Troubleshooting - Kubota SM-E3B Series Workshop Manual

SM-E3B SERIES WSM

1. TROUBLESHOOTING

Symptom
Engine Does Not
Start
Starter Does Not Run
Engine Revolution Is
Not Smooth
Probable Cause
No fuel
Air in the fuel system
Water in the fuel system
Fuel hose clogged
Fuel filter clogged
Excessively high viscosity of fuel or engine oil at
low temperature
Fuel with low cetane number
Fuel leak due to loose injection pipe retaining nut
Incorrect injection timing
Fuel camshaft worn
Injection nozzle clogged
Injection pump malfunctioning
Seizure of crankshaft, camshaft, piston, cylinder
or bearing
Compression leak from cylinder
Improper valve timing
Piston ring and cylinder worn
Excessive valve clearance
Stop solenoid malfunctioning
Battery discharged
Starter malfunctioning
Wiring disconnected
Fuel filter clogged or dirty
Air cleaner clogged
Fuel leak due to loose injection pipe retaining nut
Injection pump malfunctioning
Incorrect nozzle injection pressure
Injection nozzle stuck or clogged
Governor malfunctioning
Replenish fuel
Bleed
Change fuel and
repair or replace fuel
system
Clean or replace
Replace
Use specified fuel or
engine oil
Use specified fuel
Tighten retaining nut
Adjust
Replace
Clean or replace
Repair or replace
Repair or replace
Replace head
gasket, tighten
cylinder head screw,
glow plug and nozzle
holder
Correct or replace
timing gear
Replace
Adjust
Replace
Charge
Repair or replace
Connect
Replace
Clean or replace
Tighten retaining nut
Repair or replace
Adjust
Repair or replace
Repair
S-1
DIESEL ENGINE
Reference
Solution
Page
G-11
G-11
–
G-11
G-17
5, G-9
5
S-29
S-17, 18
S-41
S-20, 21
S-19, 35,
36, 37
S-40 to 48
S-64 to 71
S-30, 31,
32
S-40
S-43, 44,
63
S-14
S-26, 27,
29, 36
G-20
S-29,
72 to 75
–
G-17
G-14, 17,
22
S-29
S-19, 35,
36, 37
S-20
S-20, 21
S-41
W1046115
KiSC issued 03, 2011 A