Great Plains YP1625A Operator Manual - Manual (Page 42)

38 YP1125A & YP1625A Table of Contents Index Great Plains Manufacturing, Inc.
401-625M Table of Contents Index 2013-08-13
Electric Clutch Operation
Refer to Figure 46, which depicts the left planter side on and
the right side shut off.
Electric clutches allow for turning planting off while the
planter is lowered. When the planter is raised, clutches
are always
a
off, due to the lift switch.
A clutch for each drive shaft allows for independent
control of each side of the planter. The clutches are
controlled via the CFM “CLUTCH” switches.
For regular field operation, turn “MASTER” , “Left”
and “Right” clutch switches to the “ON” position. This
activates the magnet on each clutch and allow clutch
shafts to rotate.
To shut off planting on one or both sides to
accommodate point row while planter is lowered, switch
either to “OFF” position. Turning the MASTER switch off
disengages both sides. If the planter has hydraulic meter
drive, MASTER off also shuts down the drive motor.
Electric Clutch Lockup
Refer to Figure 47
In case of electric clutch failure, electric clutches can be
locked in the engaged mode using metric bolts stored in
the brace plate above each clutch.
1. Remove rubber plugs from oil shield to gain
access to bolts .
2. Align cutouts at bolt holes .
3. Insert M8-1.25
×14 mm long metric bolts .
Note: Use only 14 mm length bolts as provided or
machine damage can occur. Longer bolts will
damage the clutch. Shorter bolts may not effect a
lock-up.
4. If you observe half the hole obstructed by a metal
disc
, you are not at a cutout.
5. Replace oil shield plugs.
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.
Clutch Slippage Risk:
Keep oil shield and oil shield plugs in place. Do not allow
lubricant to enter the clutch when lubricating the planter.
If clutches slip, operate with clutch lock-up until overhaul or
replacement of clutches.
a. On planters with hydraulic drive, the seed monitor overrides the lift switch during “FILL DISK” and “5 REV TEST” operations.
Figure 46
CFM: Point Row
28490
1 2 3
1 2
3
Figure 47
Electric Clutch Lockup
29329
4
3
2
1
1 2
3
4
3
Figure 48
Clutch Plate Nearly at Cutout
26168
5
4
5
5