Maintenance - hydraulic system
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12.2 Adjusting the hydraulic system
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The Comfort hydraulic system of the machine must be adjusted on the tractor. It is designed
for continuous circulation. The adjustment is made by adjusting the hydraulic system screw (1)
on the electromagnetic valve block. The electromagnetic valve block is located at the front left
on the main frame of the machine under the guard.
Note
The adjustment depends on the hydraulic system of the tractor and must be made while there
is no pressure in the machine!
Screw in the system screw (1) as far as it will go for:
• Tractor with an open (constant-current) hydraulic system (for additional information,
please refer to the tractor manufacturer’s operating instructions).
• Tractors with LS pump and non-activated load-sensing system
Note
This adjustment is set when the unit leaves the factory.
Unscrew the system screw (1) as far as it will go for:
• Tractor with a closed (constant-pressure or load-sensing) hydraulic system (for additional
information, please refer to the tractor manufacturer’s operating instructions).
• Tractors with LS pump and connected message line
Note
The connection (2) for the message line is located under the hydraulic system screw.
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12.3 Emergency Manual Activation
The electromagnetic valve block is located at the front left on the main frame of the machine
under the guard.
In the event the electrical system should fail completely, the valves are equipped with an
<<Emergency manual activation>>.
• The valves Y1 and Y2 are activated with a pointed object by turning the valve in.
• The valves (Y3 and Y4) are activated by turning in the starwheel screw.
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