Great Plains CTA4000 HD Operator Manual - Manual (Page 55)

2012-11-28 160-037M
Great Plains Manufacturing, Inc. 51
Troubleshooting
This chart primarily covers problems arising from
implement issues, although it does include a few cart
items. Also consult the Troubleshooting chart for the cart.
Problem Cause Solution
Planting too little Air leaks Check hopper lids, meter seals, manifold caps
and seed hose connections. Adjust latch
and/or replace seals as needed.
Fan speed too low See “Fan speed is monitored and reported
by the seed monitor, but is manually
controlled. The optimum rate depends on
the seed type and treatments. See “Fan
Speed Adjustment” in the cart Operator’s
Manual for further
information.Recommended Fan Speeds” on
page 35.
Implement lift switch engaging too
high See “Implement Lift Switch Adjustment” on
page 39.
Excessive field speed Reduce speed
Excessive gaps between
implement passes Adjust markers.
Actual field size is different Verify field size.
Plugged seed hose Clean out seed tube hose.
Remove excess slack in hoses.
Re-route hoses to avoid sharp bends.
Check that metering is actually stopping when
implement is raised. Adjust or replace
implement lift switch.
Plugged opener seed tube Lift up implement, expose bottom of seed tube
and clean out.
Obstruction in meter or seed
tubes (foreign material or
uncleaned seed) Clean meter and seed tube.
Planting too much Meter setting too high Re-check against chart & calibration.
Actual field size is different Verify field size.
Excessive overlap or irregular
shaped field Adjust marker.