Install disc and depth gauge, Set initial extension and tension, Xtension is set at step 96.) – Great Plains NTA2007HD Assembly Instructions User Manual
Page 14
14
2013- Single Fold Marker
Great Plains Mfg., Inc.
113-850M
2013-10-10
Install Disc and Depth Gauge
Start with the left marker.
Sharp Object Hazard:
Wear gloves and be cautious when working with marker discs.
The edges are sharp.
Refer to Figure 19
89. Select one each new
Place the disc blade
The disc is shown concave side toward arm, but it
may be mounted concave side out per user prefer-
ence.
Add the depth gauge
, rim side toward arm, the
flat washer
and a jam nut
. Avoid crushing the
nylon depth gauge when tightening the first (inner)
jam nut.
90. Select one each new
Add the lock washer
and the second jam nut
to the axle. Tighten the second jam nut, against the
first, to Class 5.8 (Grade 2) torque specification.
91. Adjust the bearing assembly
for the desired disc
angle of throw.
92. Adjust the guard so that the double-end tube is
aligned with the disc edge.
93. Secure the bearing/guard fasteners to torque spec.
94. Repeat step 89 through step 93 for the right marker.
Set Initial Extension and Tension
95. With the implement still lowered, extend a marker
on one side. At full retraction, it should remain sus-
pended above the ground. Set the circuit to Neutral
and shut off hydraulics.
96. Set the approximate initial marker extension per the
instructions in the 166-283M Operator manual.
Because the implement is typically not into the
ground at this time, the setting is approximate.
97. Set the initial marker tension to 23 kg (50 lbs.) per
the instructions in the 166-283M Operator manual.
Null4:
Null4:
Figure 19
Install Disc & Depth Gauge
31352