Multiquip DCA-100SSJU -TROUBLESHOOTING GENERATOR/ENGINE, Engine & Generator Troubleshooting

Table of Contents

DCA-100SSJU —TROUBLESHOOTING (GENERATOR/ENGINE)

Practically all breakdowns can be prevented by proper handling and maintenance inspections, but in the event of a breakdown, use the tables shown for diagnosis based on the Engine and Radiator Troubleshooting (Table 19) and the MPEC trouble shooting table (Table 20). If the problem cannot be remedied, consult our company's business office or service plant.

TABLE 19. ENGINE & GENERATOR TROUBLESHOOTING

SYMPTOM	POSSIBLE PROBLEM	SOLUTION
	Dead battery?	Replace battery.
Engine fails to start and starter
	Defective starter switch?	Replace switch.
does not rotated.
	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.
	Clogged fuel strainer?	Clean or replace.
Engine starts and remains at low
	Clogged air cleaner?	Clean or replace.
speed.
	Disconnected wiring?	Check and repair wiring.
	No voltage present in AC power	Replace rectifier (RE1).
	source?
	Defective rotor?	Replace rotor.
Engine speed rises and no voltage
	Defective voltmeter?	Replace voltmeter.
is present in AC power source.
	Disconnected wiring?	Check and repair wiring.
	Layer short-circuit in armature	Replace armature.
	winding?
Engine speed rises and AC power	Defective circuit breaker (protector)?	Replace circuit breaker (protector).
voltage is too low or cannot be	Layer short-circuit, broken wires in	Repair or replace armature.
used.
	armature winding?
Engine speed rises and battery	Defective engine regulator?	Replace regulator.
discharges too soon.	Defective wiring?	Repair or replace wiring.
Engine speed rises and engine	Defective alternator?	Repair or replace alternator.
seems overloaded.	Damaged alternator bearing?	Replace alternator bearings.

PAGE 58 — DCA-100SSJU — PARTS AND OPERATION MANUAL (STD) — REV. #2 (05/03/01)