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Assembly of the Impact Mechanism
Top Hammer
wide Bevel up
Bottom Hammer
Half-round Notch
on left
(Dwg. TPD652)
1. Coat Hammers (42) with a light film of Ingersoll Rand Impact
Wrench Grease No. 170.
2. Replace Hammers in Hammer Frame (40) exactly as they were
when you marked them prior to disassembly.
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.
Troubleshooting Guide
Trouble
Low power
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 Reverse Valve
Motor will not run
Incorrect assembly of motor
Insufficient lubricant in impact mechanism
Tool will not impact
Broken or worn impact mechanism parts
Impact mechanism not assembled correctly
Related Documentation
For additional information refer to:
Air Impact Wrench Product Safety Information Manual 04580916.
Air Impact Wrench Product Information Manual 04584835.
Air Impact Wrench Parts Information Manual 04584447.
Manuals can be downloaded from www.irtools.com.
4
Top Hammer
Half-round Notch
on right
Bottom Hammer
wide Bevel down
NOTICE
Probable Cause
3. Replace Hammer Pins (41).
4. Examine base of Anvil (48) and note its contour. While looking
down through Hammer Frame, swing the top 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 first Hammer. Swing the bottom Hammer in opposite
direction from the top Hammer and maneuver Anvil slightly until
it drops into bottom Hammer.
Assembly of the Impact Wrench
1. Set assembled hammer mechanism onto rotor shaft spline.
2. Place Hammer Case Gasket (35) over mechanism and against face
of Motor Housing.
3. Grease Anvil and top of Hammer Frame.
4. Place Hammer Case (33) over mechanism assembly against
Gasket.
5. Assemble Dead Handle (53) to Dead Handle Bracket (54). Insert
two Hammer Case Cap Screws (37) with Lock Washers (38)
through Bracket and install two Dead Handle Bracket Spacers (55)
on Screws. Position assembly against Hammer Case and thread
the Screws into Housing.
6. Thread remaining two Cap Screws and Lock Washers into
Housing and using an alternating pattern for all four fasteners,
tighten Screws between 20 and 25 ft–lb (27 and 34 Nm) torque.
7. Install a new Exhaust Silencer (27B) in Exhaust Deflector (27A)
and install the Exhaust Baffle (27C) in Deflector.
8. Position a new Exhaust Gasket (27D) against face of the Motor
Housing. Position the assembled Deflector against the Gasket
and secure it by tightening the two Deflector Screws (27E).
Using a clean, suitable, cleaning solution, in a well ventilated area,
clean Air Strainer Screen, Inlet Bushing and Exhaust Silencer.
Replace complete set of Vanes.
Examine Cylinder and replace it if it is worn or broken or if 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 Reverse Valve is fully engaged to the left or right.
Disassemble motor and replace worn or broken parts and reassemble
as instructed.
Remove Hammer Case Assembly and lubricate impact mechanism.
Remove Hammer Case Assembly and examine impact mechanism
parts. Replace any worn or broken parts.
Refer to Assembly of Impact Mechanism.
Solution
04584298_ed2
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