5-7 SWITCH BOX ASSEMBLY MAINTENANCE.
This task covers: a. Replacement
Tool Kit, General Mechanics
(item 1, appendix B)
Multimeter, AN/PSM-45 (item 2, appendix B)
Both generator sets shut down, para 2-5.3.1.
Trailer support devices are
lowered, paragraph 2-3.2.1.
Refer to paragraph 4-12 to remove and install switch box assembly.
1. Disassemble switch box assembly for test as follows:
Remove 21 screws (1, figure 5-11), flat washers (3), and lock washers (2) that secure the switch box
cover (4) to the switch box assembly.
The control panel connector P3 is connected to connector J4. Movement of the switch box
cover is limited. To prevent damage to control panel wiring harness, use caution
removing switch box cover. Failure to observe this caution can result in equipment
Carefully position switch box cover (4) in front of switch box.
Disconnect P3 (8) from J4 (11) and set switch box cover (4) out of the way.
2. Remove two lamps for Unit A and two lamps for Unit B from switch box control panel.