Form 04584256-Edition 1
3
Assembly of the Motor
1.
Make certain Reverse Valve Bushing Seals (17) are properly located
in undercuts in Reverse Valve Bushing (16).
2.
Dampen Reverse Valve (18) with light oil. Install Reverse Valve
Detent Spring (20) followed by Reverse Valve Detent Ball (19) in hole
in Reverse Valve. With Air Impact Wrench in an upright horizontal
position, and while facing handle end of Air Impact Wrench, slowly
rotate Reverse Value and insert it from left to right in splined end of
Reverse Valve Bushing.
3.
Attach Reverse Valve Knob (21) to Reverse Valve with Reverse
Valve Knob Screw (22), and tighten Screw to 60 to 70 in-lb (6.75 to
8.15 Nm) torque.
4.
If Throttle Value Seat (7) was removed from handle, install a new
Throttle Value Seat by pushing it into place with a 1/2’’ (13 mm)
diameter dowel.
5.
Insert Trigger Assembly (3) into Trigger Bushing(2).
6.
Insert Throttle Valve (8). long stem end first, into the bottom of handle
so that the valve stem engages the hole in the Trigger Pin (4).
7.
Install Throttle Valve Spring (9), small end first.
8.
Make certain two Oiler Body Seals (11) are positioned in annular
grooves on Oiler Body (10), and install Oiler Body counterbored end
first into handle. The large end of Throttle Valve Spring should seat in
the counterbore in Oiler Body. Install the Oiler Retaining Ring (12A).
9.
Position Exhaust Deflector (6) on bottom of handle, and retain it with
Air Strainer (13). Tighten Air Strainer to 40 to 45 ft-lb (61 to 67.8 Nm)
torque.
10. Using a sleeve that will contact only the outer ring of the bearing,
press the Front Rotor Bearing (34) into Front End Plate (33) and
Rear Rotor Bearing (26) into Rear End Plate (27).
11. Slip Front End Plate and Bearing over splinded hub of the Rotor (28).
12. Grasp splined hub of Rotor in copper-covered vise jaws so that Rotor
is in a vertical position.
13. Dampen each Vane (29) with light oil and insert a Vane into each
vane slot.
14. Set Cylinder (30) over Rotor and onto Front End Plate.
15. Slide Rear End Plate and Bearing onto rotor hub and against
Cylinder.
16. Install Rear Rotor Bearing Retainer (25) in groove on rotor hub.
17. Align dowel hole in both End Plates with the one through the
Cylinder, and insert a guide rod 3/16’’ (4.7 mm) diameter x 6’’ (152
mm) long. Allow rod to protrude from Rear End Plate.
18. Grasp handle of Motor Housing in copper-covered vise jaws so that
bore of the Motor Housing is horizontal.
19. Wipe a thin film of light grease on End Plate Gasket (24) and press
Gasket firmly against Rear End Plate.
20. Insert protruding end of guide rod into dowel hole in bore of Motor
Housing, and slide motor along rod until it is completely seated.
21. Remove guide rod and replace it with the Cylinder Dowel (31). Install
End Plate Dowel (32) in the matching notches of Front End Plate and
Motor Housing.
22. Re-position Motor Housing in the vise so that the open face of the
Motor Housing is upward.
23. Place two Motor Clamp Washers (35), convex side first against Front
End Plate so that the inner rim of leading Washer contacts the End
Plate, and outer rim of trailing Washer contacts Hammer Case Pilot
(43).
24. Place Rear Hammer Frame Washer (38) over hub of Rotor and
against Front Rotor Bearing.
Assembly of the Impact Mechanism
(Dwg. TPD652)
1.
Coat the Hammers with a light film of
Ingersoll-Rand
Grease No.
105.
2.
Replace Hammers in the Hammer Frame exactly as they were when
you marked them prior to disassembly.
NOTICE
If you are installing new Hammers or want to change the location of
the existing Hammers to utilize both impacting surfaces, slide the
Hammers in the Hammer Frame so that the half–round notch on one
Hammer is located on one side of the Frame and the half–round
notch on the other Hammer is located on the other side of the
Frame.
3.
Replace them Hammer Pins.
4.
Examine base of Anvil and note its contour. While looking down
through the Hammer Frame, swing top Hammer to its full extreme
one way or another until you can match the contour of the Anvil.
Enter Anvil into Hammer Frame and through the first Hammer. Swing
bottom Hammer in opposite direction from top Hammer and
maneuver the Anvil slightly until it drops into the bottom Hammer.
Assembly of the Air Impact Wrench
1.
Set assembled impact mechanism down over splined hub of Rotor.
2.
Smear a thin film of
Ingersoll-Rand
Grease No. 105 on inside
surface of the Hammer Case Bushing (41), and place Hammer Case
(40) down over the Anvil (46) and against Motor Housing.
3.
Install Hammer Case Cap Screws (45) and Lock Washers (44).
Tighten Hammer Case Cap Screws to 14 to 17 ft-lb (19 to 23 Nm)
torque.
BOTTOM HAMMER
HALF-ROUND NOTCH ON
LEFT
BOTTOM HAMMER
WIDE BEVEL DOWN
TOP HAMMER
HALF-ROUND NOTCH ON RIGHT
TOP HAMMER
WIDE BEVEL UP
