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Ingersoll Rand — Assembly of the Motor

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

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Before you start

  • For Series 2925RBTi: Assemble Cylinder with exhaust ports to LEFT of top dead center (11 o'clock position)
  • If more power is needed for forward operation than for reverse operation, install the Cylinder with exhaust ports to the RIGHT of top dead center (1 o'clock position)

Procedure

  1. Pack the Front Rotor Bearing (29) and Rear Rotor Bearing (21) with the recommended grease. Install the Front Rotor Bearing in the Front End Plate (28) and the Rear Rotor Bearing in the Rear End Plate (22).
  2. Slide the assembled Rear End Plate and Rear Rotor Bearing on the hub of the Rotor (24).
  3. Set the assembled Rear End Plate and Rotor on a clean surface with the spline of the Rotor pointing upward.
  4. Insert the Vanes (25) in the vane slots on the Rotor.
  5. Install the Front and Rear Cylinder Dowels (27) in the Cylinder (26).
  6. Slide the Cylinder over the Rotor and Vanes making sure that the Rear Cylinder Dowel enters the notch in the outside diameter of the Rear End Plate.
  7. Install the assembled Front End Plate and Bearing over the front, splined end of the Rotor making sure that the front Cylinder Dowel fits into the notch in the outside diameter of the Front End Plate.
  8. Grasp the Housing with one hand and set it upside down on its top. With the other hand, carefully guide the motor assembly into the Housing, making sure that the side of the motor assembly containing the Cylinder Dowels is oriented to the top of the Housing. Install Locating Pin (23) into Housing and End Plate.

Specs & torque values

  • Front Rotor Bearing (29)
  • Rear Rotor Bearing (21)
  • Rotor (24)
  • Vanes (25)
  • Cylinder Dowels (27)
  • Cylinder (26)
  • Front End Plate (28)
  • Rear End Plate (22)
  • Locating Pin (23)
  • Ingersoll Rand No. 170 Grease

Source: manual:04584355ed3c.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.