TM 10-3930-675-24-2
TOPHANDLER JUNCTION BOX MAINTENANCE
THIS WORK PACKAGE COVERS
Tophandler Electronic Control Unit (ECU): Removal,
Relay: Removal, Installation
Installation
INITIAL SETUP
References
Maintenance Level
WP 0048 00
Organizational
Tools and Special Tools
Equipment Condition
Tool Kit, General Mechanic's (Item 128, WP 0289
Master battery switch in OFF position
Materials/Parts
TOPHANDLER ELECTRONIC CONTROL UNIT (ECU) REMOVAL
NOTE
Tophandler ECU is located inside junction box at end of boom, above tophandler. Tophandler ECU is
identified as no. 791 on system electrical diagrams (WP 0048 00).
1.
Loosen six screws (1) and remove cover (2) from tophandler junction box (4). Three circuit breakers (5) should be in
ON position.
2.
Inspect rubber seal (3) on cover (2). Replace seal only if damaged.
2
1
3
5
4