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2. Replace the Hammers in the Hammer Frame (34) 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. These Hammers must be installed with the
wide bevels facing the web of the Hammer Frame as
illustrated.
3. Replace the Hammer Pins (36).
4. Examine the base of the Anvil (40, 42 or 48) and note its
contour. While looking down through the 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 the opposite
direction from the top Hammer and maneuver the Anvil
slightly until it drops into the bottom Hammer.
Assembly of the Square Drive Anvil and Spline
Drive Anvil
1. Place the Hammer Frame Washer (33), hub side first,
over the hub of the Rotor and against the Front Rotor
Bearing.
2. Set the assembled impact mechanism down over the
splined hub of the Rotor. If the impact mechanism was
disassembled, refer to Assembly of Impact Mechanism.
3. Position the new Hammer Case Gasket (37) on Housing.
4. Work approximately 12 to 15 cc of Ingersoll Rand
No. 170 Grease into the impact mechanism.
5. Smear a thin film of Ingersoll Rand No. 170 Grease on
the inside surface of the Hammer Case Bushing (38) and
place the Hammer Case (39) down over the Anvil and
against the Motor Retainer.
6. Install the Backcap Bolts and tighten them to 10 to 12 ft-lb
(13 to 16 Nm) torque.
7. Remove the Impactool from the vise and inject 2 to 4 cc
of Ingersoll Rand No. 170 Grease into the Grease
Fitting (17).
Assembly of the Quick-Change Anvil
1. Place the Hammer Frame Washer (33), hub side first,
over the hub of the Rotor and against the Front Rotor
Bearing.
2. Set the assembled impact mechanism down over the
splined hub of the Rotor. If the impact mechanism was
disassembled, refer to Assembly of Impact Mechanism.
3. Position the new Hammer Case Gasket (37) on Housing.
4. Work approximately 12 to 15 cc of Ingersoll Rand
No. 170 Grease into the impact mechanism.
5. Smear a thin film of Ingersoll Rand No. 170 Grease on
the inside surface of the Hammer Case Bushing (38) and
place the Hammer Case (39) down over the Anvil and
against the Motor Retainer.
6. Install the Backcap Bolts (14) and tighten them to
10 to 12 ft-lb (13 to 16 Nm) torque.
7. Reinstall the rear Thrust Ring Lock (44) on the Quick
Change Anvil.
8. Place a dab of grease into the hole in the Quick Change
Anvil (42) to temporarily hold the Retaining Ball (47).
9. Slide the Retaining Sleeve (43), Retaining
Sleeve Spring (46), Thrust Ring (45), and front Thrust
Ring Lock (44) onto the Anvil.
10. Remove the Impactool from the vise and inject 2 to 4 cc
of Ingersoll Rand No. 170 Grease into the Grease
Fitting (17).
04584348_ed2
Assembly of the Tool
1. Wipe a thin film of the recommended grease on the inside
of the Hammer Case Bushing (38) and insert the
assembled impact mechanism into Hammer Case (39).
2. Secure the Hammer Case and impact mechanism by the
anvil (square drive) end in leather-covered or copper-
covered vise jaws. See Dwg. TPD1918.
(Dwg. TPD1918)
3. Install a new Hammer Case Gasket (37) on the Hammer
Case making sure that the holes in the gasket align with
the holes in the Hammer Case.
NOTICE
When installing optional Hanger Kit, place Gasket on the
Hammer Case followed by the Hanger.
4. Wipe a small amount of the recommended grease on the
flat side of the Hammer Frame Washer (33) and place it
on the splined face of the Hammer Frame (34) with the
hub end of the washer pointing up.
NOTICE
When installing optional Hanger Kit, place additional
washer provided between the Hammer Frame and
Hammer Frame Washer.
5. Set the fully assembled Motor Housing over the opening
in the Hammer Case. Insert the spline drive of the Rotor
into the splined hole of the impact mechanism. Make sure
of the wide section of the Hammer Case is just above the
Trigger.
6. Place a new Backcap Gasket (15) over the rear of the
Housing making sure that the holes in the Gasket align
with the holes in the Housing and that the profile of the
Gaskets matches the profile of Housing.
7. Place a Motor Clamp Washer (21) over the rear of the
motor with the convex side up and matching the large
outside diameter of the Rear End Plate.
8. Place the Backcap (16) over the back of the Housing
making sure that the Reverse Valve Lever (18) is in the
full-forward (clockwise) position with the lugs in the Lever
engaging the slots in the Reverse Valve. Make sure that
the index mark on the Reverse Valve lines up with the
index mark on the reverse valve bushing.
9. Install the four Backcap Bolts and tighten to 10-12 ft-lbs
(13-16 Nm) torque.
EN-5
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