel on with button Pos. 1. The version is shownon the display e.g. 1.1 = Version 1.1 and thebeeper beeps every second.



Use button Pos. 2 to enable setting mode. The 21on the display remains, the beep stops.

Setting values:Setting the maximum oil volume for circuit 1.Hold the button Pos. 8 down and set the value withbuttons Pos. 6 and 7.

Setting the minimum oil volume for circuit 1.Hold the button Pos. 10 down and set the valuewith buttons Pos. 6 and 7.

Setting the maximum oil volume for circuit 2.Hold the button Pos. 4 down and set the value withbuttons Pos. 6 and 7.

Setting the minimum oil volume for circuit 2.Hold the button Pos. 3 down and set the value withbuttons Pos. 6 and 7.

Setting the maximum oil volume for circuit 2A.Hold the button Pos. 5 down and set the value withbuttons Pos. 6 and 7.





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11 Malfunctions

TIPIf faults occur during operation, trouble-shooting will either be done on the electrical orhydraulic parts of the system.

DANGER:When actuating the valve manually, the

attachment machine moves.- DANGER OF ACCIDENT -

11.1 Setting the thrott le-valve andthe pressure control valve


A1

B1

1

2

If necessary, the throttle valves or pressure controlvalves are to be reset to the specified values(see circuit diagram). The one-way restrictor valvein line A1 remains completely open. The loweringspeed can be set with the one-way restrictor valvein line B1. Loosen lock nut Pos. 1 (SW 10) andcylinder head screw Pos. 2 (SW 5) to set thedesired lowering speed.

X

Throttle valve Setting dimensions

Dimension X

A1 valve open, set dimension 19 mmB1 valve restricted, set dimension = 15.8 mm


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11.1.2 Vehicle hydraulics wi th sidewings

DANGER:The lowering process for the front-mountmachine attachment is never to occur ata free-fall.

1

23

4

56

A

Setting the thrott le valve on the one-wayrestrictor valve (Pos. 1)The lowering speed of the front-mount machineattachment can be set using the one-way restrictorvalve (Pos. 1). This requires loosening the

lock-nut (Pos. 2) (wrench size 17) and usinghexagon socket head bolt (Pos. 3) to set thelowering speed (factory setting: Dimension A7 mm) (wrench size 5).

Setting the pressure control valve (Pos. 4)The pressure control valve (Pos. 4) is used forsetting the system pressure (hydraulic circuit forthe front attachment).This requires loosening the lock-nut (Pos. 5)(wrench size 17) and using hexagon socket head

bolt (Pos. 6) (wrench size 5) to set the specifiedvalue (see hydraulic circuit diagram) with the helpof a measuring device.

Setting secondary valve

NOTE

The hydraulic system or the side snow ploughcan be damaged. Settings on the hydraulicblock can only be adjusted by an expert usingsuitable measuring devices.

1

The start-up pressure by be set by the secondaryvalve (1). In the case of a SCHMIDT side snowplough MODEL CPS, the pressure must be setto 150 bar. After setting the pressure must berechecked.


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11.2 Fault in the magnetic coupling

NOTE:

The mechanical block for the magneticcoupling is an emergency solut ion and is notpermitted for cont inuous operation. The faultis to be rectified as soon as possible.

DANGER:

The magnetic coupling switch will not function.Pumps run when the vehicle engine is running.When working on the magnetic coupling, thevehicle engine is to be switched off.

Mechanical blocking of the magnetic coupling (with pump drive via magnetic coupling, seechapter 3.3)

If there is a fault in the flow of current for themagnetic coupling, it can be blocked mechanically(emergency operation). In this case, the vehicleengine must be switched off.

Remove the two cylinder head bolts (SW 6)with lock-nut (SW 13) (Pos. 1).

Turn the outer ring (Pos. 2) until the gap isabove the threaded hole in the inner ring.

Screw in the cylinder head bolts (Pos.1)without lock-nuts into the two threadedholes (Pos. 3) of the inner ring and tighten.The solenoid coupling is blocked.

Magnetic coupling will not function.


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11.3 Fault display via the cont rol panel

11.3.1 PS 5 control panel fault display.1

The fault display occurs optically and acousticallyvia the control panel.The fault message is shown on the display (1).

11.3.1.1 Fault messages

Display flashes and buzzer is sounded.

Possible causes: Hydraulic oil level too low in the hydraulic

tank.

Electrical line to the sensor interrupted.

Display flashes and buzzer is sounded

Possible causes:

Hydraulic oil temperature to high in thehydraulic tank.

Electrical line to the sensor interrupted.

Display (F+number) flashes and buzzer is sounded.Faulty output stage displayed indirectly. 1 is to beadded to the number of the fault message to attainthe faulty output stage.

For example:Display of fault message "F5" means that outputstage 6 is defective.

Possible causes:

Respective electrical output on the panel is

defective (see electrical circuit diagram). Short-circuit to ground in the vehicle wiring.

Display (F8) flashes and buzzer is sounded

Possible causes:

Electrical output for proportional outputstage 1+ is defective (see electricalcircuit diagram).

Short-circuit to ground in the vehicle wiring.


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Display (F9) flashes and buzzer is sounded

Possible causes:

Electrical output for proportional outputstage 2+ is defective (see electricalcircuit diagram).

Short-circuit to ground in the vehicle wiring.

or

Display flashes and buzzer is soundedVoltage is applied to more than pin no. 1, 5, and10, before the panel is switched through.

Possible causes: Plug-in connection vehicle - control panel is

defective. When the ignition of the vehicleis switched on, voltage is only applied to pinno. 1, 5, and 10.

Panel defective (internal short-circuit).

11.3.2 Addit ional fault display on thevehicle instrumentation panel

Hydraulic oil temperature to high in the hydraulictank.

Hydraulic oil level too low in the hydraulic tank.


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11.4 Malfunctions and remedies

Malfunctions Possible cause/remedyHydraulic pump does not run Control panel is not switched on

o Switch on control panelControl panel defective

o Repair/replace control panelPower supply interrupted

o Establish power supplyFuse defective

o Replace fuseElectric motor (in the electrohydraulic system) defect

o Repair/replace electric motorPump drive defective

o Repair or replace V-belt or drive shaft

No oil supply to the consumers Hydraulic pump does not runo See fault "Hydraulic pump does not run"

No, or not enough, oil in the hydraulic tanko Filling up with oil

Oil strainer/hydraulic filter dirtyo Clean oil strainer/hydraulic filter

Hydraulic valve does not switcho Repair electrical connection

o Replace solenoid coilControl panel defective

o Repair/replace control panelHydraulic system not connected properly

o Reconnect hydraulic system properly

Fault message on the controlpanel display

See chapter "Fault display on the control panel"


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12 Hydraulic system

12.1 Hydraulic circui t diagram

12.1.1 Hydraulic circuit diagramvehicle hydraulics

1

2

3

45

6

7

8

9

1 Hydraulic tank

2 Hydraulic pump

3 Possible drive variants for hydraulic pumps

4 Hydraulic block for the front-side oil supply

5Hydraulic block for rear-side (behind the driver's cab)oil supply

6Hydraulic couplings on front. Oil supply, e.g. fora front-mount snow plough.

7Hydraulic couplings behind the driver's cab.Oil supply, e.g. for a side snow plough.

8Control panel for the control of the front-mountsnow plough

9

Control panel for the control of a snow plough

mounted between the axles


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12.1.2 Hydraulic circuit diagramelectrohydraulics

1

2

3

4

1 Electrohydraulic pump with hydraulic block

2Hydraulic couplings behind the driver's cab.Oil supply, e.g. for a side snow plough.

3 Power supply for electrohydraulic pump

4Control panel for the control of the front-mountsnow plough


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12.2 Labels on hydraulic couplingson the vehicle

A

B

A Identification of the hydraulic couplings onthe vehicle

B Hydraulic connections on the machine

12.2.1 Connection for front snow

plough without extension blade

Identification for hydrauliccoupling on the snow plough

Hydraulic connectionFront snow plough without extension blade

Coupling Return line

Coupling No. 1 Raise front snow plough

Coupling No. 2 Lower front snow plough

Coupling No. 3 Pivot front snow plough to the left

Coupling No. 4 Pivot front snow plough to the right

12.2.2 Connection for front snowplough with extension blade

Hydraulikanlage Schmidt Mit PS 5 Ausgabe 18_EN

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Transcript of Hydraulikanlage Schmidt Mit PS 5 Ausgabe 18_EN