6
MAINTENANCE SECTION
Assembly of the Impact Mechanism
1. Coat the Hammer (25) with Ingersoll–Rand No. 10 0
Grease.
2. Position th e Hammer inside the Hammer Frame (23)
and install the two Hammer Pins (24).
3. Install the Anvil (26) through the Frame and
Hammer until it bottoms on the lower part of the
Frame.
4. Set the assembled hammer mechanism onto the rotor
shaft spline.
5. Place the Hammer Case Gasket (18) over the
mechanism against the face of the Motor Housing.
6. Grease the Anvil and top of the Hammer Frame with
Ingersoll–Rand No. 100 Grease.
Assembly of the Tool
1. Place the Hammer Case Assembly (16) over the
mechanism assembly against the Gasket. Make
certain the Hammer Case Label is at the top of the
tool.
2. Install the Hammer Case Cap Screws (19) and Lock
Washers (20) and using an alternating pattern,
tighten the Cap Screws to 20–25 ft–lb (27–34 Nm)
torque.
TROUBLESHOOTING GUIDE
Trouble Pr obable Cause Solution
Low power Worn or broken Vanes Replace complete set of Vanes.
Worn or broken Cylinder and/or
scored End Plates Examine Cylinder and replace it if it is worn or
broken or if bore is scored or wavy. Replace End
Plates if they are scored.
Dirty motor parts Disassemble tool and clean all parts with a
suitable cleaning solution. Assemble the tool and
inject 3 cc of recommended oil into Inlet and run
tool to lubricate internal parts.
Motor will not run Incorrect assembly of motor Disassemble motor and replace worn or broken
parts and reassemble as instructed.
Insufficient lubricant in the
impact mechanism Remove Hammer Case Assembly and lubricate
impact mechanism.
Tool will not impact Broken or worn impact
mechanism parts Remove Hammer Case and examine impact
mechanism parts. Replace any worn or broken
parts.
Impact mechanism not assembled
correctly Refer to Assembly of the Impact Mechanism.