Ingersoll-Rand QS1L, QS1T manual Trouble Probable Cause Solution, Tool on

MAINTENANCE (Continued)

TROUBLESHOOTING GUIDE

Trouble	Probable Cause		Solution
Loss of Power	Low air pressure	Check air supply. For top performance, the air pres-
		sure must be 90 psig (6.2 bar/620 kPa) at the inlet.
	Plugged Inlet Bushing Screen	Clean the Inlet Bushing Screen using a clean, suitable
		cleaning solution. If the Screen cannot be cleaned,
		replace it.
	Worn or broken Vanes	Replace a complete set of Vanes.
	Worn or broken Cylinder	Replace the Cylinder if it is cracked or if the bore
		appears wavy or scored.
	Exhaust control restricted	Make certain the Exhaust Diffuser against the Back
		Cap is in the fully open position.
	Shutoff Valve too short	Lengthen the Shutoff Valve. Refer to “TESTING
		THE TOOL” on page 37
Motor won’t run	Motor Clamp Washer binding	Remove the Gear Case make certain the Washer is
		flat and the Motor Seal is properly positioned.
	Gears binding	Clean and inspect all gearing. Replace any worn or
		damaged gearing.
	Push Rod worn	Install a new Push Rod.
Gear Case gets hot	Excessive grease	Clean and inspect Gear Case and gearing parts and
		lubricate as instructed.
	Worn or damaged parts	Clean and inspect the gear Case and Gearing.
		Replace worn or broken components.
Inconsistent disengagement of	Improper lubrication	Remove the Adjustable Clutch mechanism and exam-
the Adjustable Clutch		ine the parts. Lubricate as instructed.
	Wrong Clutch Spring (using Heavy	Change to Medium or Light Clutch Spring.
	Clutch Spring on light torque
	application)
Motor stalls before Adjustable	Improper Clutch adjustment or	Check Clutch Adjustment and review tool perfor-
Clutch ratchets	improper tool ratio for application	mance vs. requirements.
	Low pressure at the inlet	Check the air supply. For top performance, the air
		pressure must be 90 psig (6.2bar/620kPa) at the inlet.
	Insufficient grease	Lubricate the Clutch as instructed.
	Improper exhaust control adjust-	Adjust the exhaust flow to obtain the desired speed.
	ment
Tool ratchets before shutoff	Push Rod too long	Shorten the push Rod. Refer to“TESTING THE
		TOOL” on page 37
Tool stalls without shutting off	Shutoff Valve too short	Lengthen the Shutoff Valve. Refer to “TESTING
		THE TOOL” on page 37
Too runs slower than normal	Shutoff Valve too short	Lengthen the Shutoff Valve. Refer to “TESTING
		THE TOOL” on page 37

SAVE THESE INSTRUCTIONS. DO NOT DESTROY.

38 P7440 Edition 10