Troubleshooting - Kubota WSM L3560 Workshop Manual

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

1. TROUBLESHOOTING

COMPRESSOR
Symptom
Noisy
(Compressor ON)
Noisy
(Compressor OFF)
AIR CONDITIONING SYSTEM
Symptom
Does Not Cool
(No Air Flow)
Does Not Cool
(Compressor Does
Not Rotate)
Does Not Cool
(Others)
Insufficient Cooling
(Insufficient Air Flow)
Insufficient Cooling
(Many Bubbles in
Sight Glass)
Insufficient Cooling
(No Bubbles in Sight
Glass)
Probable Cause
Bearing of compressor worn or damaged
Valves in compressor damaged
Belt slipping
Compressor bracket mounting screws loosen
Piping resonant
Blower damaged
Bearings of magnetic clutch, idle pulley or crank
pulley worn or damaged
Probable Cause
Fuse blown
A/C compressor relay damaged
A/C blower motor damaged
A/C blower switch damaged
Wiring harness disconnected or improperly
connected
Fuse blown
Magnetic clutch damaged
A/C switch damaged
Pressure switch damaged
Belt slipping
Insufficient refrigerant
Expansion valve damaged
Compressor damaged
Air filter clogged
Evaporator frosted
A/C blower motor damaged
A/C blower resistor damaged
Insufficient refrigerant
Gas leaking from some place in refrigerating
cycle
Air mixed in
Too much refrigerant
Replace
Replace
Adjust or replace
Tighten
Tighten or add clamp
Repair or replace
Replace
Replace
Replace
Replace
Replace
Repair
Replace
Repair or replace
Replace
Replace
Adjust or replace
Check with manifold
gauge
Replace
Replace
Clean or replace
Clean or replace
thermo switch
Replace
Replace
Check with manifold
gauge
Repair and charge
refrigerant
Check with manifold
gauge
Check with manifold
gauge
10-S1
CABIN
Reference
Solution
Page
10-S45
10-S45
G-29
–
–
–
10-S45
Reference
Solution
Page
G-45
10-S29
10-S27
10-S23
–
G-45
10-S22
10-S24
10-S30
G-29
10-S13
–
10-S45
G-30
–
10-S27
10-S26
10-S13
10-S19
10-S13
10-S13
KiSC issued 03, 2016 A