REPAIR OF COMPONENT PARTS - TM-9-2920-224-34-P0057

TM 9- 2920- 224- 34&P

REPAIR OF COMPONENT PARTS

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THIS WORK PACKAGE COVERS:

Repair

INITIAL SETUP:

Tools and Special Tools

Materials/Parts

General mechanic's tool kit (item 1, WP 0017 00)

Sandpaper (item 4, WP 0016 00)

Caliper set, micrometer, outside

Goggles (item 7, WP 0016 00)

Rubber gloves (item 8, WP 0016 00)

Hacksaw blade (item 13, WP 0017 00)

Equipment Conditions

Undercutting machine (item 15, WP 0017 00)

Generator components on workbench

Threading set, screw (item 16, WP 0017 00)

Armature turning center tool (item 17, WP 0017 00)

Stone, sharpening (item 18, WP 0017 00)

Lathe, machinist

1. Generator Support Assembly, Fan Adapter, and Air Intake Housing.

a. Smooth minor scratches, burrs, and dents on machined mating surfaces using a fine mill file.

b. Repair damaged threads in generator support assembly by chasing with correct size tap.

Repair damaged threads in fan housing and stator housing by chasing with correct size tap.

2. Armature Commutator.

a. Sharpen lathe cutting tool (1) to the dimensions shown. The tool must be extremely sharp. After grinding,

hone the tool with a fine hard stone to ensure a smooth cut during the turning operations.

b. Temporarily install a serviceable annular ball bearing (2) on commutator end of armature shaft (3). Install

armature in lathe with armature turning center tool (4). Position sharpened cutting tool (1) as shown. Point of

cutting tool should be 1/32 inch below centerline of armature shaft.

NOTE: ALL DIMENSIONS SHOWN ARE IN INCHES

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