Ingersoll Rand 1 Serie Manual De Operación Y Mantenimiento página 28

5. Place the Air Strainer Screen (20), closed end first, inside
the large end coil of the Throttle Valve Spring (11).
6. Insert the Throttle Valve Spring and Screen, small coil
first, into the handle so that the Spring encircles the end
of the Throttle Valve.
7. If the Muffler Element (24) was removed from the
handle, wash it in a clean, suitable, cleaning solution
and then fold it and pinch it dry. While keeping it
folded, insert it into the exhaust cavity in the handle.
8. Place the Muffler O-Ring (23) over the perforated
baffle of the Muffler (22).
9. Place the Muffler on the face of the handle so that the
perforated baffle extends into the handle.
10. Slide the inlet Bushing Spacer (21) over the threaded
end of the Inlet Bushing (19), and install the Inlet
Bushing in the handle. Tighten it to 26 ft-lb (35 Nm) of
torque.
Assembly of the Motor Housing
For In-Line and Angle Drills
1. Work new Muffler Elements (25) into the Exhaust
Deflector (2) or (5) to a point beyond the two throttle
lever pin holes.
2. Position the Throttle Lever (3) on the Exhaust Deflector
with the Lever covering the timing notch at the front
end of the Deflector. Insert the two Throttle Lever Pins
(4) through the Lever and into the Exhaust Deflector.
Using pliers, press the pins in the center of the Throttle
Lever Pins flush with the head.
Do not apply a force strong enough to distort the
Exhaust Deflector.
3. Center a new Inlet Screen (18) over the air line end of
the Inlet Bushing Assembly (17) and, using the eraser
end of a wooden pencil, push the Screen into the
Bushing until it bottoms on the internal shoulder.
4. Place the Exhaust Deflector Seal (6) on the smaller
shoulder of the Motor Housing. To hold the Seal in
position, lightly coat the Seal and shoulder with
Ingersoll-Rand No. 28 Grease. Place the Exhaust
Deflector on the rear of the Housing, aligning the notch
in the Deflector with the alignment pin in the Housing.
Secure the Deflector to the Housing with the Inlet
Bushing Assembly. Use a torque wrench and tighten the
Inlet Bushing Assembly to 15 to 18 ft-lb (20 to 24 Nm)
torque.
5. Before installing throttle components, make sure that
the Motor Housing is positioned correctly.
The Throttle Lever should be facing downward. Shift
leftward the Throttle Valve Plunger (12), Throttle Valve
Ball (14) and Throttle Valve Spring (11) into the Motor
Housing. Position the Throttle Valve Cap (13) on the
Throttle Valve Spring. Screw the Valve Cap into the
Motor Housing until the cap is within approximately
two threads of being flush with the Housing. Apply a
light, uniform coat of thread locking compound to the
remaining two threads. Tighten the Valve Cap securely
and place the Housing on a workbench with the Valve
Cap facing downward. Allow the thread locking
compound to cure approximately five minutes.
MAINTENANCE (Continued)
Assembly of the Motor
1. Place the Rear End Plate (28) on the short, unsplined
shaft of the Rotor (33) with the counterbore away from
the body of the Rotor.
2. Using a sleeve that contacts the inner ring of the Rear
Rotor Bearing (27), press the Bearing onto the shaft
until the Rear End Plate just contacts the rotor body.
3. The clearance between the Rear End Plate and Rotor is
critical. While pressing down with your finger on the
outer edge of the End Plate on the Bearing side, insert a
.002" (.05 mm) feeler gauge between the face of the
Rotor and End Plate directly opposite the point where
pressure is applied.
This measurement must be made at the outside
diameter of the rotor body.
Supporting the End Plate, lightly tap the shaft with a
plastic hammer to increase the space. Press the Bearing
farther onto the shaft if the space is too wide. When the
proper clearance is obtained, install the Rear Rotor
Bearing Retainer (26) on the shaft.
FEELER
GAUGE
4. Place the Rotor, with the splined end up, in a block
which has clearance for the Rotor Bearing and supports
the Rear End Plate.
5. Wipe each Vane (34) with a light film of Ingersoll-Rand
No. 10 oil and place a Vane in each slot in the Rotor.
6. Note that the Cylinder (32) has a notch in one end.
Place the Cylinder, notched end up, down over the
Rotor and against the Rear End Plate, aligning the
dowel hole in the Cylinder with the U-shaped notch in
the rim of the Rear End Plate.
7. Install the Front Rotor Bearing (27) in the Front End
Plate (30) and retain it with the Front Rotor Bearing
Retainer (31).
8. Using a sleeve that contacts the inner ring of the
bearing, press the assembled Front End Plate, flat side
first, on the splined end of the Rotor until the End Plate
just contacts the Cylinder.
28
MEASUREMENT OF REAR
END PLATE CLEARANCE
PRESSURE
(Dwg. TPD789)