Overload Safety Devices
57
9.4.1 Adjusting the Operation Pressure
After connecting the adjusting valve unit to
the tractor spool valve, the system is oper-
able with the maximum and minimum op-
eration pressures adjusted by the factory.
If required the operation pressure can be
adapted individually. For that adjustment
the knobs (1) and (2) are used.
Increasing the maximum operation pressure
Turn knob (1) clockwise.
Decreasing the maximum operation pressure
Turn knob (1) anti-clockwise.
Increasing the minimum operation pressure
Turn knob (2) clockwise.
Decreasing the minimum operation pressure
Turn knob (2) anti-clockwise.
Important: During work the tractor spool valve must be set to floating position,
otherwise the overload protection is no guaranteed, when several
plough bodies trip at the same time.
1
2
1
2
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