4.3. Before Filling the Bin with Grain
Following this list will prevent problems that may otherwise occur during the unloading process.
1. Lock out all power to bin and all equipment before servicing
2. Check for damage or unusual wear, especially on flighting, bearings, and drive wheel
3. Make sure there are no obstructions in the following locations:
• sweep path along the bin floor bin sweep and underfloor auger flighting
• center or intermediate sumps
4. Check all rollers and slides for free movement and oil liberally.
5. Prior to filling the bin each time, run the bin unload system to check for proper operation.
6. Close the center sump gate and intermediate sump gates.
7. Park the sweep in the “start/park position” slightly behind intermediate sumps prior to filling the bin each
time.
8. Fill the bin from center opening to manufacturer’s specifications.
9. If Powerhead and Unload Screw are removed for storage, install rodent cap on end of tube.
10. If Powerhead is not removed, install supplied aeration cover over discharge spout with wing nuts.
Failure to park the sweep in the “start/park position” could result in damage to the sweep,
under-floor conveyance system, and/or aeration floor.
4.4. Operation of the Powersweep system
Perform the following sections, in order, to fully unload the grain bin.
Unload Grain From the Center Sump
1. Disengage the bin sweep gearbox (push gearbox shift handle towards bin wall to disengage bin sweep).
2. Close all sump gates (center, emergency-sump (if equipped), and intermediate sumps).
3. Remove the rodent cap or aeration cover before operating the bin unload system.
4. Start system.
5. Rack & Pinion gate controls are set so the center well must be opened first. Read the instruction decal un
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der the controls and open the gates in the sequence specified. Failure to follow this sequence could result in
severe damage to the bin structure. When starting to unload open the center sump slightly. Ensure that grain
flows out of the discharge end at a constant rate.
6. Continue to open the center sump and watch for constant product flow at discharge. Do this until center
sump is fully open.
7. For the first 30 minutes, check that the underfloor auger flighting functions without excessive vibration.
Once the grain mass has been fully drawn down, you are now ready to proceed with unloading grain from the
intermediate sumps.
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