Multiquip DCA25SSIU manual DCA-25SSIU -TROUBLESHOOTING Engine, Engine Troubleshooting

DCA-25SSIU —TROUBLESHOOTING (ENGINE)

TABLE 14. ENGINE TROUBLESHOOTING (CONTINUED)

SYMPTOM	POSSIBLE PROBLEM	SOLUTION
	Fuel filter clogged or dirty?	Clean or change.
	Air cleaner clogged?	Clean or change.
	Fuel leak due to loose injection	Tighten nut.
	pipe retaining nut?
	Injection pump malfunctioning?	Repair or replace.
Engine revolution is not smooth.
	Incorrect nozzle opening	Adjust.
	pressure?
	Injection nozzle stuck or	Repair or replace.
	clogged?
	Fuel over flow pipe clogged?	Clean.
	Governor malfunctioning?	Repair.
	Excessive engine oil?	Reduce to the specified level.
	Piston ring and liner worn or	Repair or replace.
Either white or blue exhaust gas	stuck?
is observed.
	Incorrect injection timing?	Adjust.
	Deficient compression?	Adjust top clearance.
	Overload?	Lessen the load.
	Low grade fuel used?	Use the specified fuel.
Either black or dark gray exhaust
	Fuel filter clogged?	Clean or change.
gas is observed.
	Air cleaner clogged?	Clean or change.
	Deficient nozzle injection?	Repair or replace the nozzle.
	Incorrect injection timing?	Adjust.
	Engine's moving parts seem to	Repair or replace.
	be seizing?
Deficient output.	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.

PAGE 53 — DCA-25SSIU — PARTS AND OPERATION MANUAL (STD) — REV. #7 (04/18/12)