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SYMPTOM
One Wheel Does Not Pull In
Forward Or Reverse
(Continued).
With Steering Wheel Centered,
One Wheel Pulls More Than The
Other.
Excessive Noise From Drive
System.
Hydraulic Oil Filter Leaks At
Seal.
8.6 STEERING AND GROUND SPEED CONTROL
SYMPTOM
Machine Will Not Steer Straight.
Machine Moves On Flat Ground
With Controls In Neutral.
Insufficient Road Speed.
Steering Wheel Will Not Lock
With GSL In N-DETENT.
Steering Wheel Will Not Unlock.
Steering Is Too Stiff Or Too
Loose
*
See your MacDon dealer
** Refer to Windrower Technical Manual
Form # 169017
TROUBLESHOOTING
PROBLEM
High pressure relief valve stuck
open, damaged seat.
Failed pump, motor or power hub.
Leakage at pump or motor.
Wheels not in same speed range.
Faulty relief valve.
Hydraulic line clamps loose.
Mechanical interference in steering
or ground speed linkage.
Brakes binding or not releasing fully. Check pressure (min. 200 psi on
Faulty pump or motor.
Air in system.
Not properly tightened.
Damaged seal or threads.
PROBLEM
Linkage worn or loose.
Neutral interlock misadjusted.
Parking brake not functioning.
GSL servo misadjusted.
GSL cable misadjusted.
Speed-range control in field
position.
Transmission interlock misadjusted.
Transmission interlock cylinder not
working.
Steering chain tension is out of
adjustment.
206
SOLUTION
Check valve and clean or
replace.
Contact MacDon dealer.
Contact MacDon dealer.
Repair or replace valve.
Tighten clamps.
Adjust, repair, replace.
brake release valve.
Contact MacDon dealer.
Check lines for leakage.
Tighten filter element.
Replace filter or filter head.
SOLUTION
Adjust steering chain tension.
Replace worn parts, adjust
linkage.
Contact MacDon dealer.
Move to road position.
Contact MacDon dealer.
Adjust steering chain tension
Issue – June 2008
SECTION
**
*
*
7.13.6.2
---
7.8.3 &
7.8.4
**
*
---
7.13.4
7.13.4
SECTION
7.8.4.2
7.8.4.1
*
6.3.8.1
*
7.8.4.2
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