TM-9-2320-260-34-1

TRUCK, 5-TON, 6X6, M809 SERIES (DIESEL)

TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE; VOLUME 1 OF 2

JULY 1994

TM-9-2320-260-34-1 - Page 345 of 657

TM 9-2320-260-34-1

5-10. PATTERN TEST

THIS TASK COVERS:

a. Spray Pattern Tester Setup

b. Spray Pattern Test

INITIAL SETUP

APPLICABLE MODELS

All

SPECIAL TOOLS

Adjusting wrench (Appendix B, Item 154)

Locknut wrench (Appendix B, Item 25)

TEST EQUIPMENT

Injector test stand (Appendix B, Item 26)

Spray pattern tester (Appendix B, Item 22)

MATERIALS/PARTS

Retaining ring (Appendix D, Item 342)

Screen (Appendix D, Item 377)

Diesel fuel (Appendix C, Item 13)

REFERENCES (TM)

TM 9-2320-260-10

TM 9-2320-260-34P-1

EQUIPMENT CONDITION

l Parking brake set (TM 9-2320-260-10).

l Fuel injectors removed (para. 5-6).

GENERAL SAFETY INSTRUCTIONS

Keep hands away from spray stream when fuel is

forced from injector spray holes.

a. Spray Pattern Tester Setup

NOTE

Position pattern tester on or near injection test stand, or other

source of 22 psi (152 kPa) constant fuel pressure, so injector inlet

connection of test stand will reach injector to be spray checked.

Use injector test oil or diesel fuel to perform test.

1. Attach inlet hose (3) on adapter (2).

2. Attach drain hose (4) to adapter base (5) and test stand drain area (1).

5-25