TM 10-5410-228-24
This task covers:
a. Removal
b. Installation
INITIAL SETUP
Tools/Test Equipment:
Equipment Conditions:
Shop Equipment, Automotive Maintenance and
Power shut off, power panel and rear control panel
Repair (Item 38, Appendix B)
tagged.
ECV parking brake set.
Materials/Parts:
ECU doors and covers open or removed as required
Two Lockwashers (Item 18, Appendix E)
(see para 2.14.1).
ECU work platform installed (reference TM
10-5410-228-10).
References:
TM 10-5410-228-10
a. Removal (Refer to Figure 2-62)
(1)
Tag and remove two screws (1) securing two leads (2) of cable assembly 1A4A1W1 from overheat
switch A1TS1 (3) mounted on heater element assembly (4).
(2)
Remove two nuts (5), two lockwashers (6), four flat washers (7) and two screws (8) securing
overheat switch (3) to heater element assembly (4). Discard two lockwashers (6).
b. Installation (Refer to Figure 2-62)
NOTE
Screws that attach leads to overhead switch are supplied with the switch.
(1)
Secure overheat switch (3) to heater element assembly (4) with two screws (8), four flat washers
(7), two new lockwashers (6) (Item 18, Appx E) and two nuts (5).
(2)
Install two leads (2) of cable assembly 1A4A1W1 on overheat switch A1TS1 (3) with two screws
(1). Remove tags from two leads (2).
1
8
7
2
7
6
3
5
4
HEARING PROTECTION REQUIRED
WITHIN 25 FEET OF THIS POINT.
178-1-M
Figure 2-62. Overheat Switch Replacement
Follow-on maintenance: Install or close ECU covers and doors per para 2.14.1, remove tags, apply power and
perform operational test, remove ECU work platform (reference TM 10-5410-228-10).
