Advertisement
3.
Apply Loctite No. 242 to the first two or three threads of the Reverse
Valve Stop (30) and thread the Stop into the tapped end of the
Reverse Valve. Tighten the Stop to 4 to 7 in-lb (.45 to .80 Nm) torque.
Assembly of the Motor
1.
Install a new End Plate Gasket (48) into the motor bore of the Motor
Housing (1), making sure the holes in the Gasket align with those in
the bottom of the Housing.
2.
Slide the Rear End Plate (51) onto the short hub of the Rotor (52),
with the bearing recess trailing.
3.
Slide the Rear Rotor Bearing (50) onto the short hub of the Rotor
against the Rear End Plate.
4.
Install the Rear Rotor Bearing Retainer (49).
5.
With the splined end of the Rotor upright, place the Cylinder (54),
pocket end first, over the Rotor with the dowel hole and ports aligned
with the holes in the Rear End Plate.
6.
Apply a light film of oil to the Vanes (53) and insert them into the vane
slots in the Rotor.
7.
If the Front Rotor Bearing (57) was removed, press a new Bearing
into the recess of the Front End Plate (56).
8.
Slide the assembled Front End Plate over the splined hub of the
Rotor, Bearing trailing, with the dowel hole and ports of the Front End
Plate aligning with like holes in the Cylinder and Rear End plate.
9.
Insert a 6'' x 1/8'' (150 mm x 302 mm) rod through the aligned dowel
holes in the two End Plates and Cylinder. Use the rod as a guide to
insert the motor into the Motor Housing with the dowel hole and ports
of the motor and End Plate Gasket aligned.
10. Grasp the Motor housing in a vise, motor upward. Withdraw the rod
and replace it with the Cylinder Dowel (55).
11. For the 2902SB only, install new Silencers (18) in the Motor
Housing(1).
Assembly of the Impact Mechanism
1.
Place the Hammer Frame Washer (58) over the splined hub of the
Rotor and against the Front Rotor Bearing (57).
2.
Coat the spine and pin holes of the Hammer Frame (60) with a light
film of Ingersoll-Rand Grease No.105.
3.
Install the Hammer Frame on the splined hub of the Rotor.
4.
Coat the hammer (59) with a light film of Ingersoll-Rand Grease
No.105 and slide the Hammer inside the Hammer Frame.
Troubleshooting Guide
Trouble
Low power
Motor will not run
Tool will not impact
Related Documentation
For additional information refer to:
Air Impact Wrench Product Safety Information Manual Form 04580916,
Air Impact Wrench Product Information Manual Form 04584769,
Air Impact Wrench Parts List Manual Form 04584595.
Manuals can be downloaded from www.irtools.com.
4
Probable Cause
Dirty Inlet Bushing or Air Strainer Screen and/or
Exhaust Silencer.
Worn or broken Vanes.
Worn or broken Cylinder and/or scored End Plates.
Dirty motor parts.
Improper positioning of the Reverse Valve.
Incorrect assembly of the motor.
Insufficient lubricant in the impact mechanism.
Broken or worn impact mechanism parts.
Impact Mechanism not assembled correctly.
5.
Coat the two Hammer Pins (61) with a light film of Ingersoll-Rand
Grease No.105 and insert the Pins in the two holes of the Hammer
Frame so they engage the notches on the Hammer.
6.
Coat the Anvil (66, 69, 72, and 79) with a light film of Ingersoll-Rand
Grease No.105. Place the Anvil into the front of the Hammer Frame
and through the Hammer until it seats in the rear of the Hammer
Frame.
Assembly of the Air Impact Wrench
For the 1/4'' Quick-Change Anvil Assembly
1.
Reinstall the Hammer Case (62) and secure with the Cap Screws
(65).
2.
Follow the Hammer Case with the Thrust Lock Ring (73), Thrust Ring
(74), Retaining Sleeve Spring(75), Retaining Ball (76), Retaining
Sleeve (77), and the Retaining Sleeve Stop (78).
For the 7/16'' Quick-Change Anvil Assembly
1.
Reinstall the Hammer Case (62) and secure with the Cap Screws
(65).
2.
Use a spot of grease to place the Body Lock Pin (81) and the
Retaining Ball (85) in the Quick-Change Body Anvil (80).
3.
Slide the Retaining Sleeve (86) over the Body Anvil followed by the
Retaining Sleeve Spring (84) and Thrust Ring (83).
4.
Secure with the Thrust Ring Lock (82).
For the 3/8'' Square Drive Anvil
1.
If the Hammer Case Bushing (63) was removed, smear a thin film of
Ingersoll-Rand Grease No.105 on the surface of the Bushing and
press the Bushing into the Hammer Case (62) from the large open
end until the bushing flange contacts the Hammer Case.
2.
Place the Hammer Case Gasket (64) over the front end of the Motor
Housing with the Holes in the Gasket and Housing aligned.
3.
Slide the Hammer Case Assembly over the Impact Mechanism and
install the Hammer Case Cap Screws (65). Tighten the Cap Screws
to 45 in-lb (5 Nm) torque.
Solution
Using a clean, suitable, cleaning solution, in a well ventilated
area, clean Air Strainer Screen, Inlet Bushing Exhaust
Silencer. Blow dry with compressed air.
Replace complete set of Vanes.
Examine Cylinder and replace it if it is worn or broken or if
the bore is scored or wavy. Replace End Plates if they are
scored.
Disassemble tool and clean all parts with a suitable cleaning
solution, in a well ventilated area. Reassemble tool as
instructed in this manual.
Make certain that the Reverse Valve is fully engaged to the
left or right.
Disassemble the motor, replace worn or broken parts and
reassemble as instructed.
Remove Hammer Case Assembly and lubricate impact
mechanism.
Remove Hammer Case and examine the impact mechanism
parts. Replace any worn or broken parts.
Refer to Assembly of the Impact Mechanism.
Form 04584231-Edition 1
Advertisement
