MacDon M105, Operator'S Manual

Page: 343 / 384

TROUBLESHOOTING
Symptom Problem Solution Section
One fi nal drive disengaged Engage fi nal drive.
Final Drives, page
115
Steering controls worn or
defective
Check GSL and steering for loose,
worn or damaged ball joints and
connecting rods.
5.7.3 Ground
Speed
Lever (GSL)
Adjustments, page
212
and
5.7.4 Steering
Adjustments, page
214
High pressure relief valve
stuck open, damaged seat
Check valve, and clean or replace.
Brakes binding or not
releasing fully Check pressure on brake release
valve) (min. 200 psi [1379 kPa]).
Pump arm or shaft is broken
Damaged hydraulic lines
preventing proper oil
fl ow
Ground speed range control
not working
One wheel does
not pull in forward
or reverse
Failed pump, motor or
power hub
Contact Dealer.
Contact Dealer.
Mechanical interference in
steering or ground speed
linkage
Adjust, repair, replace.
5.7.3 Ground
Speed
Lever (GSL)
Adjustments, page
212
and
5.7.4 Steering
Adjustments, page
214
Brakes binding or not
releasing fully
Check pressure on brake release
valve) (min. 200 psi [1379 kPa]).
Faulty pump or motor Contact Dealer.
Contact Dealer.
Air in system Check lines for leakage.
Excessive noise
from drive system
Hydraulic line clamps loose Tighten clamps.
—
Not properly tightened Tighten fi lter element.
Hydraulic oil fi lter
leaks at seal
Damaged seal or threads Replace fi lter or fi lter head.
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Revision A