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DCA-600SSV — OPERATION AND PARTS MANUAL — REV. #0 (07/13/09) — PAGE 57
DCA-600SSV — TROUBLESHOOTING (ENGINE)
TABLE 18. ENGINE TROUBLESHOOTING (CONTINUED)
SYMPTOM POSSIBLE PROBLEM SOLUTION
Engine revolution is not
smooth.
Fuel filter clogged or dirty? Clean or change.
Air cleaner clogged? Clean or change.
Fuel leak due to loose injection
pipe retaining nut?
Tighten nut.
Injection pump malfunctioning? Repair or replace.
Incorrect nozzle opening
pressure?
Adjust.
Injection nozzle stuck or
clogged?
Repair or replace.
Fuel over flow pipe clogged? Clean.
Governor malfunctioning? Repair.
Either white or blue exhaust gas
is observed.
Excessive engine oil? Reduce to the specified level.
Piston ring and liner worn or
stuck?
Repair or replace.
Incorrect injection timing? Adjust.
Deficient compression? Adjust top clearance.
Either black or dark gray
exhaust gas is observed.
Overload? Lessen the load.
Low grade fuel used? Use the specified fuel.
Fuel filter clogged? Clean or change.
Air cleaner clogged? Clean or change.
Deficient nozzle injection? Repair or replace the nozzle.
Deficient output.
Incorrect injection timing? Adjust.
Engine's moving parts seem to
be seizing?
Repair or replace.
Uneven fuel injection? Repair or replace the injection pump.
Deficient nozzle injection? Repair or replace the nozzle.
Compression leak?
Replace head gasket, tighten cylinder head bolt, glow plug and
nozzle holder.