For All Models - Ingersoll Rand 40PSQ1 Manual De Operación Y Mantenimiento

Disassembly of the Motor
For Models 45PS3, 45PSQ1, 55PS3 and
40PSQ1,
55PSQ1:
1. Grasp the Motor Housing in vise jaws with the shaft of
the Rotor (30) upward.
2. Insert the pins of the end plate spacer spanner into the
holes in the Front End Plate Spacer (34). Using a
wrench, unscrew and remove the Spacer. This is a left-
handed thread; rotate the wrench clockwise to
remove the Spacer. (Refer to Dwg. TPD1269.)
END PLATE
SPACER SPANNER
3. Position Motor Housing so that the Rotor Shaft is
facing downward. Tap the Cover Assembly (50) and
Motor Housing with a rubber mallet until the Cylinder
Assembly comes out.
NOTE: A rod (35) may slide out of the Rotor Shaft upon
removal, along with 3 Balls (41) inside the shutoff
mechanism.
4. Remove the motor from the vise jaws and remove the
Cylinder (27) and Vanes (29) from the Rotor (30).
For Models 70PS3 and 90PS4:
1. Grasp the Motor Housing (1) in vise jaws with the
Cover Assembly upward.
2. Using a hex wrench, remove the four Cover Assembly
Screws (53) and Lock Washers (54).
3. Lifting straight upward, remove the Cover Assembly
and assembled shut-off mechanism from the Motor
Housing and also the Gasket (55). Set the assembled
Cover Assembly aside.
4. Remove the Housing from the vise jaws and insert a
rod into the central opening in the output end of the
rotor shaft.
5. While holding the motor end of the Housing above a
piece of cardboard on the workbench, lightly tap the
rod to remove the Rear End Plate (26), Cylinder (27),
Front End Plate (31), Rotor and Vanes.
6. On the table of an arbor press, support the Rear End
Plate with blocks as close to the Rotor as possible and
press the Rotor out of the Bearing (1D).
Maintenance Section (Continued)
In the following two steps, do not enlarge or damage the
shaft hole in the End Plate.
7. To remove the Front and Rear Rotor Bearing from the
Front and Rear End Plates, use a small drift or pin
punch through the central opening of the Rear End
Plate to tap the Bearing out of the End Plate. (Refer to
Dwg. TPD1271.)
CLOCKWISE
TO LOOSEN
(Dwg. TPD1269)

For All Models:

8. Using a Pin Punch, tap the Throttle Retaining Pin
(2) out of the Handle (1). The ends of the pin are
covered with cement.
9. Grasp the Throttle Knob (20) and pull the assembled
throttle and reverse valve out of the Motor Housing.
Take care not to loosen Spring (9).
10. Using a pin punch and without damaging the Throttle
Knob, remove the Pin (21).
11. Grasp the Reverse Lever (19) and pull the Reverse
Valve (23) from the front of the Throttle Bushing
Assembly. The Reverse Lever Detent Ball (18) and
Reverse Lever Detent Spring (17) will fall out of the
Reverse Valve. Take care not to lose them.
12. Remove the Throttle Rod Assembly from the rear of
the Throttle Bushing (16).
13. Remove the Throttle Rod Seal (10) from the Throttle
Rod (11).
14 If it is necessary to replace the Reverse Lever or
Reverse Valve, use a pin punch to tap out the Pin (22)
out of the Reverse Lever. Separate the Reverse Lever
from the Reverse Valve.
15. Using an adjustable wrench, unscrew and remove the
Hose Joint Assembly (8) and Exhaust Cover (6).
16. To disassemble the shut-off mechanism, grasp the
Cover Assembly in copper-covered vise jaws with the
Control Shaft Assembly upward.
17. Using a spanner wrench, unscrew the Control Bushing
Assembly and carefully separate the components. Be
doubly careful not to lose the three Control Bushing
Balls (41) from the shaft of the Control Bushing (34).
38
(Dwg. TPD1271)