Fig. 8-1
8.0
SPEED-SETTING OF THE WRAPPING ARM.
8.1
Start the tractor and let it run at approx. 1000 revolutions per minute. Lift the machine clear of the
ground.
The oil flow to the machine is adjusted by two control valves on the machines' "shoulders".
8.2
The control valve on the "shoulder" where the hydraulic hoses come in to the machine, is for
adjustment of the wrapping arm speed. (See fig. 8-1).
8.3
Adjust the wrapping arm speed to approx. 22 revolutions per minute. (Just below three seconds per
revolution.) The adjustment is carried out by turning the wheel on the control valve. Turning
clockwise REDUCES
the speed and turning
counterclockwise INCREASES
the speed.
It is recommended not to wrap with higher speed than 22 revolutions per minute, because then the
plastic film will "catch" more air, and this air do not reach to evacuate from the bale. The result is
bad fodder.
OBS!
Max. allowed wrapping arm speed is 27 revolutions per minute.
REMEMBER!
Increased speed of tractor engine do not increase the wrapping speed, it only increases the
oil flow into the system and by that also the temperature in the hydraulic system.
* Emergency stop: see chapter 2.1
26
