Troubleshooting Guide; Rotor Key; Rotor; Arbor Bearing Cap - Ingersoll Rand S120 Manual De Instrucciones

Trouble
Loss of power or low free speed
High free speed
Rough operation
Air leaks
MAINTENANCE SECTION

TROUBLESHOOTING GUIDE

Probable Cause
Low air pressure
Clogged Air Strainer Screen
Worn or broken Vanes
Worn or broken Cylinder
Improper lubrication or dirt
build–up
Worn Rear Rotor Bearing Seal
Assembly
Worn or broken Rear or Front
Rotor Bearing
Worn Rotor Key
Bent Rotor Shaft or Blade Arbor
Worn or broken Rear or Front
Arbor Bearing
Worn or broken Arbor Gear
Worn Throttle Valve Face
Worn Backhead Live Seal or

Backhead Seal.

Oil Chamber Plug worn or not
tight
SAVE THESE INSTRUCTIONS. DO NOT DESTROY.
Check the air supply. For top performance, the air
pressure must be 90 psig (6.2 bar/620 kPa) at the
inlet of the tool.
Clean the Air Strainer Screen in a clean, suitable,
cleaning solution. If it cannot be cleaned, replace
it.
Replace the complete set of Vanes.
Replace the Cylinder if it is cracked or if the bore
appears wavy or scored.
Clean the motor unit parts and lubricate as
instructed.
Replace the Rear Rotor Bearing Seal Assembly if
the outside diameter of the hub is worn to 1.76"
(44.7 mm) or smaller and/or the large inside
diameter is worn to 0.910" (23.1 mm) or larger.
Examine each Bearing. Replace if worn or
damaged.
Replace the Key. Check the Rotor Shaft and Rotor
for key slot wear and replace if necessary.
Replace the bent Shaft or Arbor.
Examine each Bearing. Replace if worn or
damaged.
Replace a worn or broken Arbor Gear.
Replace worn parts.
Replace both Seals.
Replace if worn. Tighten if loose.
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Solution