Powell PowlVac ARG 4 Series, Инструкционный бюллетень

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39 Recommended Renewal Parts and Replacement Procedures
01.4IB.50023A
c. Remove three ⁵/₁₆” bolts holding the
stationary contact to the contact
support bar. Bolt the new stationary
contacts in place using the existing
hardware. Torque the ⁵/₁₆” bolts to
15-20 ft-lbs. No adjustment of the
contacts is required.
d. Reinstall the six insulating tubes
around the test jacks. Make sure that
each test jack is seated in the hole in
the supporting barrier, and that the
grooved end of the insulating tube is
toward the front of the ground and test
device.
e. Reinstall the upper front cover
assembly. Make sure that the grooved
end of each of the six test port
insulating tubes is seated in the hole
provided in the front insulating barrier
before replacing the mounting bolts.
3) Closing Coil Assembly
The closing coil assembly is located in the
lower center of the ground and test device,
just behind the lower front cover
(Figure 1, n) .
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 closing
coil assembly:
a. Remove the upper portion of the
ground and test device front cover.
b. Unplug the closing coil from the wiring
harness.
c. Remove the two bolts holding the
closing coil assembly to the lower front
cover and withdraw the closing coil
from the front of the ground and test
device.
d. Insert new closing coil assembly
into the device from the front, bolt it
into place and plug it into the wiring
harness. No adjustment is required.
e. Close the grounding switch electrically
several times to ensure that the coil is
working properly.
f. Replace the upper front cover.
4) Charging Motor Assembly
The charging motor assembly is located in
the lower left of the ground and test device,
just behind the lower front cover
(Figure 4, 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 charging
motor assembly:
a. Remove the upper portion of the
ground and test device front cover.
b. Unplug the charging motor from the
wiring harness.