ARMY TM 9-6115-639-13
AIR FORCE TO 35C2-3-386-51
MARINE CORPS TM 10155A-13/1
4-24. CONTROL BOX RELAY 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
Turn quarter-turn fasteners to unlock and open
Remove holdown springs (4, Figure 4-15) to
release relays (3) from relay sockets (1).
Tag and disconnect electrical wiring from fault
lockout relay K12, auxiliary fuel transfer relay
K14, and starter cutout relay K15.
Note orientation of diode on relay socket
(1) before removing socket. Socket must
be oriented the same way when installed in
order to function properly.
Remove relay sockets (1) from rear wall of
control box by removing screws (2).
Figure 4-15. Control Box Relays
Inspect relays for corrosion, evidence of electrical
short, and obvious damage. Ensure terminal lugs
are intact and secure.
Inspect electrical wiring for cuts, crimps, bare
wire, or other damage. Ensure connectors are
Remove and replace any component that is
damaged to the extent that it will effect the safe
operation of the generator set.