TM 9-2320-280-20-2
4-127. HEAT/AIR-CONDITIONING CONTROL PANEL RELAY AND SWITCH
MAINTENANCE (M997, M997A1, M997A2)
This task covers:
a.
b.
c.
d.
e.
f.
g.
Heat A/C Panel Removal
h. Fuel Hi-Low Switch Installation
Heat A/C Panel Installation
i. Fan Hi-Low Switch Removal
Heater Run-Start Switch Removal
j. Fan Hi-Low Switch Installation
Heater Run-Start Switch Installation
k. A/C On-Off Switch Removal
Heat On Light Removal
l. A/C On-Off Switch Installation
Heat On Light Installation
m. Rollover Switch Removal
Fuel Hi-Low Switch Removal
n. Rollover Switch Installation
INITIAL SETUP:
Applicable Models
Manual References
M997, M997A1, M997A2
TM 9-2320-280-24P
Tools
Equipment Condition
General mechanic’s tool kit:
Battery ground cable disconnected (para. 4-73).
automotive (Appendix B, Item 1)
Materials/Parts
Thirteen lockwashers (Appendix G, Item 113)
a. Heat A/C Control Panel Removal
Remove four screws (1), two bolts (6), lockwashers (5) and panel (2) from harness bracket (4) and control
box (3). Pull panel (2) away from control box (3). Discard lockwashers (5).
b. Heat A/C Control Panel Installation
N O TE
Check for loose or disconnected wires before installing panel.
Install panel (2) on harness bracket (4) and control box (3) with two lockwashers (5), bolts (6), and four
screws (1).
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