TROUBLESHOOTING
* See Your MacDon Dealer
** Refer to Windrower Technical Manual
Form 169552 / 169554 / 169555
185
Revision A
SYMPTOM
PROBLEM
SOLUTION
SECTION
Engine Runs
Irregularly or
Stalls Frequently.
Unsteady fuel supply.
Change filter on fuel tank vent line.
Replace clogged fuel filter.
7.8.6.1
7.8.6.2
Water or dirt in fuel system.
Drain, flush, and fill system.
7.8.6.3
Low coolant temperature.
Remove and check thermostat.
**
Air in fuel system.
Contact your Dealer.
*
Dirty or faulty injectors.
Lack Of Power.
Incorrect timing.
Improper valve clearance.
Faulty injectors.
Engine oil viscosity too high.
Use recommended oil.
7.3.2.3
Intake air restriction.
Service air filter/cleaner.
7.8.5.1
Clogged fuel filter.
Replace primary fuel filter and if necessary,
replace secondary fuel filter.
7.8.6.2
High back pressure.
Clean out muffler.
7.8.9
Improper type of fuel.
Use proper fuel.
7.3.2.1
High or low engine temperature.
Remove and check thermostat. See "Engine
Overheats" in Technical Manual.
**
Engine
Temperature
Below Normal.
Defective thermostat.
Remove and check thermostat.
*
Warning Alarm
Sounds.
Engine overheated.
Check coolant level.
7.8.7
Check thermostat.
**
Low engine oil pressure.
Check oil level.
7.8.3
Low transmission oil pressure.
7.11.1
Engine
Overheats.
Low coolant level.
Fill reserve tank to proper level.
Check system for leaks.
7.8.7
Water only for coolant.
Replace with antifreeze.
Engine overloaded.
Reduce ground speed.
6.3.6
Defective radiator cap.
Replace cap.
7.8.7.2
Defective fan belt.
Replace belt.
7.8.10.3
Dirty radiator screen:
•
Rotors turning
Check for obstructions in ducting from
screen to fan shroud.
7.9.1
•
Rotors not turning
Check connections to rotor electric motor.
Dirty radiator core.
Clean radiator.
7.9.3
Cooling system dirty.
Flush cooling system.
Defective thermostat.
Remove and check thermostat.
**
Defective temperature gauge or sender. Check coolant temperature with
thermometer. Replace gauge if necessary.
*
Defective water pump.
Contact your Dealer.
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