TM-9-2320-260-20
TRUCK, 5-TON, 6X6, M809 SERIES (DIESEL)
TECHNICAL MANUAL; UNIT MAINTENANCE
APRIL 1995
TM-9-2320-260-20 - Page 913 of 1337
TM 9-2320-260-20
12-37. VAN HEATER AND EXHAUST REPLACEMENT
THIS TASK COVERS:
a. Removal
b. Installation
INITIAL SETUP
APPLICABLE MODELS
M820, M820A1, M820A2
EQUIPMENT CONDITION
•
Parking brake set (TM 9-2320-260-10)
MATERIALS/PARTS
• Battery ground cable disconneted (para. 4-48).
• Main power disconnected (TM 9-2320-260-10).
Twelve lockwashers
Antiseize tape (Appendix C, Item 30)
REFERENCES (TM)
TM 9-2320-260-10
TM 9-2320-260-20P
a. Removal
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
Remove eight screws (3), exhaust pipe (4), and two clamps (15) from van body (6) and heater exhaust
pipe (12).
Remove two screws (14), lockwashers (2), nuts (1), and clamps (15) from exhaust pipe (4). Discard
lockwashers (2).
NOTE
Tag all leads and lines for installation.
Remove nut (19) and fuel overflow line (23) from fitting (18).
Remove nut (24) and fuel receptacle line (25) from heater fuel valve (17).
Disconnect power receptacle connector (16) from heater (7).
Disconnect external fuel pump receptacle connector (26) from heater (7).
Disconnect room thermostat connector (27) from heater (7).
Remove four screws (8) and lockwashers (9) from heater bracket (10). Discard lockwashers (9).
Remove screw (22), ground strap (21), and lockwasher (20) from bracket (10) and heater (7). Discard
lockwasher (20).
NOTE
Assistant will help with step 10.
Remove heater (7) from van body (6).
Remove five screws (22) and lockwashers (20) from two brackets (10) and heater (7). Discard
lockwashers (20).
Remove heater exhaust pipe (12) from heater (7).
Remove four screws (5) and (13) and two seals (11) from van body (6).
12-76
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