Great Plains 3PYP Operator Manual - Manual (Page 34)

30 3PYP Table of Contents Index Great Plains Manufacturing, Inc.
401-312M Table of Contents Index 2014-09-09
Electric Clutch Operation
Your planter has two or three clutches in the meter drive
system. Each clutch enables or disables groups of row
units (see table next page). This mode of operation may
be needed, for example, for planting a pass that isn’t the
full width of the machine.
Which row units are controlled by the clutch switches
depends on how your row units are driven.On
ground-drive machines, the Left/Right switches control
only the wing row units. On hydraulic-drive machines, the
Left/Right switches each control half the row units (and
the Center switch has no function).
The Master switch controls all row units, regardless of
drive type. For all switches, “OFF” (down) removes power
from the clutch, disengaging that set of row units.
Electric Clutch Lock-Up
In case of electric clutch failure, an electric clutch can be
mechanically engaged.
Refer to Figure 28 and Figure 29
1. Remove the three M8-1.25x14 mm metric bolts
from their storage locations near the clutch. Save the
nuts.
2. At the clutch, align the cutouts with the holes .
3. Insert the M8-1.25
×
14 mm metric bolts .
If you observe half the hole obstructed by a metal
disc
, you are not at a cutout.
If the entire hole is obstructed by a metal disc , you are
not at a cutout.
When at a cutout, the bolt will screw in with minimal
resistance until the bolt head reaches the clutch face.
Note: Use only the provided 14 mm length bolts. Longer
bolts will damage the clutch. Shorter bolts may not
effect a lock-up. Replacement bolts are Great
Plains part number 802-782C.
Figure 27
Cab Selector Controls
25246
Marker Fold Marker Tilt
FRAME
Wing Fold Right
CLUTCH
Center Left MASTER
Figure 28
Electric Clutch Lockup
29329
1
1
Figure 29
Clutch Plate Nearly at Cutout
26168
4
3
2
2 3
1
4
4