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 TM 55-2300-258-14
sheltered waters, blocking and chocking will be
required. When moving extended distances or
When transporting the HET and C-HET systems
through rough waters, tiedowns must also be used.
short distances by barge or similar lighterage on
Table 6-1. Bill Materials for Blocking and Tiedown of Truck-Tractor M746 and M911 in General-Cargo Vessel (Figs 6-3 and 6-6)
Approximate
Quanity
Item
Description
Lumbar . . . . . . . . . . . . . . . . . . . .
Douglas-fir, or comparable, straight-grain, free from material
defects: Fed Spec MM-L-751H:2- X 12-in. . . . . . . . . . . . . .
80 linear ft
4- X6-in. ... . . . . . . . . . . . . .
8 linear ft
96 linear ft
6- X8-in . . . . . . . . . . . . . .
Nails... . . . . . . . . . . . . . . . . . . .
Common, steel; flathead, bright or cement-coated; Fed spec
FF-N-105B:40d . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Wireropa . . . . . . . . . . . . . . . . . .
6 X 19, I WRC; improved plow steel; preformed, regular-lay:
Fed Spec RR-W-410C:5/8-in . . . . . . . . . . . . . . . . . . . . . . . . . . . 160 ft
Wire rope, U-bolt clips, saddled, single-grip, steel, Crosby
clamps . . . . . . . . . . . . . . . . . . . .
heavy-duty, or equal; Fed Spec FF-C-450D: 5/8 in.. . . . . . . . . . 32
--
--
M746 and M911 in General-Cargo Vessel (Figs 6-3 and 6-6)
Item
No. required
Application
A
8
Lumber, 2- X 12- X 120-in. Pre-position on vessel deck so
that two pieces are under each pair of wheels and parallel to the
long axis of the vehicle.
B
4
Side blocks. Each to consist of one piece of 6- X 8- X 144-in. -
lumber. Locate one piece centered against outside of each pair
of wheels.
c
4
End blocks. Each to consist of one piece of 6- X 8- X 144-in.
lumber. Locate on top of item B and against wheels as shown in
each item C.
D
Backup cleats. Each to consist of one piece of 4- X 6- X 12-in.
8
lumber. Locate on top of item B against the joint of each item
C. Nail to item B with four 40d nails each.
E
as required
Bracing. Each consists of 6- X 8-inch X length cut-to-suit.
Brace as required against adjacent, vehicle, cargo, or side of
vessel bulkhead, as appropriate. Materials for this requirement
not included in table 6-1.
8
F
Wire rope, approximately 20 ft. Form a complete loop
through each tiedown provision shackle and appropriate vessel
deck padeye. Pull wire rope taut and secure with clamps (item
G).
Clamps. Use four to secure each item F.
G
32
M747, in General-Cargo Vessel (Fig 6-4)
Approximate
Description
quantity
Item
--
Lumbar . . . . . . . . . . . . . . . . . . . .
Douglas-fir, or comparable, staight-gram, free from material
defects; Fed Spec MM-L-751H: 2- X 12-in. . . . . . . . . . . . . . . .
75 linear ft
4- X 6-in . . . . . . . . . . . . . . . .
18 linear ft
6- X 8-in . . . . . . . . . . . . . . . .
60 linear ft
Naila . . . . . . . . . . . . . . . . . . . . . .
Common, steel; flathead, bright or cement-coated; Fed Spec
FF-N-105B:40d . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
48
Wire Rope. . . . . . . . . . . . . . . . . .
6 X 19, IWRC; improved plow steel preformed, regular-lay;
80 ft
table X, Fed Spec RR-W-410C: 5/8-in.. . . . . . . . . . . . . . . . . . . .
Camps . . . . . . . . . . . . . . . . . . . .
Wire rope, U-bolt clips, saddled, single-grip, steel, Crosby
heavy-duty, or equal; Fed Spec FF-C-450D: 5/8-in. . . . . . . . . .
16
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