TM 55-2200-001-12
Change 3
Sec. 4-Fig. 1-A (Rev.--10-1966)
TRANSFORMERS WEIGHING 21,000 LBS. OR LESS, 10 FT. HIGH OR LESS, BOXED,
CRATED OR SKIDDED-FLAT CARS
Item No. of Pcs.
Description
A
Brake wheel clearance. See Fig. 2, Sec. 1.
B
2 ea. unit.
Each to consist of two pieces of 2 in. x 6 in. hardwood, length full width of unit. Locate one at
each end of unit, crosswise of car, flush against outside base of box, crate or skid. Nail lower
piece to floor with ten 30-D nails and top piece to one below with ten 40-D nails.
C
2 ea. Item "B".
Each to consist of two pieces of 2 in. x 6 in. x 28 in. hardwood. Locate endwise of car flush
against items "B", equally spaced. Nail lower piece to floor with seven 30-D nails and top
piece to one below with seven 40-D nails.
D
2 ea. unit.
2 in. x 6 in. x 28 in. hardwood. Locate one at each side of each unit at the center outer base of
box, crate or skid, endwise of car. Nail to floor, flush against base of box, crate or skid, with
seven 30-D nails.
E
2 ea. unit.
2 in. x .050 in. high tension bands, passing over top of box, crate or transformer, spaced as
near ends of each unit as possible, secured to opposite stake pockets.
Transformers boxed, crated or skidded, and loaded under this figure, must be secured to crate, box or skid, in
such a manner that the transformer is an integral part of crate, box or skid. Crate or box must be constructed to contain
transformer and be of sufficient strength to withstand securement by use of high tension bands.
When units are loaded in tandem, i.e. end to end, and total weight does not exceed 21,000 lbs., items "B" and
"C" can be omitted between boxes or crates.
*When loaded in tandem and total weight exceeds 21,000 lbs., end blocking items "B" and "C" must be increased
to 6 in. x 8 in. hardwood. Item "B" to be secured with not less than two 3/4 in. bolts passing through car floor and each
backed up with four items "C", 6 in. x 8 in. x 24 in. hardwood, each secured with not less than two 3/4 in. bolts passing
through car floor. For items "C", substitute if desired, four laminated pieces each to consist of two pieces 2 in. x 6 in. x
24 in. hardwood, lower piece to be secured to car floor with seven 30-D nails and top piece to one below with seven 40-D
nails. Items "B" and "C" can be omitted between boxes, crates, or skids.
See General Rules 8, 4, 5, 7, 9, 14 and 15 for further details.
F-32.1
