TM-9-2320-280-20-2

TRUCK, UTILITY: M998 SERIES

TECHNICAL MANUAL; UNIT MAINTENANCE; VOLUME 2 OF 3

JANUARY 1996
TM-9-2320-280-20-2

  TM-9-2320-280-20-2 - Page 741 of 951

7-15. BRAKE LINES REPLACEMENT
This task covers:
a. Caliper to Tee Brake Line Removal
h. Proportioning Valve to Union Brake Line Installation
b. Caliper to Tee Brake Line Installation
i. Proportioning Valve to Front Tee Brake Line
c. Rear Brake Line Removal
Removal
d. Rear Brake Line Installation
j. Proportioning Valve to Front Tee Brake Line
e. Intermediate Brake Line Removal
Installation
f.
Intermediate Brake Line Installation
k. Caliper to Tee Support Brackets Removal
g. Proportioning Valve to Union Brake Line
l. Caliper to Tee Support Brackets Installation
Removal
INITIAL SETUP:
Tools
General mechanic’s tool kit:
automotive (Appendix B, Item 1)
Materials/Parts
Four tiedown straps (Appendix G, Item 310)
Locknut (Appendix G, Item 81)
Manual References
TM 9-2320-280-10
TM 9-2320-280-24P
Equipment Condition
• Hood raised and secured (TM 9-2320-280-10).
• Brake protection guards removed (para. 7-8.1).
a. Caliper to Tee Brake Line Removal
NOTE
• Removal procedures are basically the same for all caliper to tee
brake lines except M1123 and
“A2” vehicles.
• Brake lines on M1123 and “A2” series vehicles are not
disconnected at tee line.
• Steps 1 through 3 cover the right rear caliper to tee line
(M998/A1).
• Perform steps 4 through 9 for the left front caliper to tee line
(M998A2).
• Perform steps 10 through 14 for the left rear caliper to tee line
(M998A2).
1.
Disconnect brake line (1) from caliper (7).
2.
Disconnect brake line (1) from rear tee (5) at forward rear crossmember (4).
3.
Remove capscrew (6) and clamp (2) securing brake line (1) and vent line (3) to forward rear
crossmember (4) and remove brake line (1) from clamp (2).
CAUTION
Cover or plug all open lines and connections immediately after
disconnection to prevent contamination. Remove all plugs prior to
connection.
NOTE
• Have drainage container ready to catch brake fluid.
• Brake line replacement procedures for the service brake system
and the rear dual service/parking brake system are basically
the same. (Service brake system shown).
TM 9-2320-280-20-2
7-32
Change 3


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