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 351 of 1563

TM 9-2815-220-24

COOLING FAN INSPECTION

0053 00

THIS WORK PACKAGE COVERS:

Inspection and Repair

INITIAL SETUP:

Tools:

Fan rotor gauge (item 43, WP 0176)

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

Magnifier (item 73, WP 0176)

Personnel Required:

Track Vehicle Repairer (1) 63H10

Equipment Conditions:

Engine removed from vehicle and placed on a

flat stationary surface

Fan vanes removed (WP 0054)

INSPECTION

WARNING

Do not file, sand, or otherwise remove metal from fan blades since this

will disturb the balance of the fan.

An unbalanced fan could explode

causing serious injury or death to personnel.

Any repair of a fan

blade must be done at Depot.

Gauge

Leading Edge

Trailing Edge

1. Inspect fan blades for erosion.

a. Place fan rotor gauge (item 43, WP 0176)

on the top surface of any suspect blade,

with the tabs in contact with the trailing

edge.

b. If the blade is eroded to the extent that

the gauge hides any part of the leading

edge of the blade, the fan must be

replaced.

WP 0053 00-1