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Assembly of the Quick–Change Anvil
1. Place the Rear Hammer Frame Washer (41) or (44),
hub side first, over the hub of the Rotor and against
the Front Rotor Bearing.
2. Set the assembled impact mechanism down over the
splined hub of the Rotor. If the impact mechanism
was disassembled, refer to Assembly of the Impact
Mechanism.
3. Position the new Hammer Case Gasket (36) or (39) on
the Housing.
4. Work approximately 12 to 15 cc of Ingersoll–Rand
No. 100 Grease into the impact mechanism.
5. Smear a thin film of Ingersoll–Rand No. 100 Grease
on the inside surface of the Hammer Case Bushing
(38) or (41) and place the Hammer Case (37) or (40)
down over the Anvil and against the Motor Retainer.
6. Reinstall the rear Thrust Ring Lock (49) or (52) on
the Quick Change Anvil (47) or (50).
7. Place a dab of grease into the hole in the Quick
Change Anvil to temporarily hold the Retaining
Ball (52) or (55).
8. Slide the Retaining Sleeve (48) or (51), Retaining
Sleeve Spring (51) or (54), Thrust Ring (50) or (53),
and front Thrust Ring Lock (49) or (52) onto the
Anvil.
Model 2920B9
Reassembly of the 2920B9 is exactly the same as
the 2920B with the exception of the 90 degree
Square Drive Assembly. The following instructions
pertain to that assembly:
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. 100 Grease and insert the Spindle
into the bushing of the angle head.
MAINTENANCE SECTION
3. Install the Bevel Gear (111) and Bevel Gear
4. Using snap ring pliers install the Bevel Gear Bearing
5. Grasp the Angle Housing in a vise, bevel pinion end
6. Insert the bevel pinion into the Angle Housing until it
7. Screw the Angle Housing Connector (114) into the
8. Install the Bevel Pinion Driver (109) onto the Bevel
9. Install the two Connector Lock Pins into the two
10. Install the Retaining Sleeve Spring (117) onto the
11. Insert the three Connector Retaining Balls (119) into
12. Slide the Connector Retaining Sleeve (116) over the
13. Grasp the Angle Attachment and slide the Connector
14. Inject approximately 9 cc of Ingersoll–Rand No. 100
22
Bearing (107).
Retainer (113) into the groove in the angle head.
Remove the Angle Housing from the vise.
facing upward.
meshes with the Bevel Gear. Install the Bevel Pinion
Spacer (108), Bevel Pinion Bearing (107) and four
Bevel Pinion Clamp Washers (110).
Angle Housing and tighten the Connector using a
spanner wrench inserted into one of the connector
lock pin holes.
Pinion.
corresponding holes in the Angle Housing Connector.
Angle Housing until it butts against the Connector
Lock Pins.
their respective holes in the Angle Housing
Connector.
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.
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.
Grease into the Grease Fitting on the Angle Housing.
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