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 TROUBLE-SHOOTING GUIDE
CAUSE
INDICATED BY
REMEDY
EXCESSIVE ENGINE NOISE:
1
Worn or damaged engine
-
Inspect and replace damaged
components
parts. Refer to engine manual
2. Engine mounts
-
Inspect and replace damaged
engine mounts. Torque
fasteners
3. Loose or worn fan belts
-
Replace or adjust belts
EXCESSIVE ENGINE
VIBRATION:
1. Faulty vibration mounts
-
Inspect and replace mounts if
necessary
2. Unbalanced or loose flywheel
-
Tighten flywheel
ENGINE SMOKES:
1. Insufficient air
Black or gray smoke
Check for intake restriction
2. Insufficient fuel
Black or gray smoke
a) Check for fuel line
restriction
b) Refer to engine manual
3. Restriction in exhaust
Black or gray smoke
Inspect and correct
4. Excess lubrication oil
White or blue smoke
Remove extra oil
LOW ENGINE OIL
PRESSURE:
1. Defective oil pressure gauge
-
Install new gauge
2. Insufficient oil flow
-
a) Check oil filter, changing
if necessary
b) Oil suction line restriction
c) Low in crankcase oil
d) Wrong grade of oil for
weather conditions
3. Diesel fuel in lubrication oil
-
Locate and correct leak.
Change lubrication oil and
filter
4. Oil pump malfunction
-
a) Replace oil pump suction
pipe
b) Clean or repair oil pump
relief valve
c) Repair or replace oil pump
5. Cooling system malfunction
a) Insufficient coolant
Check coolant level, adding if
necessary
b) Dirty radiator
Steam clean radiator
c) Dirty engine
Steam clean engine exterior
d) Loose or worn fan belts
Replace or adjust fan belts
Rev.760501
400-5.2
K300
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