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 TM 9-2320-312-24-1
HEATER/AC CONTROLS REPLACEMENT
THIS WORK PACKAGE COVERS
Removal, Installation
INITIAL SETUP
Maintenance Level
Tools and Special Tools
Unit
Tool kit, general mechanic's (Item 35, WP 0166 00)
MAC Reference
Equipment Condition
Group 140
Battery disconnect switch in OFF position
RPSTL Reference
Group 140, Figure 12
NOTE
Replacement of heater/AC controls (heater temperature control, defroster/heater control or fresh/recir-
culate air control) at instrument panel is the same. Replacement differs only in location of connection
point of control cable at heater/AC unit.
This work package describes replacement of heater temperature control. Control on instrument panel
connects, by cable, to water shutoff valve of heater/AC unit.
REMOVAL
1.
Open heater/AC unit access door (1) at front of cab.
2.
At valve (6), remove screw (5) from clamp (4) and valve.
3.
Remove retainer nut (2) and disconnect cable (3) from shaft of valve (6).
4
3
2
1
5
6
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