Below is a listing of commonly asked questions and basic troubleshooting steps for Seed Hawk seeding systems.
Seed Hawk Troubleshooting Tips
Complaint
Troubleshooting Advice
Toolbar not responding
Ensure the toolbar breaker is in the ON position on the control panel.
If all tank PM4s are blinking, it indicates your CAN network has a problem. Go up to the
Gateway and replace terminator 3 (toolbar) with terminator 4 (spare). If that works, you can
function without terminator 4, as it is only a spare.
The openers are lifting without
commanding them to do so
Check for burned wire/plug in the Toolbar PM4x
For sections 1,2,3 check PM4X #1
For sections 4,5,6 check PM4X #2
For sections 7,8,9 check PM4X #3
Opener section is not engaging
Check opener coils for magnetization. They should be magnetized when you have 12V to them.
Hold screwdriver over top nut to check. If not magnetized it indicates a failed coil. If it is
magnetized, it could be the valve under it.
In 2019, we found some nuts that were over torqued, backing it off just until the seal break will
fix this.
No packing pressure
Check the big coil on the far right hand side of the opener block (packing pressure). It should
magnetize with 12V (hold a screwdriver to the top nut to see if it is magnetized). If it is not, the
secondary O-ring in the valve is most likely the problem.
Wings will not fold
Check the wing block from left to right, gauge are outer wing pressure – inner wing pressure,
the gauge should read around 2800PSI, this is the minimum needed to fold.
Check wing pressures:
45X outer 400-500PSI inner 900-1000PSI
XL outer 400-500PSI, inner 1100-1200PSI
On a TBT, you can adjust the needle valve on the powerskid to give more pressure to the wings
and still charge the battery.
Wings are vibrating upon folding Find the 2 check valves (321578) on the power skid circuit and check for proper function.
Tank not responding
Ensure the tank breaker is in the ON position on the control panel.
If all tank PM4s are blinking, it indicates your CAN network has a problem. Go up to the
Gateway and replace terminator 1 (tank) with terminator 4 (spare). If that works, you can
function without terminator 4, as it is only a spare.
If that does NOT work, check cables going to each bin, unplug one at a time and see if the PM4
lights turn solid. This will help you identify the bad cable. Then unplug each PM4 on that cable
until you locate the bad connector.
ECU not turning off on TBT
We are currently working on this, for now at the end of each work day, unplug the ISO harness
from the tractor to avoid draining the battery.
ECU not showing up upon
pairing
If the red light on the ECU is solid, the ECU needs replacing.
If the ECU light is blinking, try changing the wifi channel. Note that wifi interference (from your
home, shop, etc) can cause this.
