215676
453
Revision A
Problem
Solution
Reference
Charge pressure relief valve misadjusted
or damaged
Check the valve adjustment. Check valve
parts and seat.
Checking Charge Pump Pressure,
page 429
Failed pump or motor
Contact Dealer.
Contact Dealer
Symptom: Excessive noise from drive system
Mechanical interference in steering or
ground speed linkage
Adjust, repair, and replace.
5.6.3 Ground Speed Lever
Adjustments, page 327
and
Steering Adjustments, page 329
Brakes binding or not releasing fully
Check pressure on brake release valve
(min. 1379 kPa [200 psi]).
Contact Dealer
Faulty pump or motor
Contact Dealer.
Contact Dealer
Air in system
Check lines for leakage.
—
Hydraulic line clamps loose
Tighten clamps.
—
Symptom: One wheel does not pull in forward or reverse
Broken pump arm or shaft
Contact Dealer.
Contact Dealer
One final drive disengaged
Engage final drive.
Engaging and Disengaging
Wheel Drives, page 189
Steering controls worn or defective
Check GSL and steering for loose, worn,
or damaged ball joints and
connecting rods.
5.6.3 Ground Speed Lever
Adjustments, page 327
and
Steering Adjustments, page 329
High pressure relief valve stuck open,
damaged seat
Check valve, and clean or replace.
Contact Dealer
Brakes binding or not releasing fully
Check pressure on brake release valve
(min. 1379 kPa [200 psi]).
Contact Dealer
Damaged hydraulic lines preventing
proper oil flow
Contact Dealer.
Contact Dealer
Ground speed range control not working
Contact Dealer.
Contact Dealer
Failed pump, motor, or power hub
Contact Dealer.
Contact Dealer
Symptom: Hydraulic oil filter leaks at seal
Not properly tightened
Tighten filter element.
5.11.4 Changing Hydraulic Oil
Filters, page 421
Damaged seal or threads
Replace filter or filter head.