MacDon M155 - Page 448

TROUBLESHOOTING
Symptom
Problem
Solution Section
Low coolant level
Fill reserve tank to proper level.
Check system for leaks.
Water only for coolant Replace with antifreeze.
Engine Cooling
System, page 353
Engine overloaded Reduce ground speed.
Driving Fo rward
in Cab-Forward
Mode, page 168
Defective radiator cap Replace cap
.
Inspecting
Radiator Ca
p,
page 353
Defective fan belt
Replace belt
Replacing Fan
Belt, page 365
Replacing Fan
Belt, page 365
Dirty radiator screen, rotors
turning
Check for
obstructions in ducting from
screen to
fan shroud.
Dirty radiator screen, rotors
not turning
Check connections to rotor
electric motor.
Maintaining
Engine Cooling
Box, page 358
Dirty radiator core
Clean radiator.
Coolin
g system dirty Flush cooling system.
Engine Cooling
System, page 353
Defective thermostat
Remove and check thermostat.
Defective temperature gauge
or sender
Check co olant temperature with
thermometer. Replace gauge if
necessary.
Engine overheats
Def
ective water pump
Con
tact Dealer.
Contact Dealer
Clogged or dirty air cleaner Service air cleaner.
Air Intake System,
page 337
En
gine overloaded
Re
duce ground speed.
Dr
iving Fo rw ard
in
Cab-Forward
Mo
de, page 168
Improper valve clearance
E
ngine out of time
Dirty injector nozzles
C
ontact Dealer.
Low engine temperature Check thermostat.
Contact Dealer
H
igh fuel
c
onsumption
Improper type of fuel Use proper fuel.
8.2.2 Fuel
Specifications,
page 465
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