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Ingersoll Rand — Disassembly of Motor

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

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Before you start

  • The End Plate Dowel (26) will be free to move when the Front End Plate (25) clears the Housing. Do not lose it.

Procedure

  1. Grasp the Motor Retainer (29) and lift it from the Motor Housing (1).
  2. Lift the Rear Hammer Frame Washer (35) and the two Motor Clamp Washers (28) from the front of the motor.
  3. Grasping the spline of the Rotor (21), carefully lift the assembled motor from the Motor Housing.
  4. Remove the Rear End Plate Gasket (20).
  5. Slide the Front End Plate (25) and Front Rotor Bearing (27) from the Rotor.
  6. Remove the Cylinder Dowel (24), Cylinder (23) and Vanes (22) from the Rotor.
  7. Using snap ring pliers, remove the Rear Rotor Bearing Retainer (17) and slide the Rear End Plate (19) and Rear Rotor Bearing (18) from the Rotor.
  8. If the Front Rotor Bearing or Rear Rotor Bearing requires replacement, press it from the End Plate with an arbor press.
  9. Remove the Housing from the vise.

Tools required

  • snap ring pliers
  • arbor press

Source: manual:maintenance_manual_1720b-1720p_16601619_c_ed03.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.