MacDon 9352c SP - Manual (Page 127)

Form # 147459 Issue 11/06 Web Rev_01 125
TROUBLE SHOOTING
SYMPTOM
PROBLEM SOLUTION REF.
One wheel does not pull
in forward or reverse
(continued). Speed-range control not
working. Check for faulty servo or
blockage in hose. *
High pressure relief
valve stuck open, dam-
aged seat. Check valve and clean
or replace. *
Failed pump, motor or
power hub. Repair or replace failed
component. *
With steering wheel
centered, one wheel
pulls more than the
other. Leakage at pump or
motor. Repair pump or motor. *
Faulty relief valve. Repair or replace valve. *
Excessive noise from
drive system. Hydraulic line clamps
loose. Tighten clamps. ---
Mechanical interference
in steering or ground
speed linkage. Adjust, repair, replace. ---
Brakes binding or not
releasing fully. Check pressure (min.
200 psi on brake
release valve. *
Faulty pump or motor. Repair or replace pump
or motor. *
Air in system. Check lines for leakage. *
Hydraulic oil filter leaks
at seal. Not properly tightened.
Damaged seal or
threads. Tighten filter element.
Replace filter or filter
head. ---
89
Steering and Ground Speed Controls
Machine will not steer
straight.
Linkage worn or loose. Replace worn parts,
adjust linkage. *
Machine moves on flat
ground with controls in
neutral. Neutral lock
misadjusted. See note
below. Adjust neutral lock. 97
Parking brake not
functioning. Adjust neutral lock,
check brake valve 97
*
Insufficient road speed. Speed-range control in
Field Position. Move to Road Position. 22
NOTE: A more complete Troubleshooting guide is given for the Neutral Lock & Steering on page 100.
* See your Windrower dealer.