TM 9-2320-387-24-2
25-58
Change 1
25-21. A/C HEATER/EVAPORATOR ASSEMBLY (FRONT) REPLACEMENT
This task covers:
a. Removal
b. Installation
a. Removal
INITIAL SETUP:
Applicable Models
M1114
Tools
General mechanic’s tool kit:
automotive (Appendix B, Item 1)
Materials/Parts
Lockwasher (Appendix G, Item 199)
Personnel Required
One mechanic
One assistant
Manual References
TM 9-2320-387-24P
Equipment Condition
• Air cleaner removed (para 3-12).
• Air distribution duct removed (para. 11-81).
• A/C system discharged (para. 25-15).
• Cooling system drained (para. 3-61).
Maintenance Level
Direct support
NOTE
Prior to removal, tag leads for installation.
1.
Remove four nuts (13) and cover (12) from heater/evaporator assembly (11).
2.
Disconnect three relay connectors (4) from relays (6).
3.
Remove screw (20), lockwasher (19), washer (18), vehicle ground lead (17), A/C ground lead (16),
A/C control module ground lead (15), and blower motor ground lead (14) from side of
heater/evaporator assembly (11). Discard lockwasher (19).
4.
Disconnect two leads (3) from circuit breaker (5).
5.
Disconnect two A/C control module leads (1) from A/C wiring harness leads (2).
6.
Remove nut (10), screw (7), and air vent control cable (9) from cable (8).
7.
Remove two harness leads (28) from heater/evaporator thermostat (29).
NOTE
Use a container to catch antifreeze solution.
8.
Loosen four clamps (21) and disconnect heater hoses (34) from body (22) and heater/evaporator
assembly (11).
9.
Disconnect low-pressure tube (26) from heater/evaporator assembly (11).
10.
Disconnect high-pressure tube (25) from heater/evaporator assembly (11).
11.
Loosen clamp (31) and remove drain hose (30) from heater/evaporator assembly (11).
12.
Remove two capscrews (33) and washers (32) from heater/evaporator assembly (11).
13.
Remove two nuts (23), washers (24), and spacers (27) from heater/evaporator assembly (11).
14.
Remove blower motor switch connector (35) from A/C wiring harness connector (38) and blower
motor fan connector (36) from vehicle wiring harness connector (37).
15.
Remove heater/evaporator assembly (11) from body (22).
