Section III. ASSEMBLY AND INSTALLATION OF TANK CENTER SUPPORT ASSEMBLY

TM 5-5430-209-12

number of staves have been installed to

(5) Attach deck hook (3) to tackle block (4).

give rigidity to the ring.

(6) Lower tackle block and attach deck hook

(8) Remove gin pole and install nuts and

to the upper chime of a stave (5) as shown in figure 7-2.

bolts in the vacant holes of bottom chime. Tighten the

nuts.

(7) Install and tighten all staves of the ring, as

described in paragraph 6-9b through f. Relocate the gin

(9) Install scaffold around top chime of

pole around the tank as necessary for hoisting the

secondring staves (para 6-10).

staves. After several staves are installed, gin pole

should be slanted toward the staves to be installed.

(10) Dress top chime of staves as described in

paragraph 6-11.

NOTE

c. Third-Ring Staves.

Third ring staves are

Attach guy lines from outside of tank to

installed so that they straddle vertical lap seams of the

top chime of staves in order to stabilize

second-ring staves. Installation procedures are identical

the ring until it becomes self-supporting.

to those for second-ring staves (para b above) .

Remove guy lines when a sufficient

Section III. ASSEMBLY AND INSTALLATION OF TANK CENTER SUPPORT ASSEMBLY

7-10. Installation

Tank

Center

Support

7-9.

Assembly of Umbrella-Type Deck Support

Assembly

a. General. The unmbrella-type deck support is

a. General.

identical to, and interchangeable with, the support used

on the 1000-barrel capacity tank as described in

(1) The tank center support is an assembly

paragraph 6-12.

consisting of the center support base (2, fig. 7-3),

bottom center support (1), middle center support (7), top

b. Assembly.

Refer to paragraph 6-12 and

center support (9), step plate (11), and the assembled

assemble the deck support.

umbrella-type deck support (10).

7-3