Great Plains 6548 Series VII Field Cultivator-Floating Hitch Operator Manual User Manual
Page 57

Great Plains Mfg., Inc.
Section 4: Operating and Maintenance
1/25/2005
Series VII 6330-6548 Field Cultivator, Floating Hitch 560-205M
55
10. Check safety chain hookup. Make sure all
warning lights are hooked up and functioning 
correctly. 
 
11. Check the tire pressure for proper inflation 
and check the tightness of the lug bolts. Tire 
pressure amounts are located on the sidewall 
of each tire. 
 
 
12. Check for any bolts that may need tightened
or retightened. Grease all the hinge points. 
The hubs come pre greased and will not need 
more grease at this time. 
 
 
13. Put transport lock in place and refold the 
machine slowly. Put wing stop pins in place. 
Always use the transport pins when moving 
from field to field. You are now ready to go to 
the field. 
General Operation Instructions and In-Field Adjustments
1. Remove the transport pins and unfold the
machine. Make sure the fold cylinders are fully 
extended to allow the wings to fully flex in the 
field. 
 
2. If possible have someone observe the machine 
during first time operation for levelness—front 
to rear and wings to center frame. Adjust each 
as needed. For front to rear, either extend or 
shorten the length of the turnbuckle on the self-
leveling. Never run the machine with the back 
lower (deeper) than the front. To adjust the 
machine from side to side, use the eyebolt on 
each wing. Adjust the inside wings first and 
then the outside wings. The gauge wheels 
should be set in field position to be ½” to 1 ½” 
off the ground. 
 
3. The ideal working speed is 6 to 7 mph. 
Working too slow may cause plugging, poor 
incorporation or mixing of crop residue and 
reduced weed kill. Running too fast may 
cause streaks in chemical incorporation and 
ridging. 
 
4. The field cultivator is designed as a secondary 
tillage tool and is designed to leave a finished 
seedbed following some form of fall or spring 
tillage. For best results, if at all possible, run 
the machine at a slight angle to the rows. This 
will improve trash flow and help spread the 
residue more evenly throughout the field. 
5. When you have the machine set to the desired
working depth, set the depth stop slide on the 
depth control bar. This is located at the front of 
the machine on the brace bar. This will 
maintain a constant depth each time after 
raising and lowering the machine. 
 
6. If after setting the depth stop, the detent on the 
tractor kicks out before the stop contacts the 
button on the depth stop, slow the hydraulic 
flow speed down. If this problem still persists, 
contact the factory service representative for 
other possible adjustments. Do not try to 
adjust the rebound valve without first 
contacting the factory service rep. 
 
7. Adjust the drag to leave the desired results 
while maintaining the trash flow through the 
drag. 
a.) On the spike drag, start with 5 links
hanging from the chain in drag arm bottom 
slot. (This is the starting point for worst 
conditions.) The cleaner the ground, the 
shorter the pull chain may be pulled up. 
On the spike drag, one of the links in the 
first row of angles is turned over. This 
allows the trash to start flowing through the 
drag easier by changing the angle of the 
ASSEMBLE WITH LINK UP AS 
SHOWN. IN SOME 
CONDITIONS THE FRONT 
LINK MAY BE ASSEMBLED 
DOWN TO HELP START 
TRASH TO FLOW THROUGH 
THE HARROW. 
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