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Assembly of the Reverse Valve
1. Coat a new Reverse Valve O-Ring (28) with O-Ring
lubricant and install it in the groove on the Reverse
Valve (29).
2. Install the Reverse Valve in the reverse valve bushing
with the slotted end trailing, making sure that the index
mark on the Reverse Valve is aligned with the index mark
on the Bushing. See Dwg. TPD1912-1.
REVERSE LEVER IN
FORWARD POSITION
(Dwg. TPD1912-1)
NOTICE
The Reverse Valve must be installed and indexed with
the bushing as directed in Step 2 and Dwg. TPD1912-1.
Failure to do so will cause improper operation of the
Reverse Valve.
3. Insert the Reverse Lever (16) through the rear of the
Backcap (14).
4. Slide the Reverse Lever Spring (18) over the shaft of the
Reverse Lever and secure the Spring and Reverse Lever
by installing the Reverse Lever Snap Ring (17) in the
groove in the shaft of the Reverse Lever. Rotate the
Reverse Lever so that it is pointing to the symbol for
FORWARD (clockwise)
Assembly of the Impact Mechanism
1. Coat the Hammer (38) with a light film of Ingersoll Rand
No. 170 Grease.
2. Slide the Hammer into the Hammer Frame (36) exactly
as it was when you marked it prior to disassembly.
NOTICE
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.
3. Replace the Hammer Pins (37).
4. Examine the base of the Anvil (39) and note its contour.
While looking down through the 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.
Assembly of the Anvil
1. Place the Hammer Frame Washer (30), 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 the Impact
Mechanism.
3. Position the new Hammer Case Gasket (34) on the
Housing.
4. Work approximately 12 to 15 cc of Ingersoll Rand
No. 170 Grease into the impact mechanism.
EN-4
ALIGN REVERSE VALVE
TIMING MARK WITH
MARK ON REVERSE-
VALVE BUSHING
LOCATED IN HOUSING
5. Smear a thin film of Ingersoll Rand No. 170 Grease on
the inside surface of the Hammer Case Bushing (36) and
place the Hammer Case (35) 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 Impact Wrench from the vise and inject 2 to
4 cc of Ingersoll Rand No. 170 Grease into the Grease
Fitting (15).
Assembly of the Tool
1. Wipe a thin film of the recommended grease on the inside
of the Hammer Case Bushing (36) and insert the
assembled impact mechanism into the Hammer
Case (35).
2. Secure the Hammer Case and impact mechanism by the
anvil (square drive) end in leather-covered or copper-
covered vise jaws. See Dwg. TPD1922.
(Dwg. TPD1922)
3. Install a new Hammer Case Gasket (34) 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 (34) on
the Housing.
4. Wipe a small amount of the recommended grease on the
flat side of the Hammer Frame Washer (30) and place it
on the splined face of the Hammer Frame (31) 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 (13) 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 the Housing.
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