Great Plains 2SNG30 Operator Manual - Manual (Page 35)

8/17/2006 202-499m
33 Troubleshooting
Problem Solution
Uneven seeding depth See "Press Wheel Depth Adjustments," page 28.
See "Tractor Draw Bar Hookup," page 17, and "Leveling the
Drill," page 21.
Press wheels not compacting soil as
desired Refer to "Press Wheel Depth Adjustments," page 28. adjust-
ments sections.
Re-adjust press wheel depth to match coulter depth.
Increase down pressure on disk openers.
Grain box not emptying evenly Certain models do not have the same number of seed cups
between each divider of bulkhead. The section with the larger
number of cups will empty sooner.
Seed cups close to the ends of box tend to empty sooner due to
amount of seed available.
Check adjustment levers on each box to see that they are set on
the same indicator number.
Press wheel or openers plugging Drilling in damp or wet conditions may increase this problem.
Openers may be moved from a staggered to an in-line position
to reduce trash thrown from front openers into rear openers.
Reduce down pressure on openers.
Do not back up drill in the field, or stop and allow drill to roll
backwards with openers in the ground.
If using double "V" press wheels, adjust angle bar.
Check Seed-Lok Wheel.
Rubber tire depth control wheels
becoming packed with mud. Install scrapers.
Reduce spring tension on openers.
Improper folding of drills Adjust post frame adjusting links.
Check hydraulic system for air and oil leaks.
Clean out small orifice fittings in wing cylinders.
Make sure that the wing boxes unfold to a straight line. Check
to see that both pull bars are attached to the boxes at exactly
the same distance inboard from the inboard edge of the drill
box {90"} and both are exactly the same length.
Hydraulic adaptors cracking JIC fittings do not require high torque.
Always use liquid pipe sealant when adding or replacing pipe
thread hydraulic fittings. Plastic sealant tape can crack fittings
and plug hydraulic lines. JIC and O-Ring fittings do not require
sealant. O-Ring fittings require a thin coat of oil on the O-Ring.
Important: When using sealant on pipe threads, the friction
between the threads is reduced; therefore, be certain not to
overtighten causing damage to the cylinders, valves or fittings.