Deck Guard

TM 5-5430-209-12

WARNING

b. Assembly.

Do not install guard wire supports over

(1) Assemble right ladder rail (1, fig. 7-4), left

stave chime lap seams or deck lap

ladder rail (2), and ladder steps (3) with bolts (4)

seams.

following the procedures given in paragraph 6-16b (1)

(1) Locate supports (14, fig. 7-4) around the

and (2).

top chime near center of each deck plate except at the

(2) Place assembled sections end-to-end on

ladder.

blocking so that the inside angle of the ladder steps all

(2) Remove two adjacent nuts from the

face in the same direction. The end of ladder rails (1)

chime bolts where each support is to be installed.

and (2) facing the inside angle of steps (3) is the bottom.

(3) Install supports over the bolt so that the

(3) Connect assembled ladder rails together

undrilled side of the support is toward the outside

with splice gusset plates so that the short-sheared edge

perimeter of the deck. Secure each support with two

is toward the top of the ladder and away from the face of

nuts previously removed.

the ladder. From the ladder rail side, install a bolt (4)

(4) Thread guard wires (15) through holes in

through the first, second, and fourth holes of the rail and

supports (14). Attach ends of wires to handrails (13)

gusset plate, counting from the bottom hole. Finger

leaving an opening between the two handrails.

tighten a nut on each bolt.

(4) Assemble two cross tie strips (6) in the

c. Scaffold. Refer to paragraph 6-15f and remove

form of an "X" with a bolt (4) through the center holes.

the scaffold components.

Install a nut finger tight on the bolt. Assemble the two

7-16. Emergency Vent

remaining cross tie strips in the same manner.

(5) At bottom of ladder on right ladder rail (1),

a. General.

The emergency vent for the

install brace (7) on the side face of the rail using the

3000barrel tank is identical to, and interchangeable with,

hole that is nearest the end of the brace. Install bolt (4)

the vent for the 1000-barrel tank as described in

through the hole from the rail side. Finger tighten a nut

paragraph 6-17a.

on the bolt. Install brace (8) on left ladder rail (2) in the

same manner.

b. Installation. Refer to paragraph 6-17b and

(6) Install two crosstie strips (6) between

install the emergency vent.

braces (7 and 8), using holes nearest the ladder rails.

7-17. Manhole Air Intake

Secure strips to braces with bolts (4) and nuts. Tighten

nut on bolt in middle of the strips.

(7) At splice gusset plate (5) nearest bottom

a. General.

The manhole air intake for the

of ladder on right side, install brace (9) using the three

3000barrel tank is identical to, and interchangeable with,

vacant holes in the plate. Install bolts from the plate

the intake for the 1000-barrel tank as described in

side. Install nuts on each bolt. Tighten all nuts and

paragraph 6-18a.

bolts at the gusset plate. Install brace (10) on left side in

the same manner.

b. Installation. Refer to paragraph 6-186 and

(8) Install two crosstie strips (6) between

install the manhole air intake.

braces (9 and 10) as in step (6) above.

7-18.

Water Draw-off Valve

(9) At top splice gusset plates (5), install

brace (11) on right side, and brace (12) on left side, as

in step (7) above.

a. General. The water drawoff valve for the

(10) Install handrail (13) on outside face of

3000barrel tank is identical to, and interchangeable with,

each ladder rail (1 and 2) at top of ladder. Secure each

the valve for the 1000-barrel tank as described in

handrail with two bolts (4) and nuts.

paragraph 6-19a.

c. Installation. Refer to paragraph 6-16c and

install the assembled ladder.

b Installation. Refer to paragraph 6-19b and

install the water drawoff valve.

7-15. Deck Guard

7-19.

Tank Outlets

a. General. The deck guard consists of 19 guard

wire supports (14) and two guard wires (15). The

supports are welded steel angles which are attached to

a. General. The tank outlets for the 3000-barrel

bolts in the deck chime. The guard wires are number 9

tank are identical to, and interchangeable with, the

steel wire. They are threaded through holes in the

outlets for the 1000-barrel tank as described in

supports to form guard rails around the outer perimeter

paragraph 6-20a.

of the deck.

b. Installation. Refer to paragraph 6-20b and

b. Installation.

install the tank outlets.

7-7