82410 • 82710 • 82910 WSM,
12271
TROUBLESHOOTING
1 ENGINE
Symptom
Probable Cause Solution
Reference
Page
Engine Does Not
• No fuel
Replenish fuel
-
Start
• Air
in
the fuel system
Bleed
G-28
• Water
in
the fuel system
Change fuel and
-
repair
or
replace fuel
system
• Fuel pipe clogged
Clean
-
• Fuel filter clogged
Change G-20
• Excessively high viscosity of fuel or engine oil
Use specified fuel or G-8
at low temperature
engine oil
• Fuel with low cetane number
Use specified fuel G-8
• Fuel leak due to loose injection pipe retaining
Tighten retaining nut
1-818
nut
• Incorrect injection timing
Adjust
1-853
• Fuel camshaft worn
Replace
1-824
• Injection nozzle clogged
Clean
1-855
• Injection pump malfunctioning
Repair or replace
1-824
• Seizure of crankshaft, camshaft, piston,
Repair or replace
1-828,831
cylinder or bearing
• Compression leak from cylinder
Replace head
1-820
gasket, tighten
cylinder head screw,
glow plug and nozzle
holder
• Improper valve timing
Correct or replace
1-826
timing gear
• Piston ring and cylinder worn
Replace
1-829
• Excessive valve clearance
Adjust
1-817
• Battery discharged
Charge
9-85
(Starter Does Not
• Starter malfunctioning
Repair or replace
9-S11
Run)
• Main switch malfunctioning
Repair or replace
9-87
• The movement of poppet (safety switch of
Range gear shift
9-M7
range gear shift)
is
heavy (In winter, oil
lever is moved
viscosity increase) (B271 0 Affected Serial No.:
several times
below 15496)
• Safety switches malfunctioning Adjust or replace
9-810
• Wiring disconnected
Connect
-
Engine Revolution Is
• Fuel filter clogged or dirty
Change
G-20
Not Smooth
• Air cleaner clogged
Clean
or
replace
G-20
• Fuel leak due to loose injection pipe retaining Tighten retaining nut
1-818
nut
• Injection pump malfunctioning
Repair or replace
1-824
• Incorrect nozzle injection pressure
Adjust
1-855
• Injection nozzle stuck or clogged
Repair or replace
1-856
• Governor malfunctioning
Repair
1-826
Either White or Blue • Excessive engine oil
Reduce to specified
G-12
Exhaust Gas
Is
level
Observed
• Piston ring and cylinder worn or stuck
Repair or replace
1-829
• Incorrect injection timing
Adjust
1-853
• Deficient compression
Adjust top clearance 1-816
12271810010
1-81
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