Ingersoll Rand — Disassembly of the Air Impact Wrench — 1/4'' Quick-Change Anvil Assembly
Repair & overhaul
From a Ingersoll Rand service manual — check it applies to your exact model before use.
Before you start
- The Retaining Ball (76) will fall free when the Retaining Sleeve (77) is removed.
Procedure
- Clamp the handle in a leather or copper-covered vise, square drive upward.
- Remove the four Hammer Case Cap Screws (65).
- Remove the Retaining Sleeve Stop (78).
- Remove the Retaining Sleeve, Retaining Ball, Retaining Sleeve Spring (75), Thrust Ring (74), and Thrust Ring Lock (73).
- Remove the Hammer Case Assembly (62).
- Grasp the Hammer Frame (60) and carefully lift off the entire impact mechanism, making certain not to drop the two Hammer Pins (61).
- If disassembly of the Impact Mechanism is not required, set the mechanism aside.
- Remove the Hammer Frame Washer (58) from the end of the Rotor (52) shaft. Remove the Air Impact Wrench from the vise.
Tools required
- leather or copper-covered vise Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Source: Ingersoll Rand service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.