Great Plains 3P1006NT Operator Manual - Manual (Page 22)

18 3P1006NT Table of Contents Index Great Plains Manufacturing, Inc.
151-144M Table of Contents Index 2011-12-20
Stroke Control Spacers (s/n A1058W-)
(Applies to drills with serial numbers A1058W-
For serial number A1059W+, see page 17.)
The height of the drill at rear (when lowered) is adjusted
with a set of stroke control spacers
(part no.
810-242C) included with the drill. Five snap-around
spacers stored on each side combine for 20 different
lengths.
Refer to Figure 8 and the table at right
1.
Remove the desired combination of stroke control
spacers from each lift-assist weldment storage rod
and install the same set
a
on each cylinder rod .
There is no factory recommendation for this, as it
depends on the tractor used.
Check Level
2. Lower drill until the cylinders rest on the stroke
control spacers. See “Drill Lift/Lower (s/n A1058W-
)” on page 21.
3. Pull drill forward to put coulters and openers in
ground, and assure that lift-assist casters are in
trailing position. Set tractor brakes.
4. When correct level has been achieved, set a stop,
lock or reference indicator on the tractor’s hitch
control to prevent lowering below drill-level.
5. Check level of frame front-to-rear. If not level, adjust
the rear height with the stroke control spacers. If
changed, re-check front tool bar height, and
re-adjust tractor 3-Point lift arms. Repeat until level.
a. If unequal spacer counts are ever needed to achieve side-to-side level, see “Eyebolt Adjustment” on page 50.
4
5
6
Spacer Sizes
Stack Length 1 in. 1¼ in. 1½ in. 1¾ in.
inches mm 25 mm 32 mm 38 mm 44 mm
1.00 25 1
1.25 32 1
1.50 38 1
1.75 44 1
2.00 51 2
2.25 57 1 1
2.50 64 1 1
2.75 70 1 1
2.75 70 1 1
3.00 76 1 1
3.25 83 2 1
3.25 83 1 1
3.50 89 2 1
3.75 95 2 1
3.75 95 1 1 1
4.00 102 1 1 1
4.25 108 1 1 1
4.50 114 1 1 1
4.75 121 2 1 1
5.00 127 2 1 1
5.25 133 2 1 1
5.50 140 1 1 1 1
6.50 165 2 1 1 1
28359
Stroke Control Spacer Combinations
Figure 9
Stroke Control Spacers (A1058W-)
28361
Note: If planting in rolling terrain, it may be necessary to
adjust the lift assist cylinders manually with the
tractor hydraulics to allow the machine to float
backwards.
4
5
6