Overall Hydraulic System Liner 3000 with Communicator TIC Connection to tractor hydraulic system The attachment can be connected to any tractor hydraulic system available on the market. Connection to tractors with constant-flow hydraulic system or load-sensing system The quick release coupling 801-2 is connected to a control unit port of the tractor with adjustable oil flow. This control unit provides oil supply for the attachment and is adjusted to a constant volume flow of Q max = 50 l/min. The system screw (handwheel) 634 is turned out up to the stop so that the input pressure balance 763 is operative.
The quick release coupling 801-3 is in general connected to the pressureless return line T of the tractor. If a pressureless return line is not allowed in continuous operation (e.g. because lubrication of the tractor gearbox is not guaranteed), a double-acting control unit can be used for supplying oil to the attachment. In this case, the quick release coupling 801-2 is connected to port A (feed) and quick release coupling 801-3 to port B (return) of the corresponding tractor control valve. Adjust the volume flow to Q max = 50 l/min; please refer also to the tractor's Operating Manual, e.g. "Continuous operation of hydraulic motors".
The quick release coupling 801-4 (LS, working hydraulics signal) is not used with this connection option. If the tractor is not provided with a flow-adjustable control unit, the volume flow must not exceed 50 l/min. Connection to tractors with constant-pressure hydraulic system The quick release coupling 801-2 is connected to a control unit port of the tractor with adjustable oil flow. This control unit provides oil supply for the attachment and is adjusted to an oil flow of approx. Q max = 50 l/min. The system screw (handwheel) 634 is turned in up to the stop so that the input pressure balance 763 is blocked.
The tractor's hydraulic pump is shut down when the system pressure has been reached. The quick release coupling 801-3 is connected to port T (pressureless return line) of the tractor. The quick release coupling 801-4 (LS, working hydraulics signal) is not used with this connection option. Important! The pressure relief valve 706 must be set approx. 20 bar higher than the tractor's pressure protection (oil will heat up!). Block pressure relief valve 706 if necessary. 1-12 Lin-h-Kap1 12/03