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EN-2 04584348_ed2
WARNING
Always wear eye protection when operating or performing maintenance on this tool.
Always turn off the air supply and disconnect the air supply hose before installing, removing or adjusting any accessory
on this tool, or before performing any maintenance on this tool.
Note: When reading the instructions, refer to exploded diagrams in Parts Information Manuals when applicable (see under
Related Documentation for form numbers).
Lubrication
Each time a Series 2925P1Ti and 2925P3Ti Impactool is
disassembled for maintenance and repair or replacement of
parts, lubricate the tool as follows:
1. Work approximately 12 to 15 cc of Ingersoll Rand
No. 170 Grease into the impact mechanism. Coat the
Anvil (40, 42 or 48) lightly with grease around the
Hammer Case Bushing (38). Inject approximately 2 to 4
cc of grease into the Grease Fitting (17).
2. Use Ingersoll Rand No. 50 Oil for lubricating the motor.
Inject approximately 1 to 2 cc of oil into the air inlet before
attaching the air hose.
Disassembly
General Instructions
1. Do not disassemble the tool any further than necessary
to replace or repair damaged parts.
2. Whenever grasping a tool or a part in a vise, always use
leather-covered or copper-covered vise jaws to protect
the surface of the part and help prevent distortion. This is
particularly true of threaded members and housings.
3. Do not remove any part which is a press fit in or on a
subassembly unless the removal of that part is necessary
for repair or replacement.
4. Do not disassemble the Impactool unless you have a
complete set of new gaskets and o-rings for replacement.
Disassembly of the Hammer Case and Anvil
Assembly
NOTICE
Before disassembling this tool, clamp the anvil drive in
leather-covered or copper-covered vise jaws with the
Backcap (16) pointing upward. See Drawing TPD1918.
(Dwg. TPD1918)
1. Unscrew and remove the four Backcap Bolts (14).
2. Lift the assembled Motor Housing (1) off of the Hammer
Case (39). Make sure that you hold the Backcap in
position on the Housing and that the motor does not
come out of the Housing.
3. Remove the Hammer Case Gasket (37) and replace with
a new one when assembling the Hammer Case to the
Housing.
4. Remove the Hammer Case and impact mechanism
assembly from the vise. Remove the Hammer Frame
Washer (33) from the rear of the Hammer Frame and set
it aside on a clean bench.
5. Place the impact mechanism on a bench with the Anvil
pointing upward. Make sure that the Hammer Pins (36)
do not drop out of the Hammer.
6. Lift the Hammer Case off of the Anvil (40 or 48). If it is
unnecessary to disassemble the impact mechanism, set
it aside intact.
Disassembly of the Quick-Change Anvil
1. Clamp the handle of the tool in leather-covered or copper-
covered vise jaws with the Quick-Change Anvil (42) upward.
2. Remove front Thrust Ring Lock (44) and Thrust Ring (45).
NOTICE
The Retaining Ball (47) will fall free once the Retaining
Sleeve (43) is removed.
3. Remove the Retaining Sleeve Spring (46), Retaining
Sleeve, Retaining Ball, and the rear Thrust Ring Lock.
4. Remove the four Backcap Bolts (14). While lightly tapping
on the end of the Anvil with a plastic hammer, lift off the
Hammer Case (39).
5. Remove and discard the Hammer Case Gasket (37).
6. Grasp the Hammer Frame (34) and carefully lift off entire
impact mechanism making certain not to drop the two
Hammer Pins (36). If it is necessary to disassemble the
impact mechanism, refer to Disassembly of the Impact
Mechanism. If it is unnecessary to disassemble the
impact mechanism, set it aside intact.
7. Remove the Rear Hammer Frame Washer (33).
Disassembly of the Impact Mechanism
1. Set the mechanism, driver end up, on the workbench.
NOTICE
Note the twin Hammers within the Hammer Frame. These
are identical but must be placed in the Hammer Frame in a
particular relationship. Using a felt tipped pen, mark the top
Hammer “T
↑
” and the bottom Hammer “B
↑
” with the arrows
pointing upward. Mark both Hammers on the same end.
2. With the mechanism sitting upright on the workbench,
slowly rotate the Anvil in a clockwise direction until it
comes up solid.
NOTICE
If you continue to rotate the Anvil, it will cam the
Hammers out of engagement. Do not do this; merely
rotate the Anvil until it comes up solid.