MacDon M155 Operators Manual - Manual (Page 405)

TROUBLESHOOTING
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.
Air Intake System,
page 296
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.
Exhaust System,
page 322
Improper type of fuel Use proper fuel.
Fuel
Specifications,
page 262
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