Amadas 9980 - Page 362

Troubleshooting 9980 Self-Propelled Peanut Combine
Engine
PROBLEM CAUSE CORRECTION
Engine overheats. Low coolant level.
Fill radiator with coolant to the
correct level. Check hoses
and radiator for leaks or loose
connections.
Dirty cooling system radiator
core or rotary cooling screen.
Clean radiator and rotary
screen.
Rotary cooling screen not
turning.
Broken drive belt.
Belt off sheaves.
Rotary cooling screen not
turning.
Broken drive belt.
Loose or broken fan belt. Replace worn belt.
Cooling system needs
flushing.
Drain and flush cooling
system.
Defective thermostats.
See your AMADAS/John
Deere dealer.
Vacuum duct plugged. Clean duct.
Faulty radiator cap.
See your AMADAS/John
Deere dealer.
Defective temperature gauge
or sender.
See your AMADAS/John
Deere dealer.
Low oil pressure. Low oil level.
Check crankcase oil level and
add oil if needed.
Incorrect type of oil.
Drain, fill crankcase with
correct quality and viscosity of
oil.
Oil cooler plugged.
See your AMADAS/John
Deere dealer.
350 09/08/15 MAN141