Challenger Techstar CVT MT525B Series, Operators Instruction Book

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8 . TROUBLESHOOTING
8.5 Challenger MT500B EU
8
The following pages detail the most common problems relating to diagnostics procedures for engine and transmission mal-
function. If it is not possible to solve problems concerning hydraulic and transmission parts by applying the lubrication,
maintenance and adjustment procedures set out in this Book, the most simple solution is to consult your Dealer.
8.1 - ENGINE TROUBLESHOOTING
8.1.1 - Engine will not run
Clutch not disengaged. Clutch must be disengaged to acti-
vate the safety start switch.
Batteries flat or low in power. Recharge or replace them.
Battery cables loose, broken or rusted through. Clean,
tighten or replace cables.
Starter or engine contact malfunctioning. Consult your
Dealer.
8.1.2 - Engine runs but will not start
Injection pump solenoid cannot open injection pump.
Fuel tanks empty. Check fuel level before trying to start en-
gine.
Pipes clogged. Remove and clean pipes.
Fuel used is too viscous. High viscosity fuel thickens in cold
weather. Use lower viscosity fuel.
Cetane number of fuel used is too low. See fuel specifica-
tions.
Air in fuel pipes. See Bleeding section in Chapter 5.
Fuel filter clogged. Replace parts.
Start-up speed too low. Batteries must be in good condi-
tion to ensure engine start-up, especially in cold weather.
Engine start-up may be malfunctioning.
Compression low. Consult your Dealer.
8.1.3 - Engine starts but will not run at full power
Throttle link on injection pump misadjusted.
GSPTO too fast. Set transmission to a lower speed to avoid
engine overload.
Fuel tank vent clogged. Consult your Dealer.
Fuel filter clogged. Replace the filter.
Fuel type incorrect. See specifications.
Fuel used is too viscous. In cold weather, high viscosity
fuel might not pass through the pipes.
Air leak in fuel pipes. Consult your Dealer.
Exhaust silencer clogged. Replace it.
Ignition misadjusted. Consult your Dealer.
Air intake clogged. Clean it. Inspect air purifier.
The air purifier dirty. Inspect air purifier.
Engine runs but overheats. Consult your Dealer.
Transmission clutch slips. Consult your Dealer.
8.1.4 - Engine overheating
Coolant level too low. See Expansion tank section in Chap-
ter 5.
Radiator hose clogged or sagging. Replace hose.
Temperature gauge malfunctioning. Consult your Dealer.
Fan belt slack or frayed. See Ventilator belt section in Chap-
ter 5.
Thermostat malfunctioning - replace it. DO NOT RUN EN-
GINE WITHOUT WORKING THERMOSTAT.
Engine oil level too low. Top up level.
Engine oil too thick. Use recommended oil type.
Tractor overloaded. Shift to lower transmission speed.
Fuel dirty. See fuel specifications.
Injection pump timing incorrect. Consult your Dealer.
Exhaust silencer blocked. Replace it.
Water pump malfunctioning. Consult your Dealer.
8.1.5 - Excessive fuel consumption
Air intake clogged or air purifier blocked. See Maintenance
Chapter.
Fuel pipes leaking. Block leaks.
Injection pump timing incorrect. Consult your Dealer.
Fuel type incorrect. See fuel specifications.
Engine overloaded. To save fuel, engine load should not ex-
ceed nominal values.
8.1.6 - Overconsumption of oil
Oil drain plug loose. Tighten it.
Seal leaks. Replace seal.
The oil number incorrect. See Chapter 5.
Engine sump oil diluted. Consult your Dealer.
Engine overheating. Find cause of overheating.
Oil pressure too high. Consult your Dealer.
Piston rings not fitted or worn. Consult your Dealer.
8.1.7 - Engine misfiring
The injector nozzles dirty or misadjusted. Consult your
Dealer.
Valves burnt out or seized up. Consult your Dealer.
8.1.8 - Engine speed irregular
Transmission clutch slips. See Clutch Adjustment section.
Regulator slow. Consult your Dealer.