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 557 of 1563

TM 9-2815-220-24

SMOKE GENERATOR WIRING HARNESSES (2DR) REPLACEMENT

(PN 12354467, 11672386)

0068 00

THIS WORK PACKAGE COVERS:

WP 0068 00-1

Removal, Cleaning, Inspection, Repair, and Installation

INITIAL SETUP:

Tools:

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

Mandatory Replacement Parts:

Lock washer (as needed) (item 92, WP 0175)

Lock washer (1) (item 93, WP 0175)

Tie wrap (as needed) (item 80, WP 0175)

Tie wrap (1) (item 81, WP 0175)

Personnel Required:

Track Vehicle Repairer (1) 63H10

Equipment Conditions:

Engine removed from vehicle and placed on a

flat stationary surface

REMOVAL

CAUTION

There are two configurations of the smoke generating system.

Early

systems use a dual solenoid configuration.

Newer/improved systems

use a single solenoid system.

The newer system removes the two

flywheel end mounted solenoids and replaces them with a single

solenoid at the damper end of the engine where it is cooler.

It was

found that fuel, trapped between the two solenoids and heated by the

close proximity of the exhaust, expanded and caused internal seals of

the solenoids to fail resulting in un-commanded smoke generation and

higher fuel consumption.

ECR CO-M6185 authorizes the change.

NOTE

This work package covers the maintenance of the smoke generation

wiring harness for the 2DR engine model with single or double fuel

solenoid configuration.

If you have a dual fuel solenoid configuration

requiring repair, it is recommended that you reference

ECR CO-M6185 and convert your smoke generation system to the

single solenoid configuration.