Ingersoll-Rand WG068A-F4 manual Assembly of the Motor, Assembly of the Impact Mechanism

M35

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MAINTENANCE SECTION

3.Place the Reverse Valve Knob (15) on the end of the Valve and, after applying LoctiteB No. 601 to the Reverse Valve Knob Screw (16), fasten the Knob to the Valve with the Screw. Tighten the Knob Screw to 5 to 6 ft-lb (6.75 to 8.15 Nm) torque.

Assembly of the Motor

1.Using a sleeve that will contact only the outer ring of the bearing, press the Front Rotor Bearing (27) into the Front End Plate (25) and the Rear Rotor Bearing (18) into the Rear End Plate (19).

2.Slip the Font End Plate and Bearing over the splined hub of the Rotor (21).

3.Grasp the splined end of the Rotor in leather-covered or copper-covered vise jaws with the Rotor in a vertical position.

Dampen each Vane (22) with IRAX No. 50 Oil and insert a Vane into each vane slot in the Rotor.

Set the Cylinder (23) over the Rotor and onto the Front End Plate.

Slide the Rear End Plate and Bearing onto the Rotor hub and against the Cylinder.

7.Using snap ring pliers, install the Rear Rotor Bearing Retainer (17) in the groove on the rotor hub.

8.Align the dowel hole in both End Plates with the one through the Cylinder, and insert a guide rod 3/16” diameter x 8” long (4.7 mm diameter x 203 mm long) through the holes. Allow the rod to protrude about 3-l/2” (89 mm) from the Rear End Plate.

9.While holding the assembled motor intact, remove it from the vise.

10.Insert the protruding end of the guide into the cast slot at the bottom of the Motor Housing bore and slide the assembled motor along the rod until it is completely seated in the housing.

11.Remove the guide rod and install the Cylinder Dowel (24).

12.Install the End Plate Dowel (26).

13.Grasp the handle of the Motor Housing in leather-covered or copper-covered vise jaws with the open end of the Motor Housing upward.

14.Place a Motor Clamp Washer (28), concave side first, down over the hub of the Front End Plate so that the outer rim of the Washer contacts the Front End Plate. Place the second Motor Clamp Washer, convex side

first, down over the hub of the Front End Plate so that the inner rims of both Washers are in contact but the outer rims are separated.

15.Place the Motor Retainer (29), small bore first, down over the hub of the Front End Plate and against the outer rim of the second Motor Clamp Washer.

16.Place the Rear Hammer Frame Washer (35), hub side first, over the hub of the Rotor and against the Front Rotor Bearing.

Assembly of the Impact Mechanism

1.Coat the Hammer (38) with a light film of IRAX No. 100 Grease.

2.Slide the Hammer into the Hammer Frame (36) exactly as it was when you marked it prior to disassembly.

In order to utilize both impacting surfaces on the Hammer and thus equalize the wear on each hammer jaw, the Hammer can be flipped over so that the arrow is pointing downward.

3.Replace the Hammer Pins (37).

4.Examine the base of the Anvil (39) and note its contour. While looking down through the Hammer Frame, swing the Hammer to its full extreme one way or another until you can match the contour of the Anvil. Enter the Anvil into the Hammer Frame and through the Hammer.

Assembly of the Tool

1.Set the assembled impact mechanism down over the splined hub of the Rotor.

2.Position the Hammer Case Gasket (30) on the Housing.

3.Work approximately 12 to 15 cc of IRAX No. 100 Grease into the impact mechanism.

4.Smear a thin film of IRAX No. 100 Grease on the inside surface of the Hammer Case Bushing (32), and place the Hammer Case (3 1) down over the Anvil and against the Motor Retainer.

5.Install the Hammer Case Cap Screws (33) and tighten them to 20 to 25 ft-lb (27 to 34 Nm) torque.

6.Remove the Impact Wrench from the vise and inject 2 to 4 cc of IRAX No. 100 Grease into the Grease Fitting (12).

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