Troubleshooting - Kubota WSM STV32 Workshop Manual

STV32 · STV36 · STV40, WSM

1. TROUBLESHOOTING

Symptom
Engine Does Not Start A No fuel
(Starter Does Not
Run)
Probable Cause
A Air in the fuel system
A Water in the fuel system
A Fuel pipe clogged
A Fuel filter clogged
A Excessively high viscosity of fuel or engine oil
at low temperature
A Fuel with low cetane number
A Fuel leak due to loose injection pipe retaining
nut
A Incorrect injection timing
A Fuel camshaft worn
A Injection nozzle clogged
A Injection pump malfunctioning
A Seizure of crankshaft, camshaft, piston,
cylinder or bearing
A Compression leak from cylinder
A Improper valve timing
A Piston ring and cylinder worn
A Excessive valve clearance
A Battery discharged
A Starter malfunctioning
A Main switch malfunctioning
A Safety switch (clutch pedal, HST) improperly
adjusted or defective
A Starter relay defective
A PTO relay defective
A PTO clutch control switch engaged
A Fuse (30A, Starter) blown
A Wiring disconnected
Replenish fuel
Bleed
Change fuel and
repair or replace fuel
system
Clean
Clean or change
Use specified fuel
or engine oil
Use specified
fuel
Tighten retaining nut
Adjust
Replace
Clean
Replace
Repair or replace
Replace head gasket,
tighten cylinder head
screw, glow plug and
nozzle holder
Correct or replace
timing gear
Replace
Adjust
Charge
Repair or replace
Repair or replace
Repair or replace
Replace
Replace
Disengage
Replace
Connect
1-S1
ENGINE
Reference
Solution
Page
G-33
G-22
G-8
G-8
1-S27
1-S17
1-S37
1-S18
1-S31
1-S11
1-S36
1-S55, S61
1-S13
G-25, 26
9-S16
9-S8
9-S16, 17
9-S17
9-S18
G-34
KiSC issued 04, 2006 A