1. TROUBLESHOOTING; [1] GENERAL; Probable Cause- Page 320

TRANSMISSION

L3560, L4060, L4760, L5060, L5460, L6060, WSM

3-S1

1. TROUBLESHOOTING

[1] GENERAL

Symptom

Probable Cause

Solution

Reference 

Page

Excessive 
Transmission Noise

Transmission fluid insufficient

Fill

G-9

Gear worn or backlash improper

Replace

3-S127

Bearing worn or broken

Replace

3-S123

Shift fork worn

Replace

3-S123

Spline worn

Replace

3-S123

Snap rings on the shaft come off

Repair or replace

–

Spiral bevel pinion lock nut improperly tightened

Tighten

3-S73

Improper backlash between spiral bevel pinion 

and spiral bevel gear

Adjust

3-S127

Improper backlash between differential pinion 

and differential side gear

Adjust

3-S129

Gear Slip Out of Mesh

Shift linkages rusted

Repair

–

Shifter or shift fork worn or damaged

Replace

3-S123

Shift fork interlock ball spring weaken or 

damaged

Replace

3-S62,

3-S81

Interlock ball fallen

Reassemble

3-S62,

3-S81

Synchronizer unit damaged

Replace

3-S124

Gears worn or broken

Replace

–

Hard Shifting

Shifter or shift fork worn or damaged

Replace

3-S123

Shift fork bent

Replace

3-S123

Shift linkage rusted

Repair

–

Shaft part of shift arms rusted

Repair

–

Synchronizer unit damaged

Replace

3-S124

Gears Clash When 
Shifting

Clutch does not release (Except HST)

Adjust or repair

G-20

Gears worn or damaged

Replace

–

Synchronizer unit damaged

Replace

3-S124

Differential Lock Can 
Not Be Set

Differential lock shift fork damaged

Replace

3-S75,

3-S94,

3-S120

Differential lock shift fork mounting clevis pin 

damaged

Replace

3-S75,

3-S94,

3-S120

Differential lock shifter pin bent or damaged

Replace

3-S75,

3-S94,

3-S120

Differential lock fork shaft bent or damaged

Replace

3-S75,

3-S94,

3-S120

KiSC issued 03, 2016 A