KRB-5368c
-42-
6-2-7. Auxiliary switches
The following describes how to replace auxiliary switches.
1)
Make preparations for parts replacement. Refer to section 6-2-1.
2) If the ACB is not equipped with the undervoltage trip device, turn the cover mounting screws five or six turns to loosen as shown
in Fig. 23. If the ACB is equipped with side covers, first remove the side covers and then loosen the front cover mounting screws.
(The cover mounting screws are of captive type and cannot be removed from the side and front covers.)
3) Pulling the charging handle down, remove the front cover.
4)
Remove the Auxiliary switch mounting screw as shown in Fig. 41.
5)
Remove the terminal block fixing screws as shown in Fig. 24, and move the terminal block.
6) Remove the Retaining rings C TYPE External from the Link lever pin of Auxiliary switches by using the special tools as shown
in Fig. 41, and remove the auxiliary switches.
(Do not reuse the Retaining rings C TYPE External. Be sure to use a new one.)
Fig. 41 Auxiliary switches and related parts
7) Reinstall each part or component in reverse order of removal after inspection, and make sure the link lever pin of auxiliary
switches is position specified in Fig. 42.
Auxiliary contacts can be checked visually through the inspection holes shown in Fig. 42.
Fig. 42 Checking auxiliary contacts
Auxiliary switches
Auxiliary switch mounting
screw,
Pan head M4 x 10 (6)
with spring and flat washers
Tightening torque: 1.3 - 1.7 N·m
Auxiliary contact
Shaft lever
Retaining rings C TYPE External for Link
lever pin of Auxiliary switches : STW-8.
with small flat washers M8
Inspection holes
Link lever pin of auxiliary switches
Summary of Contents for TemPower2 AR-E Series
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