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Insufficient or excessive
lubrication oil
Lubricating oil deteriorated
Add or drain off lubricating oil to the
specified level
Renew lubricating oil
5.2.4
Traveling and steering system
Troubles & possible causes
Fixing methods
1.
Front-wheel wobble
Excessive clearance of front
wheel bearing or kingpin
bush worn out excessively
Wrongly adjusted toe-in
Ball pin or its seat worn
out excessively
Pitman arm and ball pin fixing
nut become loose
2.
Premature wearing of front
wheel tires
Wrongly adjusted toe-in
Front wheel pressure
insufficient
Adjust bearing clearance or replace
kingpin bush with a new one
Readjust toe-in
Replace ball pin or its seat with a new one
Check and tighten the nut
Readjust toe-in
Inflate tires to specified pressure