Multiquip DCA10SPX3 manual DCA-10SPX3 -TROUBLESHOOTING GENERATOR/ENGINE, Symptom, Possible Problem

DCA-10SPX3 —TROUBLESHOOTING (GENERATOR/ENGINE)

Practically all breakdowns can be prevented by proper handling and maintenance inspections, but in the event of a breakdown, please take a remedial action following the diagnosis based on the Generator Troubleshooting (Table 12)

information shown below and on the proceeding page. If the problem cannot be remedied, consult our company's business office or service plant.

TABLE 12. ENGINE & GENERATOR TROUBLESHOOTING

SYMPTOM	POSSIBLE PROBLEM	SOLUTION
	Dead Battery?	Replace Battery.
Engine fails to start and starter does	Defective Starter Switch?	Replace Switch.
not rotate.	Defective Starter?	Replace Starter.
	Fuse F5 Burned Out?	Replace Fuse.
	Broken Pre-Heat Circuit?`	Check Pre-Heat Circuit.
Engine fails to start and starter
	No Fuel?	Add Fuel.
rotates.
	Defective Wiring?	Check Wiring.
	Compression Leak?	Check/repair engine.
	Air in the fuel system?	Repair or Bleed.
Engine starts and engine remains at
	Clogged Fuel Strainer?	Clean or Replace.
low speed.
	Clogged Air Cleaner?	Clean or Replace.
	Disconnected Wiring?	Check and Repair Wiring.
	No Voltage Present in AC Power	Replace Rectifier (RE1).
	source
	Defective Rotor?	Replace Rotor.
Engine starts and engine speed rises
	Defective Automatic Voltage	Replace AVR.
and no voltage is present in AC
	Regulator?
power source.
	Disconnected Wiring?	Check and Repair Wiring.
	Layer Short-Circuit in armature	Replace Armature.
	winding?
	Defective Circuit Breaker (Protector)?	Replace Circuit Breaker (Protector).
Engine starts and engine speed rises
	Layer Short-Circuit, Broken Wires In	Repair or Replace Armature.
but AC power voltage is too low (or
	Armature Winding?
too high) or cannot be used.
	Voltage Regulator turned too low?	Adjust Voltage Regulator up.
Engine starts and engine speed rises	Defective Engine Regulator?	Replace Regulator.
but battery discharges excessively.	Defective Wiring?	Repair or Replace Wiring.
Engine starts and engine speed rises	Defective Alternator?	Repair or Replace Alternator.
and engine seems overloaded.
	Damaged Alternator Bearing?	Replace Alternator Bearings.

PAGE 44 — DCA-10SPX3 A.C. GENERATOR— PARTS & OPERATION MANUAL — REV. #2 (01/17/11)