Nanni N4.40, Workshop Manual

Page: 73 / 175

ENGINE
03-M-E3B, 03-M-DI-E3B, 03-M-E3BG, WSM
1-S3
The engine revolution
is not smooth The fuel filter is clogged or dirty Replace G-21
The air cleaner is clogged Clean or replace G-13,
G-20, G-25
Fuel leakage because of loose injection pipe
retaining nut Tighten the retaining
nut 1-S48
The injection pump is defective Repair or replace 1-S31,
1-S32,
1-S33,
1-S54,
1-S55,
1-S56
The nozzle injection pressure is incorrect Adjust (IDI) 1-S34,
1-S49
Repair or replace (DI) 1-S35,
1-S49
The injection nozzle is clogged Repair or replace 1-S34,
1-S35,
1-S49
The governor is defective Repair 1-S57,
1-S63
The turbocharger bearing is worn out Replace the
turbocharger
assembly 1-S47
The turbocharger shaft is bent Replace the
turbocharger
assembly 1-S47
The turbocharger fin or other part has a damage
because of unwanted materials Replace the
turbocharger
assembly 1-S47
The exhaust gas is
white or blue Too much engine oil Reduce it to the
specified level G-8
The piston ring and cylinder is worn out or the
piston ring cannot move Repair or replace 1-S22,
1-S23,
1-S65,
1-S66,
1-S67,
1-S68,
1-S90,
1-S91,
1-S97
The injection timing is incorrect Adjust 1-S28,
1-S30
There is oil leakage
into the exhaust pipe
or suction pipe The oil pipe is clogged or has a damage Repair or replace 1-S47
The piston ring seal of the turbocharger is
defective Replace the
turbocharger
assembly 1-S47
Symptom Probable Cause Solution
Reference
Page
KiSC issued 06, 2009 A