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 741 of 1563

TM 9-2815-220-24

SENDING UNITS AND SWITCH REPLACEMENT (2DR)

0093 00

THIS WORK PACKAGE COVERS:

Removal, Cleaning, Inspection, and Installation

INITIAL SETUP:

Tools:

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

Expendable and Durable Items:

Marker tag (item 39, WP 0173)

Thread sealing tape (item 41, WP 0173)

Personnel Required:

Track Vehicle Repairer (1) 63H10

Equipment Conditions:

Engine removed from vehicle and placed on a

flat stationary surface.

Wiring harness disconnected and marked

(WP 0059).

REMOVAL

NOTE

Use marker tags (item 39, WP 0173), on all electrical leads to aid in

proper connection at installation.

Incorrect connection of wiring

harness leads can cause false engine readings.

1. Remove switches (1, 2) at crankcase (3).

a. Remove engine oil pressure sending unit (1) from tee (4).

b. Remove auxiliary generator switch (2) from pipe elbow (5).

c. Remove pipe elbow (5) from tee (4).

d. Remove tee (4) from pipe nipple (6).

e. Remove pipe nipple (6) from pipe reducer (7).

f.

Remove pipe reducer (7) from pipe elbow (8).

g. Remove pipe elbow (8) from crankcase oil galley port (A).

3

8

1

5

6

2

4

7

A

WP 0093 00-1