Amadas 9980 - Machine Troubleshooting; Hydrostatic Ground Drive

9980 Self-Propelled Peanut Combine Troubleshooting
Machine Troubleshooting
Hydrostatic Ground Drive
PROBLEM CAUSE CORRECTION
Speed range selector will not
go in reverse.
Bent or broken parts in control
linkage.
Repair or replace as required.
Frozen or worn ball joints on
control cable.
Lubricate or replace.
Bell crank or pivots binding. Lubricate or replace.
Control cable kinked or
frozen.
Replace if needed.
System overheats. Oil cooler or radiator plugged.
Blow air through core and
clean.
Lack of charge oil flow.
See your AMADAS/John
Deere dealer.
Engine fan belt slipping or
broken.
Check for worn or broken belt.
Plugged oil filter. Change filter.
Exceeding relief valve
pressure.
Shift to lower gear.
Relief valve stuck closed.
See your AMADAS/John
Deere dealer.
By-pass valve fails to close.
See your AMADAS/John
dealer.
High oil loss.
Loose connections or leaking
hydraulic lines, hoses, or O-
rings.
Tighten connections or
replace damaged lines, hoses
or O-rings.
Oil leaking into PTO gearbox.
Replace hydrostatic pump
shaft seal.
MAN141 09/08/15 343