Yetter AIR ADJUST 2940 Operator's Manual page 42

System Start Up Procedure
Below is the 2940 system startup procedure that should be followed every time the 2940-100 Cab Controller is turned on. This will
ensure that component parts of the system are working correctly.
If this is the first start up procedure after installation, make sure to set the dump valve delay and familiarize yourself with cab
controller operation. Before activating the system, save P1 at 35 RU, 30 RD, & 32 WT. Save P2 at 35 RU, 33 RD, & 35 WT.
Step 1: Supply power to the cab controller (start the tractor) & hold the Power button until the cab controller turns on.
Step 2: Turn all pressures (RU, RD, & WT) to 0psi.
Step 3: Press Enter to activate the system. AIR: ON will be displayed. The Yetter compressor will turn on (if it is below 85psi) &
should build to 95psi & shut off. If the Yetter compressor doesn't run & is below 80psi, check the 40A & 80 amp breaker on the
tractor battery. Trip the breakers and reset the breaker arm firmly back into the pocket.
Step 4: When the compressor has shut off, press a preset (P1 – P5) to apply air to the air bags of the residue managers.
Step 5: Press the UP I button (lowest left button) while watching all the residue managers. When this button is pressed and the
indicator light next to UP is lit, the residue managers should all raise.
Step 6: Press the UP 1 button while watching all the residue managers. All the residue managers should drop to half travel and
then settle into position. (change dump valve delay if necessary, see page 44)
ROW CLEANER DO'S AND DON'TS
1. DO NOT use as a tillage tool; Residue Managers are designed to move crop residue & to break up clods & crust.
2. DO NOT operate planter at slow speeds. Ground speed affects how aggressive the residue manager wheels are. Operate at
sufficient speed (refer to you OEM planter manufacturer manual) to maintain good residue flow.
3. DO NOT expect 100% of crop residue to be cleared, it is not necessary and would necessitate engaging the soil. The width of
path cleared depends on ground conditions, depth setting, and ground speed.
4. DO expect to see wheels occasionally quit turning, indicating ideal (shallow) setting which is not moving soil.
5. DO adjust toolbar frame height 20"-22" and drawbar correctly. It is very important to ensure planter opener will follow ground
contours properly. See Page 43 for the planter levelness and height.
6. DO NOT run air pressure below 20psi or above 60psi. Full range of travel can be achieved between these settings.
7. DO grease the hub cavity of the bearings regularly. Even though the bearings are sealed, filling the hub keeps moisture, dirt, &
debris from entering the hub and ruining the seal. See page 46 for greasing intervals.
8. DO NOT run the coulter, if equipped, deeper than the disc opener blades. Coulter should be set to run even or slightly above
disc opening blades depth.
IMPORTANT: For proper operation, the planter frame must operate level (fore, aft and side to side) and at the correct height,
typically 20"-22". Regularly inspect the residue manager for loose or worn bolts & hardware. Repair or replace as needed.
Overview:
This electronic control system works with a pneumatic system that controls pressure in the air bags as well as other air valves in the
system on an agricultural application. The air bags provide independent up AND down pressure to the mechanical devices that are
used on an agricultural implement.
System Layout:
There are (2) main parts to the control system. The first being a VDM (Valve Drive Module), the role of the VDM is to provide Outputs
to control functions of the pneumatic system. The VDM will also provide Inputs to monitor the pneumatic system as well as provide
feedback to the operator. The second part is an in-cab switch panel/display (Cab Controller) that allows the operator to control the
pneumatic system and monitor its performance.
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2940 Operation Guide