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 657 of 1563

TM 9-2815-220-24

FUEL BACKFLOW VALVE REPLACEMENT

0081 00

INSTALLATION

1. Install fittings and orient as they were in the original backflow valve.

NOTE

Metal tube between backflow valve and fuel pump (2CA and 2 DA)

must be installed as backflow valve is fastened to bracket.

2. Install backflow valve (7) onto bracket (8).

a. Loosely connect fuel pump fuel inlet tube (3) at both ends.

b. Secure backflow valve using two screws (4), new lock washers (5) (item 92,

WP 0175), and flat washers (6).

3. Tighten fuel pump fuel inlet tube (3) at both ends.

4. Connect manifold heater fuel line (2).

5. Connect fuel inlet hose (1).

3

2

1

1

2

4, 5, 6

4, 5, 6

3

8

7

7

8

2CB and 2DR Configuration

2CA and 2DA Configuration

END OF WORK PACKAGE

WP 0081 00-3 (4 blank)