MacDon M155 Operators Manual User Manual
Page 406
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 310
Engine overloaded
Reduce ground speed.
4.3.6 Windrower
Operation, page
111
Defective radiator cap
Replace cap.
Inspecting
Radiator Cap,
page 311
Defective fan belt
Replace belt.
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 315
Dirty radiator core
Clean radiator.
Cooling system dirty
Flush cooling system.
Engine Cooling
System, page 310
Defective thermostat
Remove and check thermostat.
Defective temperature gauge
or sender
Check coolant temperature with
thermometer. Replace gauge if
necessary.
Engine overheats
Defective water pump
Contact Dealer.
Contact Dealer.
Clogged or dirty air cleaner
Service air cleaner.
Engine overloaded
Reduce ground speed.
4.3.6 Windrower
Operation, page
111
Improper valve clearance
Engine out of time
Dirty injector nozzles
Contact Dealer.
Low engine temperature
Check thermostat.
Contact Dealer.
High fuel
consumption
Improper type of fuel
Use proper fuel.
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Revision A