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 TM 55-1905-223-24-18-1
(2) Verify it is correct breaker.
(3) Ensure circuit breakers are OPEN.
(4) Apply a thin coat of lubricant to breaker's primary disconnects.
(5) Ensure racking cams on breaker are positioned for engagement with pins in
compartment.
Insert racking handle (8, FIGURE 2-213) into racking screw hole (2, FIGURE 2-
j
214) and turn counterclockwise until jack screw comes to solid stop. Remove
racking handle (8).
Attach suitable lifting device and spreader rig and raise circuit breaker (1)
k.
above elevation of tracks.
Slowly lover and guide circuit breaker (1) until circuit breaker (1) mounting
l.
pins drop into track slots of substructure (3).
Remove lifting device and spreader rig.
m.
Manually push circuit breaker (1) in until it reaches track stops (DISCONNECT
n.
position).
o.
Close door panel (9, FIGURE 2-213).
p.
Turn door panel screws (4) clockwise until tight.
q.
Insert racking handle (8) into racking screw hole (6) and turn handle (8)
clockwise until jackscrew comes to solid stop (CONNECTED position). Remove
racking handle (8).
Store racking handle (8, FIGURE 2-213) behind door panel (3).
r.
Install door panel (3).
s.
Turn door panel screws (1) clockwise until tight.
t.
Turn ON power to ship service switchboard. Remove tag.
u.
Turn ON circuit breaker.
v.
Check operation of indicator;, meters, switches, variable resistor and
w.
rheostat and circuit breaker.
Refer to paragraph 2-291.
2-872
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