Troubleshooting

If the action below does not solve the problem or the fault cannot be found, contact Moxy dealer. *= Always contact your Moxy Dealer.

Symptom Cause Action

Engine:

Will not start

Starts but stops again, runs un-evenly or hunts.

Low output

Overheated (warning light)

Low coolant temperature

Low oil pressure • Main switch disconnected • Out of fuel • Low battery current • Blown fuse • Defective wiring • Hydrostatic lock • Starter motor defective • Electronic controller or sensors defective

• Fuel system disturbance • Condensated water in diesel • Bad fuel quality • Low fuel level • Fuel filters clogged • Air filter clogged • Fuel tank breather clogged • Throttle system disturbance • Wrong injection timing • Injector defective • Turbo charger defective • Worn engine or internal damage • Electronic controller or sensors defective

• Low coolant level • Fan belt problem • Air in cooling system • Dirt inside cooling system • Radiator fins clogged/damaged • Thermostat faulty • Sensor/gauge defective • Coolant pump worn

• Sensor/gauge defective • Thermostat stuck open

• Too low oil level • Incorrect oil type • Sensor/gauge defective • Oil pressure red. valve faulty • Worn oil pump • Turn on

Refill fuel, bleed system

Recharge

Check circuit, replace fuse

Check connections, wires

Repair*

Replace*

Check/repair*

Check fuel lines, bleed system Drain tank Change fuel Refill fuel Replace filters Replace or clean Clean tank cover Adjust/replace/repair Adjust* Repair/replace* Repair/replace* Overhaul* Check/repair*

Add coolant, check for leakages Tighten/replace Bleed system Clean and replace coolant Clean Replace Replace Overhaul*

Replace Replace

Add oil, check for leakage Change to correct oil type Replace Overhaul* Overhaul*

Blue smoke, oil consumed

Black or white smoke

Oil in coolant or coolant in oil

Knocking noise

Main warning light illuminates • Too high oil level • Incorrect oil type • Worn engine or internal damage

• Clogged air filter • Fuel pump/injection system worn or faulty • Cylinder gasket defective • Turbocharger defective

• Internal leak in transmission cooler • Worn engine or internal damage • Internal leak on engine oil cooler

• Bad fuel quality • Valves incorrectly adjusted • Injection pump incorrectly adjusted • Injector defective • Worn engine or internal damage

• Engine / engine controller failure Adjust to specified level Change to correct oil type Overhaul*

Replace or clean Adjust/repair* Replace* Repair/replace*

Replace* Overhaul* Replace*

Change fuel Adjust Adjust* Replace* Overhaul*

Stop the dump truck at a safe place and check the error codes. Contact your Moxy Dealer

Transmission:

Too high temperature

No drive in any gear or only possible to drive in some gears

Low oil pressure

Noise • Too low oil level • Incorrect oil type • Cooling circuit failure • Lock-up fault • Worn oil pump Add oil, check for leakage Change to correct oil type Check/repair Overhaul* Overhaul*

• Too low oil level • Blown fuse

Add oil, check for leakage Check circuit • Converter prop. shaft Replace • Electronic controller detect failure, neutral engaged Check/repair* • Electronic controller or sensors defective Check/repair* • Flywheel damper separated Replace* • Drive line failure Check/repair* • Internal transmission failure Overhaul* • Automatic central lubrication failure Check/repair*

• Too low oil level • Incorrect oil type • Sensor/gauge defective • Pressure control valve failure • Worn oil pump • Internal transmission failure Add oil, check for leakage Change to correct oil type Replace Check/repair* Overhaul* Overhaul/replace*

• Too high oil level • Incorrect oil type in differential(s) • Worn transm. or internal damage Adjust to specified level Change to correct type Overhaul/replace*

Main warning light illuminates • Transmission / transmission controller failure Stop the dump truck at a safe place, select neutral gear position and check the error codes on the gear display.

Following error codes can be read on the gear display: • First digit 1, second digit 1-9 • Digital input signals • First digit 2, second digit 1-9 • Analog input signals • First digit 3, second digit1-9 or A-E • Speed signals

• First digit 5, second digit 1-9 • CAN signal error • First digit 6, second digit 1-9 or A-F • CAN signal error

• First digit 7, second digit 1-9 or A-C • Analog current output signals

• First digit 8, second digit 1-9 • Analog current output signals • First digit 9, second digit 1-9 or A-F • Digital output signals

• First digit A, second digit 1-9 • Digital output signals • First digit B, second digit 1-9 or A-F • Clutch errors

• First digit D, second diget 1-9 • Power supply • First digit E, second digit 1-9 • High speed signals • First digit F, second digit 1-9 • General errors Check/repair* Check/repair* Check/repair*

Check/repair* Check/repair*

Check/repair*

Check/repair* Check/repair*

Check/repair* Check/repair*

Check/repair* Check/repair* Check/repair*

Brakes:

Poor braking effect or truck pull to one side when braking

Hydraulic system:

Emergency steering light on when driving

Truck will not go straight ahead, uneven steering movement or periodically sticking

Not possible to tip or slow tipping

Electrical system:

No electrical power

Charge warning light on • Low hydraulic oil level • Uneven worn brake pads • Insufficient fluid pressure • A brake caliper is stuck

• No oil flow from main pump, or no oil flow from emergencypump • Oil flow switch defective

• Low hydraulic oil level • Air trapped in hydraulic system • Contaminated oil • Incorrect oil type • Steering cylinders internal leak • Orbitrol or steering valve failure

• Low hydraulic oil level • Clogged oil filter • Insufficient air pressure • Clogged tank strainer or breather • Low oil pressure • Worn oil pump • Tip valve failure

• Main switch disconnected • Batteries discharged • Battery terminals/wiring defective

• Fan belt problem • Defective/worn alternator • Defective wiring Add oil, check for leakage Replace pads Check charging and system Repair*

Check and repair* Check and repair* Replace*

Add oil, check for leakage. Bleed system Change oil and flush system Change to correct oil type Overhaul* Check and repair*

Add oil, check for leakage Replace Check charging Replace/clean Check/repair* Check/repair* Overhaul*

Turn on Recharge Repair

Tighten/replace Replace Check connections, wires

Chassis:

Uncomfortable travel (jumping)

Vibrations • Defective shock absorber • Defective rubber suspension • Articulation turning ring worn

• Engine or transm. mountings • Fan or flywheel loose/imbalance • Defective elastic coupling • Prop. shaft failure • Drive line problem Replace Replace Overhaul*

Replace Check/repair* Check/repair* Check/repair* Check/repair*

Lubricants

6. Lubricants ................................................................. 117 - 124

Lubrication schedule .................................................119

Oil specification sheet ...............................................121 Filling capacities ........................................................122 Transmission oil list ...................................................123