Great Plains 3PNG15 Operator Manual - Manual (Page 34)

30 3PNG12 and 3PNG15 Great Plains Manufacturing, Inc.
202-553M 10/06/2008
Boxes not emptying
evenly Some boxes do not have same number of
feed cups between each divider of bulk-
head. Load more material than required. Re-distribute when
re-loading.
Main box seed cup door setting Set all doors the same, per seed size.
Seed plug(s) installed Remove seed plug(s).
Meter or tube blocked. Clear blockage.
Press wheel or openers
plugging Planting conditions too wet. Wait until drier weather.
Too much down pressure on openers. Reduce down pressure on openers, page 27.
Backed up with drill in the ground. Clean out and check for damage.
Failed disc bearings. Replace disc bearings.
Scraper worn or damaged. Replace scraper.
Feed cup sprockets
locked up or twisted
feed cup drive shaft Foreign matter lodged in one or more feed
cup sprockets. Clean out feed cup sprockets. Use clean seed.
Dried liquid insecticide inside feed cups. Remove build up by disassembling each feed cup and
scraping foreign substance from turn surfaces.
Small seeds box not
emptying evenly Adjustable divider not set evenly. Move adjustable divider to create more volume in
areas that run out first.
Gauge wheel leans to
left or right U-bolts misaligned Realign brackets.
Axle bearings loose Tighten axles at gauge wheel arms.
Chain Debris, retainer clip Be sure retainer clip is facing opposite way of chain
travel. See page 34.
Marker malfunctions Hydraulic leak Check hoses for leaks.
No oil Check tractor hydraulic reservoir.
Needle valve mis-adjusted Open valve. Cycle markers. Re-adjust speed. Lock
adjustment.
Marker not marking
clearly Blade angle or direction not ideal Change angle or reverse blade, page 23.
Acremeter inaccurate Excess wheel slippage Check tire size, pressure and frame height. If correct,
solution may be to wait for drier conditions.
Passes misaligned. Check that planting passes are not leaving gaps
(under-reporting area) or causing overlap (over-
reporting area).
Wheel slippage is varying from nominal. If variance is consistent, develop a correction factor for
your conditions.
Check that acremeter is for your drill. Activate display. Lower left corner must be:
450.0 rev/ac or 1112.0 rev/ha for 3PNG12 or
364.0 rev/ac or 899.5 rev/ha for 3PNG15.
Contact dealer if otherwise.
Acremeter battery failing Replace acremeter (unit is sealed and battery is not
replaceable). See page 41.
Problem Cause Solution