Arc Chutes (2000 KW). - TM-43-01560078

TM 43-0156

Step

Function

Mech

Insp

(10) Place PPP-C-843 cushioning over relays and switches

and secure with MIL-T-22085 tape. PPP-T-60 tape

cont

may be used as a substitute.

(11) Fabricate frame in accordance with figure B-2-2.

Refer to table B-2-2 for list of materials. Drill

holes to enable securing frame to control unit with

FF-B-584 bolts and FF-W-92 washers.

(12) Cover frame where it comes in contact with the control

unit with MIL-B-121 barrier.

(13) Secure frame to control unit with 3/9 x 5-1/2 NC

FF-B-584 bolts and FF-W-92 flat washers.

(14) Preserve and pack batteries as follows:

(a)

Fabricate a PPP-B-601 box (57-1/2 x 22-1/2 x 12)

for the batteries in accordance with appendix

D-1. Refer to table B-2-3 for list of materials.

Line box with MIL-B-121 barrier.

(b)

Coat battery posts with MIL-S-8660 silicone.

Place each battery into a PPP-B-636 fiberboard box

(10-3/4 x 10-3/4 x 9).

(c)

Place 10 dry-charged batteries into PPP-B-601 box.

(d)

Secure box to battery rack with QQ-S-781 steel

strapping, edge protectors, and seals.

Arc Chutes (2000 KW).

(1) Fabricate PPP-B-601 boxes (37-3/4 x 21 x 32) for the

arc chutes in accordance with appendix D-1. Refer

to table B-2-4 for list of materials.

(2) Wrap the arc chutes with PPP-C-843 cushioning.

(3) Place three arc chutes into the box.

(4) Isolate the arc chutes from the sides of the box and

each other by using MM-L-751 (21 x 2 x 4) lumber and

seal the box.

Packing for the Control Unit.

(1) Fabricate a MIL-C-104 crate (252-1/2 x 81 x 93-1/2)

in accordance with appendix D-3. Refer to table

B-2-5 for a list of materials.

Change 1

B-2-15