Kubota SM-E3B Series - Servicing; 1. Troubleshooting

S-1
SM-E3B SERIES WSM
DIESEL ENGINE
1. TROUBLESHOOTING
W1046115
Symptom Probable Cause Solution
Reference
Page
Engine Does Not
Start
No fuel Replenish fuel G-11
Air in the fuel system Bleed G-11
Water in the fuel system Change fuel and
repair or replace fuel
system
–
Fuel hose clogged Clean or replace G-11
Fuel filter clogged Replace G-17
Excessively high viscosity of fuel or engine oil at
low temperature
Use specified fuel or
engine oil
5, G-9
Fuel with low cetane number Use specified fuel 5
Fuel leak due to loose injection pipe retaining nut Tighten retaining nut S-29
Incorrect injection timing Adjust S-17, 18
Fuel camshaft worn Replace S-41
Injection nozzle clogged Clean or replace S-20, 21
Injection pump malfunctioning Repair or replace S-19, 35,
36, 37
Seizure of crankshaft, camshaft, piston, cylinder
or bearing
Repair or replace S-40 to 48
S-64 to 71
Compression leak from cylinder Replace head
gasket, tighten
cylinder head screw,
glow plug and nozzle
holder
S-30, 31,
32
Improper valve timing Correct or replace
timing gear
S-40
Piston ring and cylinder worn Replace S-43, 44,
63
Excessive valve clearance Adjust S-14
Stop solenoid malfunctioning Replace S-26, 27,
29, 36
Starter Does Not Run Battery discharged Charge G-20
Starter malfunctioning Repair or replace S-29,
72 to 75
Wiring disconnected Connect –
Engine Revolution Is
Not Smooth
Fuel filter clogged or dirty Replace G-17
Air cleaner clogged Clean or replace G-14, 17,
22
Fuel leak due to loose injection pipe retaining nut Tighten retaining nut S-29
Injection pump malfunctioning Repair or replace S-19, 35,
36, 37
Incorrect nozzle injection pressure Adjust S-20
Injection nozzle stuck or clogged Repair or replace S-20, 21
Governor malfunctioning Repair S-41
KiSC issued 03, 2011 A