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TM 10-4320-351-14
5.7.4 Replace Control Panel Toggle Switches. (Refer to figure 5-13.)
This procedure applies to replacement of the INTAKE HEATER, ENGINE START/RUN/STOP and FAULT LIGHTS
ON/BLACKOUT toggle switches (S2, S3 and S5) on the control panel. Although not interchangeable, the switches are
physically similar.
This task consists of:
a. Removal
b. Installation
INITIAL SET-UP:
Tools:
Materials/Parts Required:
Screwdriver, Cross Tip, #2
Tags, Electrical (Appendix F, Section II, Item 16)
(Appendix B, Section III, Item 3)
Screwdriver, Flat Blade, 1/4" x 4"
(Appendix B, Section III, Item 3)
Combination Wrench, 9/16"
(Appendix B, Section III, Item 3)
Equipment Condition:
Accessory module removed from system.
(para. 2.9)
a.
Removal.
(1)
Remove the twenty-four screws (1) and flat washers (2) that secure the control panel (3) to the control box.
(2)
Lift the control panel (3) from the control box and set on edge convenient to toggle switch to be replaced.
(3)
Tag all leads attached to the toggle switch (4).
(4)
Remove all leads from the toggle switch.
NOTE
Note mounting orientation of switch, using one of the switch terminal numbers as
a reference, to avoid installing the replacement switch upside down.
(5)
Remove nut (5), washer (6) and toggle switch (4) from control panel.
b.
Installation.
(1)
Insert toggle switch (4) in control panel (3) in the orientation noted during removal. Adjust rear nut (7) as
required to obtain a protrusion that just allows complete threading of front nut (5) and washer (6). Tighten
front nut and washer.
(2)
Install leads to switch terminals as tagged. Remove tags.
(3)
Install control panel (3) in control box with twenty-four screws (1) and flat washers (2).
5-33
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