S&C Instruction Sheet 712-501
11
Switch Operation
Before Operating
Step 1
Before operating the Mark VI Circuit-Switcher:
a . Check the internal decoupling mechanism
inside the Mark VI CS-1A Switch Operator
to verify that the selector handle is in the
“COUPLED” position . See Figure 9 .
b . Check that the manual operating handle is
in the storage position, and tagged or pad-
locked . See Figure 10 .
c . Check that the two-pole pull-out fuseholder
for the motor (and space heater, if fur-
nished) is inserted . See Figure 11 .
d . Check that the switch operator enclosure
door is tagged and padlocked in accor dance
with standard system operating
pro cedures .
Figure 9. Position indexing drums.
Figure 10. Manual operating handle tagged and/or padlocked.
Figure 11. Check that the motor circuit fuseholder is in place.
Internal decoupling
mech anism
(in coupled position)
Motor circuit fuseholder
Padlock or tag
Summary of Contents for Mark VI
Page 28: ...Printed in U S A ...
