OPERATION
73
When an overload happens:
1. Press the Emergency Stop button (FIGURE 83, item 3) or quickly shift the transmission to NEUTRAL to avoid clutch
overheating.
2. In case of minor blockages, reduce the PTO rpm to the minimum, then shift the transmission to REVERSE for as
long as necessary to unclog the jammed silage.
3. If this does not clear the blockage, disengage the PTO.
4. Engage the parking brake and block the equipment wheels.
5. Switch off the tractor engine.
6. Listen and wait for all rotating parts to come to a complete stop.
7. Clean the machine and remove the excess material which has accumulated.
8. Start the machine at minimum RPM and use REVERSE to free the feed rolls from accumulated crop.
9. Shift the transmission to FORWARD and resume harvesting.
NOTE: It is not necessary to initialize the harvester after a blockage since the controller has not been turned off. If the
controller was turned off, see INITIALIZING THE METAL DETECTOR on page INITIALIZING THE METAL DETECTOR for the
procedure.
SHEAR BOLT FAILURE
The cutter head drive shaft is protected by a 12 mm X 55 mm, grade 8.8 safety bolt (item 1, Figure 87).
The universal joint flanges are equipped with a grease Zerk (item 2, FIGURE 84) to prevent seizing of the shaft to the flange
if the shear bolt breaks. When the cutter head shear bolt fails, the feed rolls keep turning and the FerroDtec controller
will automatically make an emergency stop (for models equipped with the detector).
An intermittent failure alarm (4/5s ON – 1/5s OFF) is activated and the transmission shifts back to NEUTRAL to avoid a
feed roll or header blockage.
Before resuming harvesting:
1. Shift the transmission to REVERSE to empty the feed roll throat and shift back to NEUTRAL.
2. Stop the PTO and turn off the tractor, engage the parking brake and block the equipment wheels.
3. Wait for all rotating parts to come to a complete stop.
4. Replace the broken shear bolt.
5. Clear the feed rolls or header if any crop remains.
NOTE: Clean the processor rolls if needed (see on page HEADER OR FEED ROLL OVERLOAD).
6. Start the tractor, engage the PTO at low speed with the harvester in NEUTRAL, and accelerate the engine speed
quickly to clear the harvester.
7. Shift the transmission back to FORWARD to resume harvesting.
Figure 87 Cutter head drive shaft shear bolt
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