Ingersoll-Rand QS1L Manuale Utente

38

P7440 Edition 10

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 
the Adjustable Clutch

Improper lubrication

Remove the Adjustable Clutch mechanism and exam-
ine the parts. Lubricate as instructed.

Wrong Clutch Spring (using Heavy 
Clutch Spring on light torque 
application)

Change to Medium or Light Clutch Spring.

Motor stalls before Adjustable 
Clutch ratchets

Improper Clutch adjustment or 
improper tool ratio for application

Check Clutch Adjustment and review tool perfor-
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-
ment

Adjust the exhaust flow to obtain the desired speed.

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