Ingersoll Rand — Disassembly of the Impact Mechanism
A Ingersoll Rand service procedure — check it applies to your exact model before use.
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Before you start
- 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 arrows pointing upward
- 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
- The twin Hammers are now free to slide from the Hammer Frame. Be careful not to drop them
Procedure
- Set the mechanism, driver end up, on the workbench.
- With the mechanism sitting upright on the workbench, slowly rotate the Anvil in a clockwise direction until it comes up solid.
- Hold the Hammer Frame firmly and, without disturbing the Hammers, gently lift the Anvil, simultaneously rotating it clockwise about 1/8 of a turn, from the Hammer Frame.
- With the Anvil removed, lift out the two Hammer Pins.
Tools required
- Felt tipped pen
Specs & torque values
- Hammers
- Hammer Frame
- Anvil
- Hammer Pins
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.