Great Plains V-300F Operator Manual - Manual (Page 99)

11/15/2007 148-057M-A
Great Plains Manufacturing, Inc. Troubleshooting 95
Troubleshooting
Problem Solution
Drill raising and low-
ering rough and
uneven Check for too little play in slide-block area. Refer to Maintenance, “Maintenance and Lubrica-
tion,” See “Leaf Spring Adjustment” on page 101.
Check for air trapped in hydraulic lines or cylinders. Bleed hydraulics if necessary. See “Bleed-
ing Hydraulic Systems” on page 96.
Coulters not going
deep enough Retract tongue cylinder and re-check level. See “Leveling Drill” on page 19
Add weight to hitch frame. See “Frame Weights” on page 73.
Too much weight is being used by openers; set drill openers to lighter spring setting. See “Row
Unit Down Pressure (Spring)” on page 90.
Shorten coulter springs to increase down pressure. See “Coulter Down-Force” on page 72.
Drill not tracking
behind coulters Check if coulters are aligned with openers.
Check that pivot-lock tubes are in drilling position. See “Pivot Lock” on page 32.
Check if leaf spring is out of alignment. See “Leaf Spring Adjustment” on page 101.
Openers plugging in
no-till conditions Drill across standing residue.
Check opener disk blade spacing. See “Adjusting Disc Contact” on page 91.
Drill seeding too
deep Change the press-wheel setting. See “Opener Depth (Press Wheel Height)” on page 93.
Uneven seed spac-
ing or uneven stand Check for plugs or plugging in seed cups.
Check for ground drive skidding or skipping. Causes can include low tire pressure, packer
wheels carrying too much weight, coulters or opener forces set too high, coulters or openers
running too deep, and damp conditions making the soil too slick.
Ground speed to high. Reduce ground speed.
Check that opener disks turn freely.
Use a faster drive type and a lower seed-rate-handle setting. See “Material Rate Adjust-
ments” starting on page 74.
Increase opener down pressure so opener disks penetrate. See “Opener Down-Pressure” on
page 73.
Check for trash or mud build-up on optional Seed-Lok ® wheels.
Opener disks not
turning freely Check for trash or mud build-up on disk scrapers. Re-adjust scrapers. See “Disk Scraper
Adjustments” on page 91.
Check if scrapers are too tight, restricting disk movement. See “Disk Scraper Adjustments”
on page 91.
Check disk bearings.
Check opener frame for possible damage.
Check if opener disks turn freely by hand but not in field. If so, reduce down pressure on open-
ers. See “Opener Down-Pressure” on page 73.
Check press-wheel adjustment for seeding depth. See “Opener Depth (Press Wheel
Height)” on page 93.