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+24 VDC Power System User Manual (Section 6013)
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Rev. G
127
Installing Kit Part No. 514912
This kit consists of the following:
Qty. Part No.
Description
1
514911
Busbar
1
167537400 Sleeving, Size 2, 9” long
4
237650200 Plastic cable tie, 3-7/8” x 1/16”
Perform the following procedure to replace the LVD contactor with the bypass busbar. Refer to
as the
procedure is performed.
Procedure
DANGER!
Observe the admonishments located at the beginning of this section.
DANGER!
All sources of AC and DC power must be completely disconnected from this power system
before performing this procedure. Use a meter to verify no DC voltage is present on the system busbars
and contactor before proceeding.
1.
Open the Distribution Cabinet's front door by turning and holding the captive fastener in the
counterclockwise position.
2.
On the side of the contactor body, disconnect the lug that terminates two 22 AWG violet wires. Cut and
remove the plastic cable tie that secures these two violet wires to a red/white wire.
3.
Use kit-furnished sleeving to insulate the lug that was disconnected in the last step. Secure the sleeving
to the wires by applying kit-furnished plastic cable ties. Tie back the wires using kit-furnished plastic
cable ties.
4.
Remove the seven bolts and washers indicated in
. Remove the contactor. Retain all hardware
for reuse.
NOTE!
In the next step, apply electrical anti-oxidizing compound to busbar mating surfaces.
5.
Place the kit-furnished busbar as shown in
. Secure by installing and tightening the seven bolts
and 14 washers that were removed in a previous step. Recommended torque is 84 inch pounds for the
standard (split) lock washers, and 60 inch pounds for the Belleville washers.
6.
Close the Distribution Cabinet's front door. The door can be shut without turning the captive fastener.