TM 55-7440-240-14
Table 6-1. Bill of Materials
for Blocking and Tiedown of
Truck, M813A1, with Shelter, S491, in
General Cargo Vessel
Approximate
quantity
Description
Item
Douglas-fir, or comparable, straight-grain, free from material defects; Fed Spec MM -L-
Lumber
751H:
8 linear ft
2- x 4-inch
44 linear ft
2- x 12-inch
62 linear ft
4- x 6-inch
Common, steel, flathead, bright or cement-coated; Fed Spec FF-N-105B:
Nails
32
12d
as required
30d
16
60d
6 x 19 IWRC, improved plow steel, preformed, regular-lay; Fed Spec RRW-410C:
5/8-inch
80 ft
Wire rope
Wire rope, U-bolt clips, saddled single grip, steel, Crosby heavy-duty or equal; Fed Spec
Clamps
16
FF-C-450D: 5/8-inch
Table 6-2. Application of Materials
for Blocking and Tiedown of
Truck, M813A1, with Shelter, S491, in General-Cargo
Vessel
Application
No. required
Item
A
4
Lumber, 2- x 12- x 96-inch. Pre-position on vessel deck so that two pieces are under the left
rear wheels and two pieces are under the right rear wheels parallel to the long axis of the
truck.
Lumber, 2- x 12- x 36-inch. Pre-position on vessel deck so that two pieces are under each
B
4
front wheel parallel to the long axis of the truck.
C
2
Side blocks. Each to consist of 4- x 6- x 108-inch lumber. Locate one piece centered against
outside of left and right rear wheels.
D
Side blocks. Each to consist of 4- x 6- x 48-inch lumber. Locate one piece centered against
2
outside of each front wheel.
E
4
End blocks. Each to consist of 4- x 6- x 108-inch lumber. Locate one piece forward of front and
intermediate wheels and behind front and rear wheels. Toenail each end to side block with
two 60d nails.
F
8
Backup cleats. Each to consist of one piece of 2- x 4- x 12-inch lumber. Locate one on top of
items C and D against the joint of each item E. Nail to items C and D with four 12d nails
each.
G*
Bracing. 4- x 6-inch x random length, cut-to-fit. Place ends against side blocking and blocking
as required
of other cargo, side of ship, or other ship's structure. Nail with 30d nails where appropriate.
H*
as required
Blocking. 4- x 6-inch x random length, cut-to-fit. Place around truck and against other block-
ing, side of vessel, or other ship's structure as appropriate, to assist in holding bracing in
place.
4
J
Wire rope, approximately 20 feet each. Form a complete loop through truck tiedown provision
and appropriate deck padeye or D-ring. Pull wire rope taut and secure with clamps (item K).
K
16
Clamps. Use four to secure each item J. Details for placement of clamps may be found in figure
* Material for these items not included in table 61.