Great Plains YP3025A Operator Manual - Manual (Page 51)

Great Plains Manufacturing, Inc. Table of Contents Index Operating Instructions 47
02/16/2012 Table of Contents Index 401-705M
Clutch Operation
The YP3025A Planter has drive system clutches, which
enable or disable row unit meter drive:
• (standard) an electric clutch for each planter section
(left wing, center, tight wing; 3 clutches total), or
• (Swath Command option) a pneumatic clutch for each
row, or, on twin row, for each row pair.
Switches on the CFM provide control of clutches for the
entire planter, or for each planter section. This control is
in addition to that provided by the lift switch (all rows on/
off), and the Swath Command option (arbitrary sets of
clutches on/off).
The switches Left / Center / Right correspond to
the left wing row units, center section row units and right
wing row units respectively.
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.
The information in the table at right is normally preset at
the factory for your planter configuration.
Clutch Overrides
In the event of clutch problems, the systems are
designed to act as follows:
• Electric (section) clutches disengage on loss of power.
• Pneumatic (row) clutches engage on loss of air pres-
sure.
To continue planting until a problem can be corrected,
take these steps:
• Electric clutch (standard):
Lock-up bolts are provided to engage them in the
event of power loss or clutch slippage. See page 48 for
lock-up instructions.
• Pneumatic clutch (Swath Command™):
Other than troubleshooting, no action is required at the
clutch. Pinch off any leaking tubing to prevent pres-
sure loss at other rows.
Null4:
Figure 49
CFM: Clutch Switches
26120
1
2 3 4
Rows Clutch Switch Coverage
Model Left Center Right
YP3025A-1230 01 - 04 05 - 08 09 - 12
YP3025A-16TR36 01 - 04 05 - 12 13 - 16
YP3025A-1820 01 - 06 07 - 12 13 - 18
YP3025A-2315 01 - 07 08 - 16 17 - 23
YP3025A-2415 01 - 07 08 - 16 17 - 24
YP3025A-24TR 01 - 08 09 - 16 17 - 24
YP3025A-3610 01 - 11 12 - 25 26 - 36
YP3025A-1270 01 - 04 05 - 08 09 - 12
YP3025A-2335 01 - 08 09 - 16 17 - 23
YP3025A-24TR70 01 - 06 07 - 16 17 - 24
Row groupings controlled by CFM switches may vary from this table if
Swath Command™ is installed. Swath Command™ is not available for
row spacings below 15in (38cm).
2 3 4
1