Great Plains NTA2007 Operator Manual - Manual (Page 90)

86 NTA607 or NTA2007 Table of Contents Index Great Plains Manufacturing, Inc.
166-372M Table of Contents Index 2012-01-05
Adjusting Tool Bar Height
Refer to Figure 65
See “Heights and Levelling” on page 32 for how to
check tool bar height. To change the tool bar height, add
or remove master lift cylinder rod spacers
, in the
combinations shown in the chart at the bottom of this
page.
To change spacers:
1. Perform a Lift operation (page 40).
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
settings, disc wear and manufacturing tolerances
can cause actual heights and depths to vary from
chart values. Choose spacer combinations based
on actual 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.
Figure 65
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
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
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
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
32158
Maximum
Opener
Depth
Maximum
Disc Blade
(Coulter)
Depth
Tool
Bar
Height
Spacer
Stack
Height
5.1 cm
(2
.0
0 in
)
3.
8
c
m
(1
.50
i
n
)
3.
2
cm
(1
.2
5 in
)
2.5 cm
(1
.0
0 in
)
1.9 cm
(0
.7
5 in
)