Yetter 2940 Short Floating Air Adjust Residue Manager - Manual (Page 48)

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2940 Operation
2940 AIR ADJUST SYSTEM INFORMATION
Operation Settings:
“How much Down/Lift Pressure should I be running?”
That depends. The amount of Down/Lift Pressure will vary greatly across soil types,
tillage practices, soil moisture, row unit weight and many other variables. Manage the
pressure in the Down and/or Lift circuits in order to maintain 90%+ Ground Contact while
keeping the pressure between 10-60 psi. The cab Controller will display on the screen,
the Tank pressure in psi, and the Down/Lift circuits in psi. A typical starting range would
be 32 up and 30 down. The 2940 controller allows for 5 saved settings. Press and hold
preset to store setting desired. For no-till increase your down pressure settings and for
conventional you will decrease your down pressure setting.
Normal operating ranges:
• Down Pressure Bags: 10-60 psi
• Lift Pressure Bags: 10-60 psi
Tank Pressure: 80 psi to 95 psi
The tank has a safety relief valve that will automatically exhaust excess
pressure in the event that the pressure would exceed 150 psi.