146 | Holder 4.74 specification

Operating instructions					C 4.74
Troubleshooting guide					C 4.74
Troubleshooting guide
Problem		Cause		Remedy
Problem		Cause		Remedy

Many malfunctions		Some parameters out of adjustment		Load “default settings” with Opus or
				PC software

Buttons respond too slowly		Set incorrectly to “slow”		Can be set to “fast” with Opus or PC
				software

Buttons “locked” instead of “active”		Set incorrectly		Can be set with Opus or PC software

Hydraulic implement cushioning		Turned off		Turn on with keyboard
inoperative		Electronic pressure sensor defective		Replace
		Electronic pressure sensor defective		Replace
		Specified pressure too low		Change on electric pressure sensor
		Function switched to rear power lift		Set to “Front” with Opus

Implement cushioning pulsing a lot		Specified pressure and hysteresis		Change pressure sensor settings
		too low or too high
		Implement weight too low		Turning off the implement cushioning
		Hydraulic pressure accumulator		Renew pressure accumulator
		defective, no cushioning noticeable

Position control inoperative		Actual value transmitter (angle		Renew
		sensor) defective
		Angle sensor adjusted incorrectly		Readjust acc. to specifications
		Angle sensor with incorrect range		Increase higher value with specified
		setting		value potentiometer, decrease lower
				value

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Image 147

Holder 4.74 manual 146

Contents

Operating Instructions Development General notes on serviceOperating instructions Foreword Date of issue and manual version November ForewordExplanation of terminology Table of contents Page Unintended applications Instructions for the vehicleIntended Use Site of operation Residual hazards and risks Instructions for the vehicle Over 32 km/h Operating instructionsDriver’s licence Driver’s licence classes Operating instructions Operating instructions Operating instructions Work clothing SafetyGeneral notes on safety Safety notes for later installations Gear oil, engine oil, diesel fuel Safety precautions for handling fuels and oils Battery acid Hydraulic oil, brake fluidEmissions Exhaust gases Heat Battery Vehicle dimensions Dimensional drawing Technical data Table of dimensions C Technical data 1040 mm Vehicle Track width e Total width f Dimension Type Track widths TiresNormal track Weights Max Type Weight Engine specifications Tires Type Technical data Traction hydraulics Trailer hitch Assembly Suppl. information Description SteeringFront power lift Brakes Assembly Suppl. information Description Rear power lift Loading platformWorking hydraulics with Steering Vehicle overall Assembly Suppl. information Description PTOsElectrical system Fuel systemPage Exhaust gas identification Noise level Description Views Vehicle14Front left view Description VehicleRear right view Operating controls Driver’s station Right front controls console Right rear console controls Hand throttle Rear console controls Pedals Joystick Heater until Steering wheel adjustment Multifunctional display, legend 10 9 8 Controls in cabin at front bottom Controls in cabin at front top Door controls Door opener Controls in cabin at rear Identification plates Location of plates and labels Mounting instructions for licence plates Overview of options and variants selection Assembly Additional information Dimension/Order No./Type Assembly Supplementary information Dimension/Order No./Type Accessories Page Daily checks and services prior to taking into operation Check and clean the cooler and debris screensTaking into operation Do not fill too much oil Turn on the battery isolating switchTaking into operation Check the engine oil level Check the tire inflation pressure Check the trailer hitch option if required Check the hydraulic oil level Approx L Filling fuel Adjust the steering wheel Do not adjust the steering wheel while driv- ingCheck the brake fluid level Do not adjust the seat while driving. Risk of accidents Adjust the driver’s seat with mechanical suspension Adjusting the driver’s seat with pneumatic suspen- sion Adjusting the lumbar paddingAdjusting the backrest inclination Adjusting the driver’s weight Adjusting the horizontal suspensionAdjusting the seat horizontally Check the lights and rear view mirror Filling washing water Starting the engine Start the engine BildC164 Check the brakes and steering for proper operation Driving safety rules OperationBefore starting to drive Operation DrivingDriving with hydrostatic drive and digital electronics Table of driving ranges Operation Stop Selecting on-road travel transport speed Setting the working speed of programs 3 Operating instructions Adjusting the fine control knob Driving with SDS Special Drive System Changing the direction of travel Operating the inching pedalRelease the inching pedal again after passing Obstacle Vehicle will resume the previously selected Speed Disengaging the differential lock Engaging the differential lock Two-stage steering Steering Parking brake is not intended to be used Applying the service brakeBrakes Applying the parking brake Releasing the parking brake An alarm is sounded when driving with Hand brake applied Driving on slopes Uphill Removal of hydraulic oil for stationary operation Special operating instructionsStationary operation Place the vehicle n level ground in both di- rections Adjusting the track width Special operating instructions215 Nm Engine oil for winter operation Ballast weightsOperation in winter Oil preheating Winter diesel fuelPage Safety instructions for handling implements Operating the implementsPossible implements Additional information on implements Operating the implements Front implement Rear implement or front/rear combinations Operating instructions Attaching implements Adjusting the length of the pintle hook bar Adjusting the pintle hooks and pintle hook bars Adjusting the upper link Equipment must not hit the cabinBoth threads must be screwed in equally far Connecting hydraulic lines Removing implements Installing the cardan shafts Operating the joystick Joystick operation Operating the front power lift Tilting the front power liftSideshifting the front power lift Operating the front power lift with keyboard Operating the tilting device with the keyboard Switching the front power lift to double-acting Operating the sideshift with the keyboard Transport safety External operation of the front power lift Toggle button for Float Position Button Flow limiter for joystick Operating the rear power lift External operation of the rear power lift Operating the hydraulic couplings Operating the green hydraulic couplings Operating the blue hydraulic couplingsOperating the yellow and white hydraulic couplings Turning on the front PTO Turning on the rear PTO Operating the hydraulic cushioning* front power lift Adjusting the hysteresisGas pressure in the diaphragm accumu- lator is 30 bar Driving on-road with implement cushioning Operation with implement cushioningTurning the implement cushioning off 102 Operating the implements Turning off the implement variable-displacement Pump Make sure no-one is standing in the danger zone at the rear Operating the hydraulic dumper Operating priority flow valve Press button 4 only at low engine speedSlowly increase the speed of the engine Turning off the priority flow valve Press button 3 only at low engine speed 109 Page Removing the roof hatch Other activitiesOperating the driver’s cab Operating the roof hatch Opening the roof hatch Other activities Turning on windshield wiper/washerFront windshield wiper/washer Turn the preheat/starter switch to position Lights Turning on and operating the lightsTurning on high beam 13 14 Signalling to the left, signalling to the right Turning on the top headlightsOperating the horn Turning on the rotating beacon Operating the hazard warning flasher system Turning on the flood light Flood light must not be used in the public traffic areaInterior light Turning on the interior light Radio* and loudspeakers Operating the radio Power socket Connecting equipment to the power socket Heating and ventilating Turning on the heater Heater Fresh air blower has 2 speeds Turning on the ventilation Air conditioning Cleaning the condenserAir conditioning Operating the air conditioning Vehicle fuses Fuses 123 Page Taking out of operation Leaving the vehicleStopping Leaving the vehicle Taking out of operationShutdown Do not leave the cabin without taking the ig- nition key Trailers, towing Trailers, towing Operating the trailer hitch manually, attaching trailersBearing load Trailer hitch must be completely closed Driving with trailers Do not step or stand under a suspended load. Danger Transport, hoisting, towingInstructions for transport Hoisting instructions Towing instructions Transport, hoisting, towing Brake cable is very taut risk of injury Secure the vehicle against rolling with chocksPage Adjusting the speedometer Indicators, adjustmentsPage Problem Cause Remedy Troubleshooting guideProblems in engine and exhaust gas turbo Problems in electronic and hydraulic driving systems Troubleshooting guide Troubleshooting guide Cause Remedy 141 Problems in the hydraulic system and steer- ing 143 Problems in the working hydraulic system 145 146 147 Page How to value the vehicle? General remarks on maintenanceQualification of service personnel Service General remarks on maintenance Following services were carried outService Hours Date Signature Interval Operation Handling fuels and lubricants Safety notes for maintenance 152 Work on the electrical system Disconnect the battery ground lead Jacking up Jack lift points To lower it, return the changeover lever 1 to the left Securing the dump body loading platform Raise the cabin carefully Tilting the cab Maintenance after the first 500 hours Maintenance schedule Maintenance every 500 hours Maintenance schedule Maintenance every 1500 hours Maintenance every 3000 hoursAnnual maintenance Page Maintenance during the first period of operation Maintenance after the first 50 hoursCheck the engine for leaks Page Adjusting the speedometer Maintenance as required Switch layout Tire size Combination Maintenance as required Replacement CleaningPage Check the cooling system Periodic maintenance Maintenance every 125 hoursClean the cooling system Clean with compressed air Clean with cold cleaner or pressure washer Maintenance every 125 hours Check the battery and cable terminalsCheck the high pressure hoses Check the brake fluid level for the foot brake Check the steering cylinder and orbitrol Do not operate the vehicle with a defective braking system Check the braking system Grease the vehicle Tighten nuts and bolts Tighten wheel nuts215 Nm Check the electrical system Clean the fresh air filter Page Litres Maintenance every 500 hoursChange the engine oil Observe the instructions for handling fuels and lubricants Maintenance every 500 hours Change the engine oil filterCheck hose couplings for leaks Check the heating system Page Maintenance every 1000 hours Check the batteryCheck engine valve clearances Maintenance every 1000 hours Service V-belts only with the engine station- aryCheck V-belt tension and condition Clean / replace the fuel pump strainer Change the fuel filter and fuel prefilterFuel system is bled automatically Do not inject too much grease to prevent damage to the seal Lubricating the cardan joint nipples Change the hydraulic oil while at operating temperature Maintenance every 1500 hours Maintenance every 1500 hours CleanChange Matically Air in the hydraulic system is bled autoPage Maintenance every 3000 hours Check the injection nozzlesChange the toothed belt Page Change the brake fluid of the foot brake Annual maintenancePage Putting the vehicle back in service after lay-up Laying upEngine preservation Remove engine preservation Laying up Fuel and lubricant recommendations Greases Fuel and lubricant recommendationsRecommended engine oils and greases Manufacturer Lubricating oil type Brake fluid Do not use mineral oilFuels Page Filling quantities Maintenance data Tightening torques Hexagon screws and studs Maintenance data List of replacement parts Description Order No Bulbs 12 Lights Rating Maintenance data 202 100 Alphabetical index 118 Alphabetical index 205 206 207 208 209 210