CAUTION:
Utilize care in preventing escutcheon from falling forward when removing
screws in Step 3.
3. Remove the four (4) screws securing escutcheon to relay panel and save for reuse. Lower
escutcheon slowly until secure in open position.
4. Remove the two (2) wires attached to fuse holder marking wire locations to ensure proper
connection to new fuse holder.
5. Remove the two (2) screws securing fuse holder to relay panel. Save screws and nuts for
reuse.
6. Replace the two (2) screws and nuts securing new fuse holder to relay panel.
7. Observing wire location markings, connect fuse wire to proper fuse terminals.
8. Replace the four (4) screws securing escutcheon to relay panel.
9. Replace the two (2) screws securing eyebrow to relay panel and place unit back into service.
REPLACE POWER BOARD
(ITEM N0. 47)
Tools:
Phillips Screwdriver #2; Slotted Screwdriver; Nut Driver - 5/16”.
Procedure:
1.
DANGER:
Turn off electrical power and disconnect electrical power supply. If unit is
hardwired,
CIRCUIT BREAKER MUST BE OFF.
2. Remove the two (2) screws securing eyebrow to relay panel and save for reuse.
CAUTION:
Utilize care in preventing escutcheon from falling forward when removing screws
3.
4.
5.
6.
7.
8.
9.
Remove the four (4) screws securing escutcheon to relay panel and save for reuse. Lower
escutcheon slowly until secure in open position.
Unplug the 3-pin connector from power board.
NOTE:
Mark wire locations to ensure proper connection to new power board and
contactor prior to Steps 5 and 6.
Remove the three (3) wires attached to bottom of power board.
Follow the four (4) wires from right hand side of power board and remove from termination
point. Wires labeled El, E2 and E3 connect to contactor #l and E4 to relay panel.
Remove the four (4) nuts securing power board to relay panel.
Replace the four (4) nuts securing new power board to relay panel.
Observing wire location markings, replace the three (3) wires removed in Step 5 to power
board.
instep 3.
WINSTON
28
LIT.6710/REV.0/9-91
