MacDon M155 2022 - Page 466

215676 446 Revision A
Problem Solution Reference
Low oil level in crankcase Add oil.
Adding Engine Oil, page 347
Improper type of oil in crankcase Drain and fill crankcase with proper oil.
8.2.3 Lubricants, Fluids, and
System Capacities, page 477
Worn components
Contact Dealer. Contact Dealer
Symptom: High oil consumption
Internal engine parts worn
Contact Dealer. Contact Dealer
Engine oil viscosity too low
Use recommended oil.
8.2.3 Lubricants, Fluids, and
System Capacities, page 477
Oil leaks
Check for leaks around gaskets, seals, and
drain plugs.
Checking Engine Oil Level, page
344
Symptom: Engine runs irregularly or stalls frequently
Erratic fuel supply
Change filter on fuel tank vent line.
Replace clogged fuel filter.
Replacing Fuel Tank Vent Filter,
page 355 and 5.9.5 Fuel System,
page 355
Water or dirt in fuel system Drain, flush, and fill fuel system.
8.2.3 Lubricants, Fluids, and
System Capacities, page 477
Low coolant temperature
Remove and check thermostat. Contact Dealer
Air in fuel system
Contact Dealer. Contact Dealer
Dirty or faulty injectors
Contact Dealer. Contact Dealer
Symptom: Lack of power
Engine timing incorrect
Contact Dealer. Contact Dealer
Engine oil viscosity too high
Use recommended oil.
8.2.3 Lubricants, Fluids, and
System Capacities, page 477
Intake air restriction Service air cleaner.
5.9.4 Air Intake System, page
348
Clogged fuel filter
Replace primary fuel filter, and if
necessary, replace secondary fuel filter.
Maintaining Fuel Filters, page
356
High exhaust back pressure
Clean out or replace muffler.
5.9.8 Inspecting Exhaust System,
page 381
Improper type of fuel in fuel tank Use proper fuel.
8.2.2 Fuel Specifications, page
476
Engine temperature is too low or too high
Remove and check thermostat. Contact Dealer
Improper valve clearance
Contact Dealer. Contact Dealer
Faulty fuel injectors
Contact Dealer. Contact Dealer
Symptom: Engine temperature below normal
Defective thermostat
Remove and check thermostat. Contact Dealer
Symptom: Warning alarm sounds
Engine overheated
Check coolant level.
Checking Coolant Level, page
368
Engine overheated
Check thermostat. Contact Dealer
Low engine oil pressure
Check oil level.
Checking Engine Oil Level, page
344
Low transmission oil pressure
Check oil level.
5.11.1 Checking and Filling
Hydraulic Oil, page 419
Symptom: Engine overheats
TROUBLESHOOTING