MacDon 9250 Operator's Manual page 124

SYMPTOM
Engine runs irregularly
or stalls frequently.
Lack of power.
Engine temperature
below normal.
* See your Windrower dealer.
Form # 46584
TROUBLE SHOOTING
PROBLEM
Unsteady fuel supply.
Water, dirt or air in fuel
system.
Low coolant
temperature.
Dirty or faulty injectors.
Incorrect timing.
Engine oil viscosity too
high.
Intake air restriction.
Clogged fuel filter.
High back pressure.
Improper type of fuel.
High or low engine
temperature.
Improper valve
clearance.
Faulty injectors.
Defective thermostat.
122
SOLUTION
Change filter on fuel
tank vent line. Replace
clogged fuel filters.
Drain, flush, fill and
bleed system.
Remove and check
thermostat.
Clean or replace
injectors.
Time injection pump.
Use recommended oil.
Service air cleaner.
Replace fuel filter.
Clean out muffler (N.A.
engine).
Use proper fuel.
Remove and check
thermostat. See "Engine
Overheats".
Set valve clearance.
Clean or replace
injectors.
Remove and check
thermostat.
Issue 11/06 Web Rev_01
REF.
71
74
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60
69
73
76
59
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