PRONAR ZEFIR 85, Servicing Instruction

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PRONAR
E. WORKING WITH THE TRACTOR
PRONAR
39
Using knob 1 (Fig. E-18), adjust the tool lowering speed so that it would not damage the tool. Lifting
appliance lowers faster, because hung-up tool is heavy.
Turning the knob clockwise decreases the lowering speed of the tool.
Using lever 2 (Fig. E-18) adjust the sensitivity of the lifting appliance action (response time). In order
to increase the sensitivity of the lifting appliance action, one must pull the lever backwards. Moving the lever
forward decreases the sensitivity if the lifting tool action. In some cases high sensitivity could cause
vibrations. In order to reduce the vibration move the lever forward little by little.
Using lever 3 (Fig. E-18) the operator can lift the tool and then place it down, keeping the previous
positioning of regulatory levers of three-point hang-up system. This way of lifting up and placing down the
tool is used when returning the tractor on the field.