TM-9-2815-220-24

AVDS-1790 2CA, 2DA and 2DR Air-Cooled 12-Cylinder Diesel Engines

TECHNICAL MANUAL; UNIT, DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE MANUAL FOR AVDS-1790 2CA, 2DA and 2DR Air-Cooled 12-Cylinder Diesel Engines

TM-9-2815-220-24 - Page 1187 of 1563

TM 9-2815-220-24

CRANKSHAFT DAMPER REPAIR

0140 00

THIS WORK PACKAGE COVERS:

Removal, Inspection, Repair, Installation

INITIAL SETUP:

Tools and Special Tools:

General mechanic’s tool kit (item 121, WP 0176)

Inside micrometer caliper set (item 16, WP 0176)

Mechanical puller (3) (item 90, WP 0176)

Expendable Materials:

Cleaning compound, solvent (item 8, WP 0173)

Cloth, abrasive, crocus (item 9, WP 0173)

Fabricated Items

Tapered bolt

(item 16 WP 0177)

Personnel Requirements:

Track Vehicle Repairer (2) 63H10

Equipment Conditions:

Engine on maintenance stand (WP 0130)

2CA, 2DA: Fuel Supply Pump removed

(WP 0048)

2CA, 2DA: Fuel Supply Pump Drive removed

(WP 0110)

2DR: Fuel Supply Pump removed (WP 0049)

2DR: Power Takeoff Drive Shaft removed

(WP 0111)

Damper Housing removed (WP 0151)

REMOVAL

WARNING

The crankshaft damper is heavy and awkward.

It requires a two-man

lift or a suitable lifting device.

Use a 4-1/4 to 4-1/2-inch long bolt with

the head cut off and tapered (item 16 WP 0177) to facilitate

installation and removal.

CAUTION

The vibration damper wheel is not

a flywheel.

It has hydraulic oil

inside.

Prying or hammering on it

to help in removal or installation

will damage it.

Do not use pry bars, drifts, or

hammers to install or remove the

damper wheel.

WP 0140 00-1