TM-9-2320-260-20
TRUCK, 5-TON, 6X6, M809 SERIES (DIESEL)
TECHNICAL MANUAL; UNIT MAINTENANCE
APRIL 1995
TM-9-2320-260-20 - Page 667 of 1337
TM 9-2320-260-20
8-22. AIR COUPLINGS REPLACEMENT
THIS TASK COVERS:
a. Front Air Couplings Removal
e. Rear Air Couplings Removal
b. Front Air Couplings Installation
(except M813, M813A1, M815, M819)
c. Rear Air Couplings Removal
f. Rear Air Couplings Installation
(M813, M813A1, M815, M819)
(except M813, MW3A1, M815, M819)
d. Rear Air Couplings Installation
(M813, M813A1, M815, M819)
INITIAL SETUP
APPLICABLE MODELS
EQUIPMENT CONDITION
All
Ž Parking brake set (TM 9-2320-260-10).
MATERIALS/PARTS
Ž Air reservoirs drained (TM 9-2320-260-10).
Six locknuts
GENERAL SAFETY INSTRUCTIONS
Three lockwashers
Do not disconnect air lines before draining air
Cotter pin
reservoirs.
Antiseize tape (Appendix C, Item 30)
REFERENCES (TM)
TM 9-2320-260-10
TM 9-2320-260-20P
NOTE
Right and left hand air couplings are removed basically the same,
This procedure covers the left side only.
I
a. Front Air Couplings Removal
WARNING
Do not disconnect air lines before draining air reservoir. Small
parts under pressure may shoot out with high velocity, causing
injury to personnel.
1. Remove cotter pin (2) and chain (1) from fender support (3). Discard cotter pin (2).
2. Remove dummy coupling (18) from air coupling (17).
3. Remove air coupling (17) and nipple (16) from valve (15).
4. Remove air line (10), adapter (9), valve (4), and nipple (5) from elbow (6).
5. Remove elbow (6) from coupling (13).
6. Remove nut (7), lockwasher (8), coupling (13), bracket (12), and identification plate (11) from fender
support (3). Discard lockwasher (8).
7. Remove coupling (13) and elbow (14) from valve (15).
8-42
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