Maintenance Section; General Instructions - Ingersoll Rand CA Serie Manual De Operación Y Mantenimiento

Always wear eye protection when operating or
performing maintenance on this tool.
Always turn off the air supply and disconnect the air
supply hose before installing, removing or adjusting
any accessory on this tool, or before performing any
maintenance on this tool.
LUBRICATION
Whenever one of these Grinders is disassembled for
overhaul or replacement of parts, lubricate as follows:
1. Always wipe the Vanes (13) with a light film of oil
before inserting them into the vane slots.
2. Inject 0.5 to 1.0 cc of Ingersoll–Rand No. 10 Oil into
the Air Inlet Assembly (1) after assembly.
DISASSEMBLY

General Instructions

1. Do not disassemble the tool any further than
necessary to replace or repair damaged parts.
2. When grasping a tool or part in a vise, always use
leather–covered or copper–covered vise jaws to
protect the surface of the part or tool and help prevent
distortion. This is particularly true of threaded
members and housings.
3. Do not remove any part which is a press fit in or on a
subassembly unless the removal of that part is
necessary for repairs or replacement.
4. Do not disassemble the tool unless you have a
complete set of new gaskets and O–rings for
replacement.
5. Do not press any needle bearing from a part unless
you have a new needle bearing on hand for
installation. Needle bearings are always damaged
during the removal process.
Disassembly of the Angle Head
1. Grasp the tool in copper–covered or leather–covered
vise jaws with the end of the Arbor (31) upward.
2. For models with Collets, using the Collet Body
Wrench (44) on the arbor flats and the Collet Nut
Wrench (45) on the Collet Nut (34), unscrew the
Collet Nut and remove the Nosepiece (33) and Collet
(32).
For models with Sanding Pads, using the Collet
Body Wrench (44) on the arbor flats to prevent the
Arbor from turning, unscrew the Sanding Pad (43)
from the Arbor.
For models with Wheel Guards, insert the Arbor
Wrench (48) into the end of the Arbor to keep it from

MAINTENANCE SECTION

3.
4.
5.
6.
7.
8.
Disassembly of the Motor
1.
2.
3.
4.
21
turning and using the Wheel Nut Wrench (49),
unscrew and remove the Flange Nut (39). Remove the
Wheel Flange (38), wheel and Flange Spacer (40)
from the Arbor. Using a 9/64" hex wrench, loosen the
Guard Pinch Bolt (42) and remove the Guard Adapter
Assembly (41) along with the assembled Wheel
Guard (35).
Using the Arbor Bearing Cap Wrench (46), unscrew
and remove the Arbor Bearing Cap (30). This is a
left–hand thread. Rotate the Cap Wrench
counterclockwise to remove the Cap.
In the following step, do not allow the Angle Head
to rotate when separating it from the Motor.
Components may fall from the Angle Head.
Using the Clamp Nut Wrench (47), loosen the Clamp
Nut (24) and pull the Angle Housing Assembly (22)
away from the Motor Housing (5). This is a left–hand
thread. Rotate the Nut Wrench clockwise to loosen
the Nut.
Grasp the Arbor and pull the assembled Arbor
out of the Angle Head. If the Wick (27) needs
replacement, pull it out of the Angle Housing. The
Wick is staked into position and will be destroyed by
removal. Make certain a replacement Wick is
available before removing the old Wick.
If the Upper Arbor Bearing (26) needs replacement,
support the Angle Head on the table of an arbor press,
bearing end down, and press the Bearing out of the
Angle Head.
Grasp the Arbor in copper–covered or
leather–covered vise jaws with the collet end
downward. Using an adjustable wrench, unscrew and
remove the Bevel Gear Nut (28) and lift the Bevel
Gear off the Arbor.
If the Lower Arbor Bearing (29) must be replaced,
use a piece of tubing to support the Bearing on the
table of an arbor press and press the Arbor from the
Bearing.
Pull the Flange (19) and Flow Ring (18) off the front
of the Motor Housing (5).
Grasp the Bevel Pinion (21) and pull the assembled
motor out of the Motor Housing. Remove the two
Rear Rotor Bearing Spacers (10) from the bottom of
the Housing.
Remove the Vanes (13) from the Rotor (12).
Grasp the Rotor in copper–covered or leather–covered
vise jaws with the Bevel Pinion upward. Using a 1/2"
wrench, unscrew and remove the Bevel Pinion.