Chief Manufacturing CMA351 Installation, IMPORTANT ! These installation instructions assume

CMA351 Installation Instructions

Installation

IMPORTANT ! : These installation instructions assume

that a 1-1/2" NPT or NPSM following ANSI/ASME B1.20.1 (Schedule 40, 0.154" minimum thickness aluminum-ASTM B221) threaded extension column (not included) has been

properly installed and is in place.

1.Place one Nylon washer (C) over each stud on swivel adapter (A). (See Figure 1)

2.Align slots in stop plate (B) with two threaded studs on swivel adapter (A). (See Figure 1)

3.Secure stop plate (B) to swivel adapter (A) using two lock nuts (D). (See Figure 1)

NOTE: DO NOT fully tighten lock nuts at this time.

(B)	2
(C) x 2	1
(A)
(D) x 2
	3
(A)

Figure 1

4.Thread swivel adapter (A) onto existing 1-1/2" NPT or NPSM threaded extension column until tight, with a minimum of four threads engaged. (See Figure 2)

5.Secure swivel adapter (A) to extension column using 5/16- 18 x 3/8" set screw (F) and hex wrench. (See Figure 2)

5	(F)
4
	(A)

Figure 2

6.Rotate the bottom of swivel adapter (A) until middle set screw in swivel adapter (A) makes contact with tab in stop plate (B). (See Figure 3)

NOTE: This is considered the first stop position.
	Tab
	(Not Visible)
6	Lower Set
	Screw
	(B)
	(A)
	Tab
	Lower Set
	Screw
	TOP VIEW

Figure 3

6