GREAT PLAINS Yield-Pro 3PYPA, Руководство оператора

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3PYPA Table of Contents Index Adjustments
Great Plains | 401-647M | 2019-06-11 Table of Contents Index 61
Hitch Shims
Refer to Figure 69
(an exploded view - remove only specified parts)
If the planter tends to pull to the right or left, inserting,
moving or stacking hitch shims may correct the problem.
The standard planter has one shim installed on the left. A
spare hitch shim was shipped with the planter.
To remove or insert a shim:
1. Loosen the eight nuts
and bolts on the lower
hitch, only on the side to be changed.
2. At the four set screws , loosen the four jam nuts.
Drive the set screws in until the existing shim is
free, or the gap is large enough to insert a shim.
3. From the top, insert or remove:
401-943D SHIM HITCH FLANGE
4. Back out the four set screws. Tighten the eight nuts
and bolts. Turn the set screws in until they make
contact. Secure them with the four jam nuts.
Height Switch Adjustment
Refer to Figure 70
The planter includes a sensing switch that signals the
seed monitor (and activates the optional hydraulic drive),
when the planter is lowered for planting.
Although factory-preset for typical planting conditions,
Great Plains recommends adjusting this switch for your
exact field conditions and planting depth. Check the
switch seasonally thereafter, or when planting conditions
change. Also perform this adjustment if the switch is
replaced or dislodged.
The switch is located on the parallel arms connecting the
planter mainframe to the air cart.
Refer to Figure 71
1. Lower the planter to the height at which seed
delivery is to begin.
2. Loosen bolts holding switch bracket to frame.
3. Move bracket and switch up or down so switch
toggle arm makes contact with upper parallel
arm .
4. Move switch/bracket down
1
/
4
inch. Tighten bolts.
 It may be necessary to loosen the screws holding
the switch to the bracket and rotate the switch slightly
on the bracket.
 If the switch is ever completely removed, be sure to
replace it with the cable exit at the bottom. If the cable
is at the top, switch operation is reversed, and
moisture will accumulate in the switch, causing
eventual switch failure.
Figure 69
Hitch Shim
29859
1
15
2
3
1 2
3
15
15
Figure 70
Height Switch Location
29123
1
1
Figure 71
Height Switch Adjustments
25442
5
4
3
2
6
2 3
4
5
6