Ingersoll Rand CA Serie Mode D'emploi page 25

Trouble
Low power or low free speed
Excessive runout
Scoring of End Plate
Leaky Throttle Valve
Exhausts at wrong direction
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MAINTENANCE SECTION
TROUBLESHOOTING GUIDE
Probable Cause
Insufficient air pressure
Clogged muffler elements
Plugged Inlet Screen
Worn or broken Vanes
Loose Clamp Nut
Worn or broken Motor Housing
Internal air leakage in the Motor
Housing indicated by high air
consumption/low speed or air
leaking out the front and rear
exhaust simultaneously.
Grit buildup under the Throttle
Lever restricting full Throttle
Valve Plunger movement.
Bent stem on Throttle Valve
Front Seal Cup dragging against
the shield of the Front Rotor
Bearing
Bent Arbor
Loose Collet Nut
Worn or damaged Collet, Collet
Nut or Nosepiece
Worn or damaged Upper Arbor
Bearing or Lower Arbor Bearing
Worn Front End Plate Spacer or
Front End Plate
Worn Front Rotor Bearing
Dirt accumulation on Throttle
Valve or Throttle Valve Seat
Worn Throttle Valve or Throttle
Valve Seat
Excessive dirt build–up beneath
the Throttle Lever
Bent Throttle Valve Plunger
Incorrect orientation of the Flow
Ring
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Solution
Check air line pressure at the Inlet of the Tool. It
must be 90 psig (6.2 bar/620 kPa).
Disassemble the Tool and agitate bare Motor
Housing and Flange in a clean, suitable, cleaning
solution. Back Flush the Muffler Elements with a
clean, suitable, cleaning solution until all contami-
nants and obstructions are removed. If elements
cannot be cleaned, replace them.
Clean the Inlet Screen in a clean, suitable,
cleaning solution or replace the Screen.
Install a complete set of new Vanes.
Tighten the Nut between 20 and 25 ft–lb (27 and
34 Nm) torque.
Replace the Motor Housing.
Replace the Motor Housing.
Remove the Throttle Lever and clean the groove
in the Motor Housing.
Replace the Throttle Valve.
Reposition the Front Seal Cup.
Replace the Arbor.
Tighten the Collet Nut until snug.
Replace the damaged component and retest.
Replace the worn or damaged Bearing.
Install a new Front End Plate Spacer and Front
End Plate.
Install a new Front Rotor Bearing.
Disassemble, inspect and clean parts.
Replace the Throttle Valve and/or Throttle Valve
Seat.
Clean out the slot area.
Replace the Plunger.
Reverse the face of the Flow Ring against the
Motor Housing.