MacDon M155 Operators Manual User Manual
Page 405
Symptom
Problem
Solution
Section
Incorrect timing
Contact Dealer.
Contact Dealer.
Engine oil viscosity too high
Use recommended oil.
Lubricants, Fluids,
and System
Capacities, page
263
Intake air restriction
Service air cleaner.
Clogged fuel filter
Replace primary fuel filter, and if
necessary, replace secondary fuel
filter.
Maintaining Fuel
Filters, page 304
High back pressure
Clean out or replace muffler.
Improper type of fuel
Use proper fuel.
High or low engine
temperature
Remove and check thermostat.
Improper valve clearance
Lack of power
Faulty injectors
Contact Dealer.
Engine
temperature below
normal
Defective thermostat
Remove and check thermostat.
Contact Dealer.
Check coolant level.
Checking Coolant
Level, page 312
Engine overheated
Check thermostat.
Contact Dealer.
Low engine oil pressure
Checking Engine
Oil Level, page
293
Warning alarm
sounds
Low transmission oil pressure
Check oil level.
Checking and
Filling Hydraulic
Oil, page 360
169883
389
Revision A