CHAPTER 4 ERECTION INSTRUCTIONS FOR THE 250-BARREL CAPACITY TANK

TM 5-5430-209-12

CHAPTER 4

ERECTION INSTRUCTIONS FOR

THE 250-BARREL CAPACITY TANK

Section I. ASSEMBLY AND INSTALLATION OF TANK BOTTOM

4-1. Center Bottom Plate

a circular, flat, steel plate. Tank bottom plates are

a. General. The center bottom plate (1, fig. 41) is

attached to the outer circumference bolting circle.

CENTER BOTTOM PLATE

5. TWO-BOLT HOLE CHANNEL

BOLT RETAINING BOARDS

6. PLAIN BOTTOM PLATE

CENTER PLATE GASKET

7. OUTLET BOTTOM PLATE

BOLT

Figure 4-1. Installation of gasket, bolts, and channels on center bottom plate.

b. Installation.

(5) Insert two 1/2-by 1-1/2-inch bolts (4) in the

two-bolthole channel (5).

(1) Drive center stake below surface of

(6) Insert channel assembly through center

foundation and backfill the hole.

bottom plate and gasket.

(2) Place bolt retaining boards (2) around

(7) Lay center bottom plate on bolt retaining

outer circumference of center bottom plate (1).

boards (2). Boards will prevent movement of bolts when

(3) Position center bottom plate over center

bottom plates are installed.

stake.

(4) Place gasket (3) around bolt circle of

4-2. Assembly of Bottom Plates

center bottom plate.

CAUTION

a. General.

The tank bottom consists of 10

Do not use a sharp-edged tool or pipe to force

tapered, flat, steel plates. Nine plates (6, fig. 4-1) are

gasket over bolts. Avoid damage to gasket by using

plain, and one plate (7) is special. Nine plates are

a well-rounded, smooth-mouth tool.

interchangeable. They are bolted to the center bottom

plate (1). When the bottom is completely installed, the

plate pattern resembles a wheel.

4-1