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Model 2920B9
The Retaining Ball (52) is held in the hole in the Anvil (47) by
the Retaining Sleeve. Once the Retaining Sleeve is removed,
the Retaining Ball will fall free.
1. Grasp the Angle Housing (102) in leather-covered or copper-
covered vise jaws, bevel gear end facing upward.
2. Coat the Bevel Gear Spindle (112) with Ingersoll Rand No. 170
Grease and insert the Spindle into the bushing of the angle head.
3. Install the Bevel Gear (111) and Bevel Gear Bearing (107).
4. Using snap ring pliers install the Bevel Gear Bearing Retainer
(113) into the groove in the angle head. Remove the Angle
Housing from the vise.
5. Grasp the Angle Housing in a vise, bevel pinion end facing
upward.
6. Insert the bevel pinion into the Angle Housing until it meshes
with the Bevel Gear. Install the Bevel Pinion Spacer (108), Bevel
Pinion Bearing (107) and four Bevel Pinion Clamp Washers (110).
Troubleshooting Guide
Trouble
Low power
Dirty Inlet Bushing or Air Strainer Screen and/or
Exhaust Silencer
Worn or broken Vanes
Worn or broken Cylinder and/or scored End Plates
Dirty motor parts
Improper positioning of Reverse Valve
Motor will not run
Incorrect assembly of motor
Insufficient lubricant in the impact mechanism
Tool will not impact
Broken or worn impact mechanism parts
Impact mechanism not assembled correctly
Related Documentation
For additional information refer to:
Product Safety Information Manual 04581450.
Product Information Manual 04584793.
Parts Information Manual 04584405.
Manuals can be downloaded from ingersollrandproducts.com
04584264_ed3
NOTICE
Probable Cause
7. Screw the Angle Housing Connector (114) into the Angle Housing
and tighten the Connector using a spanner wrench inserted into
one of the connector lock pin holes.
8. Install the Bevel Pinion Driver (109) onto the Bevel Pinion.
9. Install the two Connector Lock Pins into the two corresponding
holes in the Angle Housing Connector.
10. Install the Retaining Sleeve Spring (117) onto the Angle Housing
until it butts against the Connector Lock Pins.
11. Insert the three Connector Retaining Balls (119) into their
respective holes in the Angle Housing Connector.
12. Slide the Connector Retaining Sleeve (116) over the Angle
Housing Connector and while pushing the Sleeve toward the
square drive anvil, install the Connector Retaining Sleeve Stop
(118). Remove the Angle Housing Assembly from the vise.
13. Grasp the Angle Attachment and slide the Connector Retaining
Sleeve toward the square drive anvil. Install the Angle
Attachment on the tool in one of six different positions relative to
the in-line handle. Release the Connector Retaining Sleeve to lock
the Angle Attachment onto the tool.
14. Inject approximately 9 cc of Ingersoll Rand No. 170 Grease into
the Grease Fitting on the Angle Housing.
Using a clean, suitable, cleaning solution, in a well ventilated
area, clean Air Strainer Screen, Inlet Bushing and Exhaust
Silencer.
Replace complete set of Vanes.
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.
Disassemble tool and clean all parts with a clean, suitable,
cleaning solution, in a well-ventilated area. Reassemble tool as
instructed in this manual.
Make certain that Reverse Valve is fully engaged to the left
or right.
Disassemble motor and replace worn or broken parts and
reassemble as instructed.
Remove Hammer Case Assembly and lubricate impact
mechanism.
Remove Hammer Case and examine impact mechanism parts.
Replace any worn or broken parts.
Refer to Assembly of the Impact Mechanism.
Solution
5
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