ELECTRICAL SYSTEM
L3560, L4060, L4760, L5060, L5460, L6060, WSM
9-S1
1. TROUBLESHOOTING
BATTERY
STARTING SYSTEM
OPC SYSTEM
Symptom Probable Cause Solution
Reference
Page
All Electrical
Equipment Do Not
Operate
Battery discharged or damaged Recharge or replace 9-S12
Battery positive cable disconnected or improperly
connected
Repair or replace –
Battery negative cable disconnected or
improperly connected
Repair or replace –
Slow blow fuse blown Replace 9-S34
Fuse Blown
Frequently
Short-circuited Repair or replace –
Symptom Probable Cause Solution
Reference
Page
Battery Discharges
Too Quickly
Battery damaged Replace 9-S11
Alternator damaged Repair or replace 9-S91
IC Regulator damaged Replace 9-S92
Wiring harness disconnected or improperly
connected
Repair or replace –
Cooling fan belt slipping Adjust tension G-28
Symptom Probable Cause Solution
Reference
Page
Starter Motor Does
Not Operate
Battery discharged or damaged Recharge or replace 9-S12
Slow blow fuse blown Replace 9-S34
Safety switch improperly adjusted or damaged Repair or replace 9-S62
Wiring harness disconnected or improperly
connected
Repair or replace –
Starter motor damaged Repair or replace 9-S91
Main switch damaged Replace 9-S60,
9-S61
Starter relay damaged Replace 9-S66
PTO switch damaged Replace 9-S62
Glow Lamp Does Not
Light
Coolant temperature sensor damaged Replace 9-S74
Main switch damaged Replace 9-S60,
9-S61
Glow relay damaged Repair or replace –
Electronic instrument panel damaged Replace 9-S15
Symptom Probable Cause Solution
Reference
Page
Does Not Stop
Engine
OPC system electrical part damaged Inspect or replace
safety switch
–