Figure 7-3. Blocking and tiedown of the RTCC operational configuration on a wood-deck flatcar (sheet 4 of 5).

TM 55-3810-306-15

NOTES:

Latch and tape closed all hinged openings: engine access doors, tool

compartment, battery box doors, cab door, skylight and right side

sliding glass, and valve compartment lid.

Set parking brake and engage swing lock.

Each tiedown shown is a single length of .62-inch-diameter wire rope

looped through a railcar stake pocket and crane lug. Ends are joined

as shown in detail A. Tension all ropes to 3000 pounds and torque

rope clamp nuts to 95-foot-pounds.

Loading sequence: Lift the crane onto the flatcar. Center the load

laterally and position longitudinally. The blocking under the outrigger

boxes must support the gross vehicle weight. Tires should just touch

the railcar deck. Level the boom and build the boom support structure

to suit. Tension lines 19, 20, 21, 22, 23, 24, 25, and 26 first to seat the

carrier against the O/R box blocks. Then apply other restraints and

chocks.

Assemble wood joints in structures, planking, beams, and supports,

where bolting is not specified, using nails as follows: Nail through

plywood sheathing to O/R box blocks and braces to blocks using

sixteen 20d nails. Nail wheel chocks, bottom plates, and O/R box

block braces through into railcar deck using 20d nails.

Where toenailing is required to assemble 4 by 4, 4 by 6, 4 by 8, or 6

by 8 blocks or to nail beams or blocks or stakes to planking, bracing,

railcar deck, and so forth, use 30d nails and pre-drill to .156-inch

diameter.

Figure 7-3. Continued (sheet 4 of 5).

7-19