PT Series Operator & Parts Manual - McConnel

MACHINE OPERATIONOperating the MachineUpon arrival at the location to be topped, lower the machine fully so that both skids are saton the ground.PT180 models only; adjust top link to slackenoff transport strap (approximately 50mm play).PT240 models only; ensure top link is locatedand secured by pin in slotted hole on headstock. Lift the machine so it clears the ground by approximately 100mm then gently engage thePTO and run at tick-over speed. Lower the machine to the ground, and increase the PTO speed to 540 rpm. Select a forward speed that is suitable for the ground conditions and the type of materialto be cut. Check the machine is ‘floating’ correctly. Ensure on PT240 models that the top link isattached with its pin in the slotted hole on the headstock to allow better flotation.NOTE: When turning at headlands, lift the machine so the skids just clear the ground.This will reduce field damage in wet conditions. If the stubble height is not correct, adjust the skid height accordingly - refer to ‘MachineSettings and Adjustments’.Stopping the MachineWhen stopping the machine, use the following procedure: Reduce forward speed and bring the tractor to a halt. Keep the machine lowered onto the ground. Reduce engine revs to idle speed, and disengage the PTO. When the rotor has stopped turning, raise the machine to the transport position.28