Ingersoll Rand — Assembly 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
- If you are installing new Hammers or want to change the location of the existing Hammers to utilize both impacting surfaces, slide the Hammers in the Hammer Frame so that the half-round notch on one Hammer is located on one side of the Frame and the half-round notch on the other Hammer is located on the other side of the Frame. These Hammers must be installed with the wide bevels facing the web of the Hammer Frame
Procedure
- Coat the Hammers (39) with a light film of Ingersoll Rand No. 170 Grease.
- Replace the Hammers in the Hammer Frame (37) exactly as they were when you marked them prior to disassembly.
- Replace the Hammer Pins (38).
- Examine the base of the Anvil (40) and note its contour. While looking down through the Hammer Frame, swing the top Hammer to its full extreme one way or another until you can match the contour of the Anvil. Enter the Anvil into the Hammer Frame and through the first Hammer. Swing the bottom Hammer in the opposite direction from the top Hammer and maneuver the Anvil slightly until it drops into the bottom Hammer.
Specs & torque values
- Hammers (39)
- Ingersoll Rand No. 170 Grease
- Hammer Frame (37)
- Hammer Pins (38)
- Anvil (40)
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.