Setting Marker Arm Length-4.6 m (15 ft) and 6.1 m (20 ft) Drills

NOTE: If marker arms will not stay in adjusted position, drill set screw "dimples" in solid inner tube so marker arm stays at adjusted length when screws are tightened.

1. Loosen jam nuts and set screws (D). Set telescoping arms (A) with disk opener towards ground so approximately 482 mm (19 in.) (B) of arm is exposed.

2. Adjust arm length so dimension (C) from centerline of machine to edge of marker disk is equal to the width of the machine: 4.6 m (15 ft) drill 4572 mm (180 in.) or 6 m (20 ft) drill 6096 mm (240 in.). Tighten set screws (D).

3. Loosen cap screws (E) and turn disk opener assemblies so disk angles to rear. Tighten cap screws.


A-Telescoping Arms
B-Dimension, 482 mm (19 in.)
C-Dimension Equal To Width Of Machine
D-Set Screws
E-Cap Screws

N50074
N49812A

4.6 m (15 ft) Machine Shown

AG,OUO1074,516 -19-22FEB00-1/1