Ingersoll Rand AC Serie Manual De Uso Y Mantenimiento página 15

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 (27) 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 (16) after assembly.
Disassembly
General Instruction:
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 vice jaws to
protect the surface of the part or tool and help prevent
distortion. This is particularly true of threaded
members and housings. A special rubber block is
available to hold the housing. The part number for
ordering this special block is #22040992.
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. Remove the Angle Head Cap (35). Slip the Tool
Holder (63) (optional) over the body of the tool and
grasp it in a vise with the end of the Arbor (43)
upward.
2. For models with Collets, using one Collet Wrench
(57) on the Arbor flats and the other Collet Wrench on
the Collet Nut (48), unscrew the Collet Nut and
remove the Collet Cap (47) and Collet (46).
For models with Wheel Guards, insert the Hex
Wrench (58) into the end of the Arbor to keep it from
turning and using the Spanner Wrench (61), unscrew
and remove the Wheel Nut (54). Remove the Wheel
Flange (53), wheel and Flange Spacer (52) from the
Arbor. Using a 3mm Hex Wrench (59), loosen the
Cap Screw (50) and remove the Guard Adaptor (49)
along with the assembled Wheel Guard (51).
MAINTENANCE SECTION
3. Using a suitable spanner wrench, unscrew the Arbor
Bearing Cap (45).
4. Using Wrench (62), loosen the Housing Cap (33) and
unscrew it from the Motor Clamp (32).
5. Loosen the Angle Housing (37) and unscrew it one
turn. This is a left- - hand thread.
6. Grasp the Arbor and pull the assembled Arbor out of
the Angle Housing.
7. Unscrew the Angle Housing the rest of the way.
8. Use bearing support plates and an arbor press to
remove the Bearings (39 and 42), Grease Wick (40),
and Gear (41) as needed. Note that the Gear is keyed
to the Arbor.
9. If either Bearing is removed for any reason, replace it
with a new one.
Disassembly of the Motor:
1. Remove the Motor Clamp from the Motor Housing (1).
2. Pull the motor assembly out of the Housing.
3. Grasp the Cylinder (28) in a vise and use a punch to
tap the Rotor (26) out of the Rear Bearing (23).
4. Remove the Vanes (27) from the Rotor.
5. Grasp the Rotor in copper- - covered or leather- - covered
vise jaws with the Pinion (34) upward. Using a 12mm
wrench, unscrew and remove the Pinion.
6. If the Front Rotor Bearing (31) must be replaced,
support the Front End Plate (29) between two blocks
on the table of an arbor press. Place the blocks as
close to the body of the Rotor as possible and press
the Rotor from the Bearing and End Plate. Remove
the Front Rotor Bearing Spacer (30) from the Rotor.
Press the Bearing out of the end plate using a 0.433"
(11mm) pin.
7. If the Rear Rotor Bearing (23) must be replaced, press
the Bearing out of the end plate using a 0.2375"
(6.03mm) pin.
Disassembly of the Inlet and Throttle:
1. Using a 3/4" wrench, unscrew and remove the Inlet
Bushing (16).
2. Remove the Exhaust Deflector (15), O- - Ring (14) and
Silencer (13) from the Inlet.
3. Using a 1/4" bushing driver, tap the Motor Housing
out of the Composite Housing (9).
4. Remove the O- - Ring Gasket (8), and Muffler Element
(12).
5. Unscrew the Valve Plug (22), and remove the Valve
Stem (18), Valve Spring (20), Valve Spring Seat (19)
and Valve O- - Ring (17).
6. The Valve Bushing (2), if it must be replaced, is only
available as part of an assembly of the Motor Housing
and Bushing.
7. Press the Throttle Lever Pin (7) from the Housing and
remove the Throttle Lever Assembly (3, 4, 5 and 6).
8. Any Throttle Lever parts to be replaced are only
available as part of the Throttle Lever Assembly.
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