4-22. REMOVE/INSTALL EXPLOSIVE PROOF DISTRIBUTION BOX
A13 COMPONENTS - continued.
Remove two screws, nuts, flat washers, and lockwashers attaching relay to panel.
Remove defective control relay.
Install Control Relay. See figure 4-11.
Place new relay on mounting panel and attach with two screws, flat washers, lockwashers and nuts.
Connect relay electrical leads and tighten terminal screws.
Install Terminal Board. See figure 4-11.
Replace new terminal board on mounting plate and attach with four screws, lockwashers, flat washers,
standoffs and nuts.
Connect all electrical leads and tighten terminal screws.
Assemble Explosive Proof Distribution Box A13. See figure 4-11.
Place mounting panel in junction box and attach with four mounting screws, flat washers, lockwashers and
Align the junction box cover plate onto the junction box and attach with twenty cover plate bolts and flat
Connect power input cable (paragraph 2-7), and close circuit breakers A1CB1, A1CB2.
Run operational test to verify new components.