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8. Coat inside of Cylinder and Rotor (21) with a light film
of oil and insert the splined hub of Rotor through
Cylinder into Front End Plate.
9. Coat each Vane (22) 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.
10. Using long tee hex wrench to align hole in Rear End
Plate (19) 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.
11. Grease Rear Rotor Bearing (20) and install it in recess
of Rear End Plate.
12. Remove alignment pin from assembled motor and
install Cylinder Dowel (26). The Dowel is properly
seated when end of Dowel does not protrude above
End Plate.
13. Install Motor Clamp Washer (18) against Rear End
Plate so that large outer edge of Washer contacts End
Plate.
Assembly of the Reverse Valve
1. Inject a small amount of grease into hole in Motor
Housing (27) where Reverse Lock Plunger (36) will be
installed. With grease to hold them in position, install
Reverse Lock Plunger Spring (37) and Lock Plunger.
2. Install a new Reverse Valve Bushing Seal (39) in
annular groove on Reverse Valve (38).
3. Coat Reverse Valve with a light film of oil and install it
in Motor Housing with the side hole nearest to Seal
pointed toward Rotor (21).
4. Position Reverse Lever (35) on Reverse Valve and
while using a thin blade screwdriver to depress
Reverse Lock Plunger, push Lever onto Reverse Valve.
5. Place a new Handle Gasket (15) on the Motor Housing.
6. Examine Reverse Valve Seal (13) located inside
Handle and if it is nicked, deformed or worn, remove it
and install a new Seal.
7. Fill rotor cavity in Handle with Ingersoll–Rand No.
100 Grease and position Handle on the Motor Housing.
8. Install four Handle Cap Screws (17) and Lock
Washers (16) and using an alternate tightening pattern,
tighten Screws to between 14 and 17 ft–lb (19 and
23 Nm) torque.
9. Move Reverse Lever through the forward and reverse
positions to make certain the Lever locks in position.
10. Turn assembly in vise jaws and clamp on Handle with
rotor shaft upward.
MAINTENANCE SECTION
11. Grease Front Rotor Bearing (25) and place it over rotor
12. Select a socket or piece of tubing that will fit over the
13. Pack Bearing with additional grease and rotate rotor
Assembly of the Impact Mechansim
1. Coat Hammer (40) with a light film of Ingersoll–Rand
2. Replace Hammer in Hammer Frame (45) exactly as
3. Replace Hammer Pins (46).
4. Examine base of Anvil (48) and note its contour. While
Assembly of the Impactool
1. Set assembled hammer mechanism onto rotor shaft
2. Place Hammer Case Gasket (42) over mechanism and
3. Grease Anvil and top of Hammer Frame.
4. Place Hammer Case (40) over mechanism assembly
5. Install the Hammer Case Cap Screws (44) and Lock
6. Install a new Exhaust Silencer (56) in Exhaust
7. Position a new Exhaust Gasket (55) against face of the
17
shaft.
outside race of the Bearing and tap it with a hammer to
seat Bearing into Housing.
shaft. If shaft does not rotate smoothly, rap end of rotor
shaft with a soft hammer to set motor and try to rotate
shaft again.
No. 100 Grease.
they were when you marked them 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.
looking down through 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.
spline.
against face of Motor Housing.
against Gasket.
Washers (43) into Housing and using an alternating
pattern for all four fasteners, tighten Screws between
20 and 25 ft–lb (27 and 34 Nm) torque.
Deflector (53) and install the Exhaust Baffle (54) in
Deflector.
Motor Housing. Position the assembled Deflector
against the Gasket and secure it by tightening the two
Deflector Screws (57).
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