Troubleshooting - Kubota M6800S Workshop Manual

M6800 · M6800S · M8200 · M9000, WSM

1. TROUBLESHOOTING

Symptom
Front Wheels
Wander to Right or
Left
Front Wheels Can
Not Be Driven [4WD
Type]
Noise
[4WD Type]
Probable Cause
• Tire pressure uneven
• Improper toe-in adjustment (improper
alignment)
• Clearance between front axle case boss and
front axle bracket (front, rear) bushing
excessive [4WD Type]
• Front axle rocking force too small
• Front wheel sway excessive
• Tie-rod end loose
• Air sucked in power steering circuit
• Knuckle shaft bushings worn [2WD Type]
• Propeller shaft broken
• Front wheel drive gears in transmission
broken
• Front differential gear broken
• Shift fork broken
• Coupling displaced
• Gear backlash excessive
• Oil insufficient
• Bearings damaged or broken
• Gears damaged or broken
Adjust
Adjust
Replace
Adjust
Replace
Tighten
Bleed
Replace
Replace
Replace
Replace
Replace
Reassemble
Adjust or replace
Replenish
Replace
Replace
6-S1
FRONT AXLE
Reference
Solution
Page
G-58
6-S6
6-S20
6-S7
6-S6
6-S11, S12
7-S8
6-S18
6-S9
–
6-S17, S19,
S20
–
6-S9
–
G-11
–
–
W1014322
KiSC issued 03, 2008 A