TM 9-2320-280-20-3
11-199. DUCT DOOR CONTROL CABLES MAINTENANCE
This task covers:
a. Evaporator Intake Cable Removal
e. Heater Intake Cable Removal
b. Evaporator Intake Cable Installation
f. Heater Intake Cable Installation
c. Heater/Air-Conditioning Outlet Cable Removal
g. Cable Adjustment
d. Heater/Air-Conditioning Outlet Cable Installation
INITIAL SETUP:
Applicable Models
M997, M997A1, M997A2
Took
General mechanic’s tool kit:
automotive (Appendix B, Item 1)
Materials/Parts
Ten lockwashers (Appendix G, Item 118)
Six pushnuts (Appendix G, Item 170)
Manual References
TM 9-2320-280-10
TM 9-2320-280-24P
Equipment Condition
l Blower housing open (para. 11-198).
c Battery ground cable disconnected (para. 4-73).
l Control box levers positioned to UNIT OFF and
A/C-VENT (TM 9-2320-280-10).
a Evaporator Intake Cable Removal
1. Remove pushnut (3) and disconnect cable loop (5) from duct door arm (6). Discard pushnut (3).
2. Remove screw (1), lockwasher (2), and cable (7) from intake assembly (4). Discard lockwasher (2).
3. Remove pushnut (9) from cable loop (8) and control lever pin (10). Discard pushnut (9).
4. Remove screw (12), lockwasher (13), and cable (7) from control box bracket (11), and disconnect cable
loop (8) from control lever pin (10). Discard lockwasher (13).
b. Evaporator Intake Cable Installation
1. Connect cable loop (8) on control lever pin (10) with pushnut (9).
NOTE
It maybe necessary to adjust turnbuckle on cable to align control
cable clamp with control box bracket.
2. Install cable (7) on control box bracket (11) with lockwasher (13) and screw (12).
3. Connect cable loop (5) on duct door arm (6) with pushnut (3).
4. Install cable (7) on intake assembly (4) with lockwasher (2) and screw (1).
5. Proceed to Cable Adjustment, g. 2.
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