Multiquip PS403030, PS403020 MQ PS4030 SAW Troubleshooting, Symptom Possible Cause Solution

MQ PS4030 SAW — TROUBLESHOOTING

TABLE 12. TROUBLESHOOTING (ENGINE, CONTINUED)

SYMPTOM	POSSIBLE CAUSE	SOLUTION
		Clear air intake of dirt and debris.
	Intake air restricted?	Replace air cleaner elements as
		necessary.
"Weak in power" compression is proper	Improper fuel or contaminated fuel?	Flush fuel system if contaminated.
		Refill with clean fuel of prescribed
and does not misfire.		quality.
	Injection Line leaks?	Repair or replace lines.
	Charge air line leaking?	Repair or replace line.
	Water in fuel system?	Flush fuel system and replace with
		correct type fuel.
"Weak in power" compression is proper
	Ignition defective?	Replace ignition.
but misfires.
	Damage, or worn Injector orifices?	Clean or replace injectors.
	Wrong fuel type?	Flush fuel system, and replace with
		correct type of fuel.
		Clear air intake of dirt and debris.
	Intake air restricted?	Replace air cleaner elements as
Engine overheats.		necessary.
	Injection Valve defective?	Replace Injection valve.
	Cooling fins dirty?	Clean cooling fins.
	Oil level to low or too high?	Adjust oil to proper level.
	Governor adjusted correctly?	Adjust governor.
Rotational speed fluctuates.	Governor spring defective or missing?	Replace governor spring.
	Fuel flow restricted?	Check entire fuel system for leaks or
		clogs.
	Loose, damaged wiring?	Ensure tight, clean connections on
		battery and starter.
Starter malfunction.
	Battery insufficiently charged?	Recharge or replace battery.
	Starter damaged or internally shorted?	Replace Starter.

MQ PS4030 SAW • OPERATION MANUAL — REV. #0 (02/29/08) — PAGE 57