Hach sc200 - Figure 89: Operator Mechanism in the Tripped Position; Figure 90: Inspecting Fuses; Figure 91: Starter Contacts

80459-641-01E Model 6 Motor Control Centers
10/2012 Section 6—Maintaining the MCC
© 1999–2012 Schneider Electric All Rights Reserved
63
ENGLISH
Circuit Breaker or Disconnect Switch—Verify proper operation of the
circuit breaker or disconnect switch. Inspect switch blades; if evidence of
arcing or excessive heat is present, replace the switch assembly. Exercise
the push-to-trip feature on the circuit breakers.
Operator Mechanism—Verify proper operation of the operator mechanism
(see Figure 89). Test for proper ON, TRIP, OFF, and RESET positions (F-,
K-, and L-frame circuit breakers) or ON, TRIP, and OFF positions (
H-, J-,
M-, or P-frame circuit breakers). Verify proper door interlock operation.
NOTE: Fusible switch operator mechanisms do not have TRIP or RESET
positions.
Fuses—Inspect all fuses and fuse clips (see Figure 90). Replace any parts
showing signs of overheating or arcing.
Starter Contacts—Check the starter contacts (see Figure 91). Replace any
that are badly worn or pitted. (See the contactor instruction bulletin included
with the original shipment.)
Figure 89: Operator Mechanism in the
Tripped Position
Figure 90: Inspecting Fuses
Figure 91: Starter Contacts