Great Plains YP4425A Operator Manual - Manual (Page 48)

44 YP4425A Table of Contents Index Great Plains Manufacturing, Inc.
401-805M Table of Contents Index 2012-02-23
3-Section Electric Clutch Operation
A clutch enables or disables groups of row units. The
standard YP4425A Planter has three clutches in the
seed meter drive system.
The standard clutch system is strictly operator controlled.
Monitor control of sections requires the optional Swath
Command™ system (page 45).
The switches Left / Center / Right correspond to
the left wing, center section and right wing row units
respectively. The data in the table below is normally
preset at the factory for your planter configuration.
The Master switch controls all rows. For all switches,
“OFF” (down) removes power from the clutch,
disengaging that row set. When a switch (and Master)
are ON, the LED for that switch illuminates steadily.
3-Section Clutch Switch Coverage
Electric Clutch Lock-Up
In case of electric clutch failure, an electric clutch can be
mechanically engaged.
Refer to Figure 48 and Figure 49
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 M8-1.25
×14mm 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 14 mm length bolts. Longer
bolts will damage the clutch. Shorter bolts may not
effect a lock-up.
Clutch Switch Coverage (Rows)
Left Center Right
16 row 01-05 06-11 12-16
24 row 01-08 09-18 19-24
31 row 01-10 11-21 22-31
32 row 01-10 11-22 23-32
48 row 01-15 16-33 34-48
Figure 47
CFM: Clutch Switches
26120
1
2 3 4
2 3 4
Figure 48
Electric Clutch Lockup
29329
5
1
2
1
2 3 4
1
2
3 4
Figure 49
Clutch Plate Nearly at Cutout
26168
6
4
3
5
6
6