wsm M7040 - Page 134

ENGINE
M6040, M7040, WSM
1-S2
Engine Revolution Is
Not Smooth
Fuel filter clogged or dirty Replace G-32
Air cleaner clogged Clean or replace G-24
Fuel leak due to loose injection pipe retaining nut Tighten retaining nut 1-S37
Injection pump malfunctioning Repair or replace 1-S20,
1-S49
Incorrect nozzle opening pressure Repair or replace 1-S21,
1-S37
Injection nozzle stuck or clogged Repair or replace 1-S21,
1-S37
Governor malfunctioning Repair 1-S44,
1-S45,
1-S46,
1-S47
Turbocharger bearing worn out Replace the
turbocharger
assembly
1-S35
Turbocharger shaft bent Replace the
turbocharger
assembly
1-S35
Turbocharger fin or other part damaged due to
foreign matters
Replace the
turbocharger
assembly
1-S35
Either White or Blue
Exhaust Gas Is
Observed
Excessive engine oil Reduce to specified
level
G-19
Piston ring and cylinder worn or stuck Repair or replace 1-S56,
1-S74,
1-S78
Incorrect injection timing Adjust 1-S19
Oil Leak into Exhaust
Pipe or Suction Pipe
Waste oil pipe clogged or deformed Repair or replace –
Turbocharger's piston ring seal faulty Replace the
turbocharger
assembly
1-S35
Either Black or Dark
Gray Exhaust Gas Is
Observed
Overload Reduce the load –
Low grade fuel used Use specified fuel G-10
Fuel filter clogged Replace G-32
Air cleaner clogged Clean or replace G-24
Deficient nozzle injection Repair or replace
nozzle
1-S21,
1-S37
Symptom Probable Cause Solution
Reference
Page
KiSC issued 07, 2012 A