Great Plains 1525P Operator Manual - Manual (Page 23)

8/14/2006 118-949M
21 Operating Instructions
Opener Operation
IMPORTANT! Do not back up with openers in
the ground. To do so will cause severe dam-
age and opener plugging.
For information on opener adjustments, refer to
page 24. For more information on troubleshooting
opener problems, see “Troubleshooting”, page
51.
Marker Operation
Optional marker attachments are available from
your Great Plains dealer. Before operating mark-
ers, make sure hydraulics are properly bled as
described under “Marker Adjustments”, page 45.
Dual markers equipped with a sequence valve are
powered off the same hydraulic circuit. Starting
with both markers folded, the folding sequence is:
1. Activate lever - Right unfolds; left stays
folded.
2. Reverse lever - Right folds; left stays fold-
ed.
3. Activate lever - Left unfolds; right stays
folded.
4. Reverse lever - Left folds up; right stays
folded.
5. Sequence repeats.
You can adjust marker folding speed. Refer to
“Marker Adjustments”, page 45, and adjust folding
speed to a safe rate. Folding markers at high
speed can damage markers.