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Step 2: Mount the Marker Blade 
on the Marker Arm Extension

1. The Marker Arm Extension is the 27” long solid steel

shaft with a stop pin at one end and two mounting
holes at the other end. Place this arm on a flat surface
(table, etc.) for working ease.

2. Slide the extension arm into the “V-shape” of the blade

(see Photo 2), aligning the holes in the arm with the
holes in the blade. Be sure the stop pin at the other end
of the arm and the points of the blade are facing you.

3. Insert two #10-24 x 1” lg. round head screws through

the blade and the arm holes and secure them with two
#10-24 hex nuts (the nuts have permanently attached
star washers) as shown in Photo 3. The star washer
side of the hex nut should face the Extension Arm.
Tighten firmly with a 3/8” wrench. Use a screwdriver, if
necessary, to keep the screws from turning while the
nuts are being tightened.

Step 3: Slide Marker Arm Extension 
into the Main Arm

1. With the stop pin at the end of the Extension Arm and

the holes facing you, slide the Extension Arm into the
hollow Main Arm. See Photo 4. 

Note:

You may push the Extension Arm in as far as you

wish for now. When completely assembled, you’ll be able
to immediately adjust to whatever widths between rows
you may want just by retracting or extending the Extension
Arm.

Photo 1

Photo 2

Photo 3

Photo 4

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