MacDon M105 Operator's Manual page 342

Symptom Problem
Pump arms have broken shaft
or loose hardware
Brakes binding or not
releasing fully
Low oil level
Final drives (power hubs)
disengaged
Damaged hydraulic lines
preventing proper oil flow
Both wheels will
Ground speed range control
not pull in forward
not working
or reverse
Steering controls worn or
defective
Charge pressure relief valve
misadjusted or damaged
Failed pump or motor
169890
TROUBLESHOOTING
Solution
Repair or tighten.
Check pressure on brake release
valve (min. 200 psi [1379 kPa]).
Check oil reservoir level.
Engage final drives.
Replace damaged lines.
Contact Dealer.
Check GSL and steering for loose,
worn or damaged ball joints and
connecting rods.
Check the valve adjustment. Check
valve parts and seat.
Contact Dealer.
328
Section
Contact Dealer.
Checking and
Filling Hydraulic
Oil, page 288
Final Drives, page
115
Contact Dealer.
5.7.3 Ground
Speed
Lever (GSL)
Adjustments,
and
page 212
5.7.4 Steering
Adjustments, page
214
Checking Charge
Pump Pressure,
page 297
Contact Dealer.
Revision A