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Home›Repair guides›Disassembly of the Hammer Case and Anvil Assembly

Ingersoll Rand — Disassembly of the Hammer Case and Anvil Assembly

A Ingersoll Rand service procedure — check it applies to your exact model before use.

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Before you start

  • Before disassembling this tool, clamp the anvil drive in leather-covered or copper-covered vise jaws with the Handle (1) pointing upward

Procedure

  1. Unscrew and remove the four Handle Bolts (2).
  2. Lift the assembled Motor Housing (30) off of the Hammer Case (43). 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 (41) 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 (36) 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 (38) do not drop out of the Hammer.
  6. Lift the Hammer Case off of the Anvil (40). If it is unnecessary to disassemble the impact mechanism, set it aside intact.

Tools required

  • Leather-covered or copper-covered vise jaws

Specs & torque values

  • Handle Bolts (2)
  • Motor Housing (30)
  • Hammer Case Gasket (41)
  • Hammer Frame Washer (36)
  • Hammer Pins (38)
  • Anvil (40)
  • Hammer Case (43)

Source: manual:04584355ed3c.pdf. Figures and steps are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.