MacDon M150 SP - Manual (Page 215)

TROUBLESHOOTING
* See your MacDon dealer
** Refer to Windrower Technical Manual
Form 169017 / 169087 / 169095
213
Revision C
SYMPTOM PROBLEM SOLUTION
SECTION
M150 M200
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 7.9.6.1
7.9.6.2
Water or dirt in fuel system. Drain, flush, and fill system. 7.8.6.3 7.9.6.4
Air in fuel system. Contact MacDon Dealer. *
Low coolant temperature. Remove and check thermostat. **
Dirty or faulty injectors. Contact MacDon Dealer. *
Lack Of Power.
Incorrect timing. Contact MacDon Dealer. *
Engine oil viscosity too high. Use recommended oil. 7.3.1.3
Intake air restriction. Service air cleaner. 7.8.5.1 7.9.4.1
Clogged fuel filter.
Replace primary fuel filter, and if
necessary, replace secondary fuel filter.
7.8.6.2 7.9.6.2
High back pressure. Clean out muffler. 7.8.9 7.9.9
Improper type of fuel. Use proper fuel. 7.3.1.1
High or low engine temperature.
Remove and check thermostat.
See "Engine Overheats" below.
**
Improper valve clearance.
Contact MacDon Dealer. *
Faulty injectors.
Engine
Temperature
Below Normal.
Defective thermostat. Remove and check thermostat. *
Warning Alarm
Sounds.
Engine overheated.
Check coolant level. 7.8.7 7.9.7
Check thermostat. **
Low engine oil pressure.
Check oil level.
7.8.3 7.9.2
Low transmission oil pressure. 7.12.1
Engine
Overheats.
Low coolant level.
Fill reserve tank to proper level.
Check system for leaks.
7.8.7 7.9.7
Engine overloaded. Reduce ground speed. 6.3.6.2
Defective radiator cap. Replace cap. 7.8.7 7.9.7
Defective fan belt. Replace belt. 7.8.10.3 7.9.10.3
Dirty radiator screen:
• Rotors turning.
Check for obstructions in ducting from
screen to fan shroud.
7.10.1
• Rotors not turning. Check connections to rotor electric motor.
Dirty radiator core. Clean radiator. 7.10.2
Cooling system dirty. Flush cooling system. 7.8.7.3 7.9.7.3
Defective thermostat. Remove and check thermostat. **
Defective temperature gauge or
sender.
Check coolant temperature with
thermometer. Replace gauge if
necessary.
*
Defective water pump. Contact MacDon Dealer. *
Water only for coolant. Replace with antifreeze. 7.8.7 7.9.7
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