ARMY TM 9-6115-639-13
AIR FORCE TO 35C2-3-386-51
MARINE CORPS TM 10155A-13/1
4-25. CONTROL BOX FUSE, DIODE, AND TERMINAL BLOCK MAINTENANCE
This task covers removal, inspection, and installation.
Tool Kit, General Mechanics Automotive
Generator set shut down (Para. 2-9)
(Item 2, App. B, Sect. III)
Battery cables disconnected
Cable disconnected for SLAVE RECEPTACLE
To remove fuse (15, Figure 4-16), turn quarter-turn fasteners to unlock and open control panel. Unscrew
cap (16) from fuse holder (17) and remove fuse.
Tag and disconnect electrical wiring from terminal blocks TB5 (1) and TB3 (2).
Remove terminal blocks TB5 (1) and TB3 (2) from inside wall of control box by removing screw and
captive washer assemblies (5).
Remove five diodes (6).
To remove terminal blocks TB4 (3) and TB6 (4), unlock main access cover latches and open cover.
Remove clear plastic covers (7, 8) from terminal blocks TB4 (3) and TB6 (4) by removing screws (9) and
Tag and disconnect electrical wiring from terminal blocks TB4 (3), and TB6 (4).
Remove terminal blocks TB4 (3) and TB6 (4) from rear of control box by removing standoffs (11) and
lockwashers (12). Remove identification plates (13, 14).
Remove fuse holder (17) from control box by removing nut (18).
Inspect terminal blocks and diodes for corrosion, evidence of electrical short, and obvious damage. Ensure
terminal connectors are intact and secure.
Inspect four diodes on terminal block TB5 for obvious damage. Check security of attachment.
Inspect electrical wiring for cuts, crimps, bare wire, or other damage. Ensure connectors are secure.
Remove and replace any component that is damaged to the extent that it will effect the safe operation of
the generator set.