Great Plains 3PYPA Operator Manual - Manual (Page 50)

46 3PYPA Table of Contents Index Great Plains Manufacturing, Inc.
401-647M Table of Contents Index 03/20/2012
Electric Clutch Operation
The 3PYPA Planter has two or three clutches in the seed
meter drive system:
• Hydraulic drive planters have 2 clutches.
• Ground drive planters have 3 clutches.
A clutch enables or disables groups of row units. The
information in the table on the next page is normally pre-
set at the factory for your planter configuration.
Refer to Figure 51 (depicting the left group shut off)
The switches Left
/ Center / Right correspond to
the left wing row units, center section row units and right
wing row units respectively. The Center switch has no
function on hydraulic drive planters.
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. When
any switch (plus Master) is ON, the LED for that switch
illuminates steadily.
Electric Clutch Lock-Up
In case of electric clutch failure, an electric clutch can be
mechanically engaged.
Refer to Figure 52 and Figure 53
1.
Remove the rubber plugs from the oil shield
disc to allow access to the lock-up holes. Plugs
simply push out away from the clutch side.
2. Align the cutouts with the holes .
3. Insert the M8-1.25x14mm long 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.
4. Re-install the plugs so they are not lost.
Note: Use only the provided 14mm length bolts. Longer
bolts will damage the clutch. Shorter bolts may not
effect a lock-up.
Marker Fold Marker Tilt
FRAME
Wing Fold Right
CLUTCH
Center Left MASTER
Null4:
Figure 51
CFM: Clutch Switches
29887
M L C R
Null4:
Figure 52
Electric Clutch Lockup
29329
5
1
2
L C R
M
1
2
3 4
5
6
Null4:
Figure 53
Clutch Plate Nearly at Cutout
26168
6
4
3
6