Figure 2-15. Lifting and jacking methods for low voltage section.

side of lifting lug. This should form a short lifting sling

2-20. Low Voltage Section Installation

whose loops are around the six inch long rod, one each

a. Lifting Low Voltage Section, (fig. 2-15).

side of lifting lug. (fig. 2-15.)

(1) Clear trailer deck of all unnecessary

(6) Repeat steps (4) and (5) on all four corners.

equipment, and have area for low voltage section

(7) Place a bar (or timber) across each end of

clear.

low voltage cabinet. Insert ends in sling loops of front and

(2) Attach slings, and lifting devices, and lift

rear corners.

cabinet per paragraph 2-19c.

(8) Place one lifting jack under bar or timber at

(3) With hoist move cabinet into position for

each lifting lug.

lowering onto trailer. The transition side goes toward the

CAUTION

transformer.

Inspect and make sure all panels and doors

CAUTION

are closed and secured. If circuit breakers

Care must be taken not to hit the transformer bus

are in they should be in the full "IN" position

connections when lowering low voltage section on

and open.

trailer.

(4) Lower cabinet slowly and guide it to its

position as close as lifting equipment will allow.

(9) Using lifting jacks raise cabinet a sufficient

(5) When cabinet is on trailer deck, remove

height to clear rollers to be used. Raise cabinet as evenly

lifting equipment from cabinet and area.

as possible so not to twist and distort it, causing damage

b. Connecting Low Voltage Section to Transformer.

to equipment.

(10) Place construction rollers under the three

(1) If cabinet must be moved more than a few

channels of the cabinet base.

inches, the method described in paragraph 2-19d may be

used.

(2) Install gasket on flange of the transition of

CAUTION

low voltage cabinet as follows:

(a) Clean flange surface.

The rollers must be long enough to fit the

(b) Apply a thin coat of adhesive to both

entire width of the three bottom channels

the flange and one side of gasket.

and placed so that the cabinet is not

(c)

Allow adhesive to dry until it is no

distorted. Otherwise serious damage may

longer tacky.

result to the equipment.

(d) Install gasket just outside the mounting

(11 ) Lower cabinet onto construction rollers.

bolt holes of the flange. Allow the piece across the top to

(12) Cabinet may be shifted or moved using the

overlap the two side pieces. Press gasket against flange

rollers.

with enough pressure to make good contact.

(3) Move cabinet into position. The bolt holes in

base must be aligned with holes in trailer deck. The bolt

holes in flange must line up with holes in flange of

transformer.

NOTE

If trouble is experienced with aligning flange

holes, it may be possible to line them up by

loosening trans- former mounting bolts. Then

when flange holes line up insert bolts and hand

tighten nuts. Then line low voltage section base

holes with trailer holes and insert low voltage

section mounting bolts and nuts.

(4) With all bolts inserted in flange and

mounting base, tighten flange bolts and then mounting

bolts to the torque of the bolt size in table 1-1. If

transformer had been loosened be sure to retighten.

(5) On the right rear of cabinet loosen and

remove the 24 bolts and washers securing the access

cover on the transition area, between transformer and low

voltage cabinet.

Figure 2-15. Lifting and jacking methods for low voltage

section.

2-15