Great-plains NTA2007HD Operator Manual User Manual Page 85

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Great Plains Manufacturing, Inc. Contents Index Adjustments 81
04/04/2011 Contents Index 166-283M
Adjusting Tool Bar Height
Refer to Figure 66
See “Heights and Leveling” on page 26 for how to
check tool bar height. To change the tool bar height, add
or remove master lift cylinder rod spacers , in the com-
binations shown in the chart at the bottom of this page.
To change spacers:
1. Perform a Lift operation (page 36).
2. Add or remove spacers. Unused spacers are stored
on rods loops welded to the cart-implement link (not
visible in figure). If you store spacers on hoses, make
sure they cannot slide into locations where they
interfere with implement operation.
Note: Chart values are approximate. Press wheel set-
tings, disk wear and manufacturing tolerances can
cause actual heights and depths to vary from chart
values. Choose spacer combinations based on ac-
tual field measurements.
Note: The cylinder has 5.7cm (2
1
4
in) of exposed rod
when fully retracted, for a minimum tool bar height
of 58.4cm (23.0in). All spacer combinations that
increase tool bar height above the minimum must
be a stack of at least 5.7cm in height.
Note: Each full (1)cm or (1)inch of spacer stack height
change changes the tool bar height by 2cm or 2in.
Note: Do not use a spacer stack taller than 10.2cm
(4.0in), or the furrow will be too shallow, or there will
be no furrow at all.
Null4:
Figure 66
Spacers for Tool Bar Height
31226
1
1
2
1
Spacers Used
10.2 cm (4.00 in) 11.4 cm (4.50 in) 58.4 cm (23.0 in) 5.7 cm (2.25 in) X X
8.9 cm (3.50 in) 10.2 cm (4.00 in) 59.7 cm (23.5 in) 6.4 cm (2.50 in) X X
7.6 cm (3.00 in) 8.9 cm (3.50 in) 61.0 cm (24.0 in) 7.0 cm (2.75 in) X X
6.4 cm (2.50 in) 7.6 cm (3.00 in) 62.2 cm (24.5 in) 7.6 cm (3.00 in) X X X
5.1 cm (2.00 in) 6.4 cm (2.50 in) 63.5 cm (25.0 in) 8.3 cm (3.25 in) X X X
3.8 cm (1.50 in) 5.1 cm (2.00 in) 64.8 cm (25.5 in) 8.9 cm (3.50 in) X X X
2.5 cm (1.00 in) 3.8 cm (1.50 in) 66.0 cm (26.0 in) 9.5 cm (3.75 in) X X X
1.3 cm (0.50 in) 2.5 cm (1.00 in) 67.3 cm (26.5 in) 10.2 cm (4.00 in) X X X
Maximum
Opener
Depth
Maximum
Coulter
Depth
Tool
Bar
Height
Spacer
Stack
Height
5.1 cm
(2.00 in)
3.8 cm
(1.50 in)
3.2 cm
(1.25 in)
2.5 cm
(1.00 in)
1.9 cm
(0.75 in)
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