Ingersoll Rand 1 Serie Manual De Operación Y Mantenimiento página 27

3. For Models 1LJ1A1 and 1LL1A1, using pair of snap
ring pliers, remove the Spindle Retaining Ring (49A)
from the groove in the front of the Spindle.
4. To remove the Spindle (39) and Spindle Planet Gears
(40), firmly hold the Gear Case and tap the end of the
Spindle on front of the Gear Case with a soft-faced
hammer, driving the Spindle from the Gear Case.
5. Use snap ring pliers to remove the Spindle Bearing
Retainer (49) from the groove in the front of the Gear
Case.
6. Using a sleeve that contacts the outer ring of the
bearing, press the Rear Spindle Bearing (46) from the
front of the Gear Case.
Disassembly of the Motor
1. Grasp the splined end of the Rotor (33) and pull the
motor from the Motor Housing (1).
2. Withdraw the Rear End Plate Gasket (29) from the
bottom of the housing bore.
3. While grasping the Cylinder (32) in one hand, lightly
tap on the splined end of the Rotor to drive the Rotor
from the bore of the Front End Plate (30) and Bearing.
4. Using snap ring pliers, remove the Front Rotor Bearing
Retainer (31) and pull the Front Rotor Bearing from the
Front End Plate.
5. Slide the Cylinder off the Rotor, and withdraw the
Vanes (34) from the vane slots.
6. Remove the Rear Rotor Bearing Retainer (26) from the
groove in the hub of the Rotor.
7. Support the Rear End Plate (28) as close to the rotor
body as possible, and press the Rotor from the Rear
Rotor Bearing.
Disassembly of the Motor Housing
For Pistol Grip (Models 1A and 1P)
1. Lightly grasp the pistol grip handle in copper-covered
vise jaws so that the Air Inlet Busing (19) is upward.
2. Unscrew the Air Inlet Bushing and remove the Inlet
Bushing Spacer (21), Muffler Assembly (22), Muffler
O-Ring (23), Air Strainer Screen (20), Throttle Valve
Spring (11) and Throttle Valve (10).
3. Withdraw the Trigger (7) and Trigger Pin Seal (8).
4. Using a stiff wire hook, pull the Throttle Valve Seat (9)
from the handle.
5. Using a pair of needle-nose pliers, pull the Muffler
Element (24) from the handle.
Disassembly of the Motor Housing
For In-Line and Angle Drills
The Throttle Valve Cap is under pressure from the
Throttle Valve Spring and care must be exercised
when removing the Throttle Valve Cap.
1. Remove the Throttle Valve Cap (13), Throttle Valve
Spring (11), Throttle Valve Ball (14) and Throttle Valve
Plunger (12) from the Motor Housing (1).
2. Using an adjustable wrench, remove the Inlet Busing
Assembly (17).
MAINTENANCE (Continued)
3. If the Inlet Screen (18) requires replacement, use the
eraser end of a wooden pencil to push the Inlet Screen
from the Inlet Bushing Assembly.
4. Remove the Exhaust Deflector Assembly (2) from the
Motor Housing.
5. Remove the Exhaust Deflector Seal (6) from the
Housing.
6. The Throttle Lever (3) is attached to the Exhaust
Deflector Assembly with two Throttle Lever Pins (4)
which are two-piece rivets. Lightly grasping the
Deflector in copper-covered vise jaws, drive the pin in
the center of the rivet inward with a pin punch until it is
free of the rivet. Repeat the procedure on the other
rivet. Squeeze the ends of the rivets, together and pry
them from the Deflector with a screwdriver or pull
them with pliers.
7. Work the Muffler Elements out of the Exhaust
Deflector.
General Instructions
1. Always press on the inner ring of a ball-type bearing
when installing the bearing on a shaft.
2. Always press on the outer ring of a ball-type bearing
when pressing the bearing into a bearing recess.
3. Whenever grasping a tool or part in a vise, always use
leather-covered or copper-covered vise jaws.
Take extra care with threaded parts and housings.
4. Always clean every part and wipe every part with a thin
film of oil before installation.
5. Apply a film of O-ring lubricant to all O-rings before
final assembly.
6. Check every bearing for roughness. If an open bearing
must be cleaned, wash it thoroughly in a suitable
cleaning solution and dry with a clean cloth.
Sealed or shielded bearings should never be cleaned.
Work grease thoroughly into every open bearing before
installation.
Assembly of the Motor Housing
For Pistol Grip (Models 1A and 1P)
1. Grasp the handle in a vise so that the handle is vertical
and the entrance to the handle bore is upward.
2. Note that the Throttle Seat Valve (9) is symmetrical and
can be installed in the handle either side first in order to
get full use of each side. Push the Throttle Valve Seat
into the tapped bore or the handle with a 1/2" (13 mm)
diameter dowel. Push it in until it seats.
3. Install the Trigger Pin Seal (8) onto the trigger pin and
insert Trigger (7) in the Housing.
4. Installation of the Throttle Valve is sometimes a bit
difficult due to the smallness of the Valve and the depth
of the bore in which it is located. The difficult part is in
holding the Valve while inserting the long end of the
valve stem through the hole in the trigger pin. Although
the Valve can be held with a push-button mechanical
pencil or a wooden dowel, one of the easiest ways to
hold it is by using a common wooden pencil with
rubber eraser. Insert the short end of the valve stem into
the rubber eraser full depth, then backing it out far
enough so that the Valve is just nicely supported. Insert
the Valve into the bore of the handle so that the long
end of the stem enters the hole in the trigger to hold the
Valve while removing the pencil.
27
ASSEMBLY