TM-9-2320-280-20-3

TRUCK, UTILITY: M998 SERIES

TECHNICAL MANUAL; UNIT MAINTENANCE; VOLUME 3 OF 3

JANUARY 1996

TM-9-2320-280-20-3 - Page 552 of 1168

TM 9-2320-280-20-3

11-195. HEATER FUEL SYSTEM BLEEDING

This task covers:

Bleeding

INITIAL SETUP:

Applicable Models

Manual References

M997, M997A1, M997A2

TM 9-2320-280-24P

Tools

Equipment Condition

General mechanic’s tool kit:

Blower housing open (para. 11-198).

automotive (Appendix B, Item 1)

General Safety Instructions

Materials/Parts

Do not perform this procedure near fire, flames, or

Sealing compound (Appendix C, Item 45)

sparks.

Personnel Required

One mechanic

One assistant

WARNING

Diesel fuel is highly flammable. Do not perform this procedure

near fire, flames, or sparks. Severe injury or death will result.

NOTE

Q Have drainage container ready to catch fuel.

Q Apply compound to threads of all fuel line joints before

1. Disconnect heater fuel line (4) from heater (3).

2. Place end of fuel line (4) in drainage container.

3. Place heater rotary switch (1) on control box (2) to “RUN” position. Hold switch (1) in ‘RUN” position

until fuel flows free of air bubbles.

4. Place switch (1) to “OFF” position.

5. Connect fuel line (4) to heater (3).

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