Section IV. ASSEMBLY AND INSTALLATION OF TANK DECK

TM 5-5430-209-12

(2) Gin pole components, provided in the

e. Installation of Top Center Support.

storage tank erection outfit and shown on figure 7-3, are

(1) Lower tackle block (6, fig. 7-3) and attach

required to install middle support (7), top support (9),

deck hooks (5) in boltholes at top of top support (9).

umbrella-type support (10), and the rafter and deck

(2) Lift top support (9) above middle support

sections.

(7). Aline flange boltholes and lower top support into

position.

b. Installation of Bottom Center Support. Lift

(3) Install bolts (8) through flanges from the

bottom center support (1) and insert bottom end in

top. Install a nut on each bolt and tighten the nuts.

center support base (2).

(4) Remove gin pole from middle support (7)

and install it on top support (9).

c. Installation of Gin Pole. The gin pole is installed

on the bottom support so that the middle support can be

f. Installation of Umbrella-Type Support.

installed. It is then moved to the middle support for

(1) Lash a suitable timber to underside of

installation of the top support. Finally, it is installed on

support ring on the umbrella-type deck support (10, fig.

the top support for installation of the umbrella-type deck

7-3).

support and deck sections.

(2) Attach deck hook (5) to the timber.

(3) Raise deck support (10) to a position

(1) Attach adapter (3, fig. 7-3) to the support

above the top of the center support.

so that top clamp of adapter will be about 6 inches

(4) Have one or two men guide the deck

below the column bolting flange.

support as it is lowered into position on the center

(2) Assemble top and middle sections of the

support.

gin pole. Attach a block and tackle to the headblock

(5) Install step plate (11) and center support

eye. Raise gin pole (4) and install it in adapter (3).

bolt (12) before removing the timber and deck hook.

(3) Attach two deck hooks (5) to tackle block

(6).

g. Adjustment of Tank Center Support.

(1) Measure distance from top of center

d. Installation of Middle Center Support.

support base plate to the top of the support angles on

(1) Lower tackle block (6, fig. 7-3) and attach

top center support (9, fig. 7-3). The correct distance

deck hook (5) to the bolting flange of middle support (7).

between these points is 22 feet, 1-7/16 inches.

(2) Lift middle support (7) above bottom

(2) Place a jack on a heavy timber under

support (1). Aline flange boltholes and lower middle

each jack lug at Lne bottom of bottom support (1).

support into position.

Raise the assembled support with jack until correct

(3) Install bolts (8) through flanges from the

measurement (step (1) above) is obtained.

top. Install a nut on each bolt and tighten the nuts.

(3) Aline boiTholes in bottoiii support (11 and

(4) Remove gin pole from bottom support (1)

base (2). Install two bolts (12) through alined holes.

and install it on middle support (7).

Secure each bolt with a nut.

(4) Remove the jacks and blocking.

Section IV. ASSEMBLY AND INSTALLATION OF TANK DECK

7-11.

General

pressure vacuum valve. The level indicator plate is

equipped with a half-coupling welded into the plate and

a 1-inch pipe plug attached to the coupling.

a. 'Ihe assembled deck of the 3000-barrel tank is

identical to, and interchangeable with, the deck of the

7-12. Assembly of Deck Plates and Rafters Refer to

1000-barrel tank as described in paragraph 614a. The

differences between the deck components of the two

paragaph 6-14 and assemble the rafters and deck

tanks are the part numbers and the number of hatch

plates.

7-13. Installation of Tank Deck Refer to paragraph 6-

plates. All plates are interchangeable.

15 and install and tighten the tank deck.

b. Fifteen of the plates are identical. Four of the

plates have an 8-inch hatch hole for the installation of a

Section V. ASSEMBLY AND INSTALLATION OF TANK ACCESSORIES

7-14.

-14.

Access Ladder

ladder braces, and handrails (13) are identical to, and

interchangeable with, corresponding parts of the 1000-

barrel

capacity

tank

(fig.

6-19).

Ladder

a. General. The access ladder (fig. 7-4) consists

subassemblies are bolted togethey.with splice gusset

of three bolted ladder subassemblies and two welded

plates (5). Assembled ladder is attached to the stave

handrail assemblies. The right (1) and left (2) ladder

chimes.

rails, ladder steps (3), top right (11) and top left (12)

7-5