Powell PowlVac ARG 4 Series, Инструкционный бюллетень

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41 Recommended Renewal Parts and Replacement Procedures
01.4IB.50023A
f. Reconnect all wires to the proper
terminals of the relay.
g. Close the grounding switch electrically
several times to ensure that the relay is
working properly.
h. Replace the upper front cover.
7) Latch Check Switch
The latch check switch is located on the
right side of the mechanism near the rear
(Figure 23, a) .
Ensure that the control circuits are
deenergized and the ground and test device
is deenergized, disconnected by means of
a visible break, and securely grounded. Do
NOT start to work on a closed ground and test
device or a ground and test device with the
main closing spring charged.
!
CAUTION
Perform these steps to replace the latch
check switch:
a. Remove the upper portion of the
ground and test device front cover.
b. Remove two screw holding switch to
mechanism. Do not lose nut plate into
which these screw are threaded.
c. Disconnect wires from switch.
d. Connect wires to new switch and fasten
switch in place with screws and nut
plate previously removed.
e. Adjust switch per instructions in
Ch 6 Maintenance, B. Mechanism Area,
3) Mechanism Adjustments,
b. Adjustment of Primary and Secondary
Trip Latches and Latch Check Switch in
this instruction bulletin.
f. Close the grounding switch electrically
several times to ensure that the
mechanism is working properly.
g. Replace the upper front cover.
8) Trip Paddle Interlock Switch
The trip paddle interlock switch is located
on the right side of the mechanism just
above the floor pan (Figure 23, d) . It is
accessible from the rear of the ground and
test device.
Ensure that the control circuits are
deenergized and the ground and test device
is deenergized, disconnected by means of
a visible break, and securely grounded. Do
NOT start to work on a closed ground and test
device or a ground and test device with the
main closing spring charged.
!
CAUTION
Perform these steps to replace the trip
paddle interlock switch:
a. Remove two screws holding switch to
mechanism. Do not lose nut plate into
which these screws are threaded.
b. Disconnect wires from switch.
c. Connect wires to new switch and fasten
switch in place with screws and nut
plate previously removed.
d. Adjust switch so that its contact is
closed when the trip paddle is in its
normal position (fully forward) and is
open when the trip paddle is depressed
far enough to get a padlock in front of
the trip paddle and into the hole in the
trip paddle interlock bracket. This may
require bending the arm of the switch.
e. Check to be sure the mechanism will
not charge when the trip paddle is
padlocked in the depressed position.
f. Replace the upper front cover.