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IMPORTANT
General rule all hydraulic adjustments: Always start adjustment by closing the valve. Open gradually until
wanted speed is achieved. The oil must also have correct operational temperature.
BASIC: By turning the valve clockwise, the flow is reduced and therefore the speed. The opposite occurs
when turning the valve counter clockwise. The exception is; Feeder table speed, (valve 56). By turning this
valve clockwise, the speed will increase.
4.9.2 Wrapper, adjustments
Wrapper arm, fast speed adjustment
Valve 50 is controlling the total flow to the wrapper. If the valve is turned clockwise, the total oil volume will
decrease and all the movements in wrapper unit will be slower.
Valve 51 is controlling the amount of oil to the wrapper arm. If the valve is turned clockwise the arm speed is
reduced. Wrapper arm, maximum allowable rotation speed is 25 RPM
HOW TO ADJUST WRAPPER:
Close the valve nr.50, then open 3/4 turn (basic setting). Close valve nr. 51 completely, then open gradually
until correct speed on the arm is achieved. Maximum 25 RPM. Adjust the speed on the belt with valve 50, to
correspond, the rotation of arm and overlap of film layers.
Wrapper arm , slow speed adjustment
After the fast speed is correctly adjusted, the slow speed must be set. By turning valve nr. 69 adjust and set
the slow speed to maximum 10 RPM.
NOTE: The slow speed must be correctly adjusted to ensure the film cutter is working properly. The speed
will increase when the oil is warm. Observe the wrapper arm carefully and adjust the slow speed once again
if necessary.
Knife arm, setting
The rise and lowering speed of the arms must be correctly set. If the speed is too high, the film is torn instead of a controlled cut. The speed of knife arms is adjusted by turning valve nr. 53 (right arm), and valve nr.
54 (left arm) The speed is reduced by turning clockwise.
NOTE: Both sides need to be adjusted equally, the arms should have a smooth motion, and not slammer.
Basic setting: Close the valve, then open 1/2 turn.
Wrapper table tilt speed
By adjusting the wrapper tilt -speed, we can change the bale drop speed. By turning valve nr. 52 clock wise,
the drop speed will increase. To avoid the risk of uncontrolled unloading of bale, the drop speed shouldn't
be set to fast.
Basic setting: Close valve, then open 3/4 turn..
51