Ingersoll Rand — Assembly of the Motor

A Ingersoll Rand service procedure — check it applies to your exact model before use.

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Procedure

1. Lightly clamp Motor Housing (26) in leather-covered or copper-covered vise jaws with handle end upward.
2. Grease Front Rotor Bearing (25) and install it in recess of Front End Plate.
3. Coat inside surface of Housing and outer edge of Front End Plate (24) with a light film of oil.
4. Using a long tee hex wrench as an alignment pin, insert Front End Plate, copper face trailing, into Motor Housing. Align dowel hole in End Plate with dowel hole at the bottom of motor bore.
5. Lubricate and insert a new fiber Air Port Gasket Retainer (28) in one of the air ports inside Motor Housing.
6. Install an Air Port Gasket (29) in the air port against Gasket Retainer with flat end of Gasket away from Retainer.
7. Repeat Steps 5 and 6 to install remaining Gasket and Retainer in the other air port.
8. Coat outside of Cylinder (21) with a light film of oil and using long tee hex wrench as an alignment pin to align the holes in Cylinder with holes in Front End Plate and Housing, insert Cylinder into Housing.
9. Coat inside of Cylinder and Rotor (22) with a light film of oil and insert the splined hub of Rotor through Cylinder into Front End Plate.
10. Coat each Vane (23) with a light film of oil and insert a Vane into each slot in the Rotor. Vanes must be installed with curved edge toward center of Rotor. Spin the Rotor to settle Vanes in position.
11. Using long tee hex wrench to align hole in Rear End Plate (20) with hole in Cylinder, insert the Rear End Plate, bronze face leading, into Motor Housing against the Cylinder. End Plate is properly seated when large trailing face of End Plate is slightly below face of Motor Housing.
12. Grease Rear Rotor Bearing (18) and install it in recess of Rear End Plate.
13. Remove alignment pin from assembled motor and install Cylinder Dowel (19). The Dowel is properly seated when end of Dowel does not protrude above End Plate.
14. Install Motor Clamp Washer(s) (16) against Rear End Plate so that large outer edge of Washer contacts End Plate.

Source: manual:10569408ed2b.pdf. Figures and steps are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.