TM 9-2320-280-20-3
11-200. EVAPORATOR DRAIN TUBE REPLACEMENT
This task covers:
a. Removal
b. Installation
INITIAL SETUP:
Applicable Models
Materials/Parts
M997, M997A1, M997A2
Tiedown strap (Appendix G, Item 241)
Took
Manual References
General mechanic’s tool kit:
TM 9-2320-280-24P
automotive (Appendix B, Item 1)
Equipment Condition
Blower housing open (para. 11-198).
NOTE
Perform steps 1 through 3 for old configuration only.
1. Disconnect flex tube (2) from evaporator drain pan (1).
2. Disconnect flex tube (2) from nipple (3).
3. Remove clamp (4) and nipple (3) from drain tube (5).
NOTE
Perform steps 4 through 8 for new configuration only.
4. Remove clamp (10) from drain tube (5).
5. Remove elbow (9) from drain tube (5).
6. Remove clamps (6) and (7) from hose (8).
7. Remove elbow (9) from hose (8).
8. Disconnect hose (8) from evaporator drain pan (1).
9. Remove tiedown strap (12) from harness (13) and drain tube (5). Discard tiedown strap (12).
10. Remove screw (14), clamp (17), and drain tube (5) from body (15).
11. Pull drain tube (5) through cab ceiling grommet (11) and cab floor grommet (16).
b. Intallation
1.
2.
3.
4.
5.
6.
7.
8.
9.
Install drain tube (5) through cab floor grommet (16) and cab ceiling grommet (11). Allow
approximately 2 in. (5 cm) of drain tube (5) to extend through cab floor grommet (16).
Install drain tube (5) on body (15) with clamp (17) and screw (14).
Install drain tube (5) on harness (13) with tiedown strap (12).
NOTE
Perform steps 4 through 6 for new configuration only.
Connect hose (8) to evaporator drain pan (1) with clamp (7).
Install elbow (9) on hose (8) with clamp (6).
Install elbow (9) on drain tube (5) with clamp (10).
NOTE
Perform steps 7 through 9 for old configuration only.
Install nipple (3) in drain tube (5) with clamp (4).
Connect flex tube (2) to nipple (3).
Connect flex tube (2) to evaporator drain pan (1).
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