Maintenance Section; General Instructions; Disassembly Of The Hammer Case And Anvil Assembly - Ingersoll-Rand 2161P Series Instructions Manual

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.
LUBRICATION
Each time a Series 2161P or 2171P 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. 100 Grease into the impact mechanism. Coat the
Anvil (38) lightly with grease around the Hammer
Case Bushing (36). Inject approximately 2 to 4 cc of
grease into the Grease Fitting (15).
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
Before disassembling this tool, clamp the anvil drive in
leather–covered or copper–covered vise jaws with the
Backcap (14) pointing upward. See Drawing TPD1922.
* Registered trademark of Textron.

MAINTENANCE SECTION

1.
2.
3.
4.
5.
6.
11
Using a TorxR* Number 27 drive wrench or bit,
unscrew and remove the four Backcap Bolts (12).
Lift the assembled Motor Housing (1) off of the
Hammer Case (35). Make sure that you hold the
Backcap in position on the Housing and that the motor
does not come out of the Housing.
Remove the Hammer Case Gasket (34) and replace
with a new one when assembling the Hammer Case to
the Housing.
Remove the Hammer Case and impact mechanism
assembly from the vise. Remove the Hammer Frame
Washer (30) from the rear of the Hammer Frame and
set it aside on a clean bench.
Place the impact mechanism on a bench with the Anvil
( pointing upward. Make sure that the Hammer Pins
(33) do not drop out of the Hammer.
Lift the Hammer Case off of the Anvil (38). If it is
unnecessary to disassemble the impact mechanism, set
it aside intact.
(Dwg. TPD1922)