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TESTING AND ADJUSTING
Remove excess oil or
use gear oil of proper
viscosity.
o
Replace.
Retighten. Replace
broken packings.
Oil leakage into
steering clutch case
results in slipping
clutch.
Steering clutch cylinder
Complaint
Possible cause
Remedy
Remarks
Clutch drags or grabs.
(1) Oil leaks inside cylinder
Repair or replace.
(2) Valve (plunger) and bore worn
Repair or replace.
~
(3) Relief valve out of adjustment
Adjust.
:
(4) Air leaks at pipe joints
o
Retighten.
Clutch slips, resulting in
Steering control valve defective
Repair or replace.
no power flow.
Final drives
Complaint
Possible cause
Remedy
Remarks
Noisy.
(1) Not enough gear oil, or dirty
Add or change.
After working ma
•
gear oil
chine on muddy or
flooded ground, check
.
oil for contamination
by examining oil
.
sampled out of drain
point.
(2) Backlash too large
Repair or replace.
Loose bearings or
worn shaft promotes
tooth wear, resulting
in excessive backlash.
~ (3) Worn or damaged shaft or
Repair or replace.
:
teeth
Overheating.
(1) Not enough gear oil, wrong
Add or change.
kind of oil or dirty oil
:
(2) Damaged bearings
Replace.
"Damage" here
~
means spalled or
chipped balls, rollers
~
or racewayS or
~
broken cages. Inspect..
~
bearings very care
fully, for bearing
.
trouble can result in
costly major repair.
Oil leakage.
(1) Too much gear oil, or oil
viscosity too low
(2) Faulty oil seals
(3) Bolts securing case or cover
loose, or packings broken
59
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