19
GB
ATTENTION: when the machine is put in the idle position with the hose laid
down, the reel makes a violent half turn backwards. Before carrying out
this operation make sure that nobody is near the reel.
3) If the machine is fitted also with shut-off or discharge valve, check that both the
automatic disengaging system at the end of the stroke and the 3-way valve which
controls the opening and the shutting of the valves is activated. If necessary, adjust
the stroke of the valve drive rod (fig.29).
4) Check that the gearbox pinion and the reel drive gear engage correctly
(maximum tolerance 1-2 mm.). If it is necessary to adjust the clearance, loosen the
4 fixing bolts on the gearbox and then slide the gearbox within the slots to achieve
the correct setting (fig.30).
For safety reasons this operation must be carried out when the machine is
not operational
Fig.30
Fig.29
2.5 ADJUSTING OF THE SPEED EQUA-LIZER
If the machine is equipped with a computer the by-pass adjusting is automatic. For computer use see the use and maintenance
manual.
2.7 USE OF THE COMPRESSOR (OPTIONAL)
Connect the compressor pipe to a water inlet with the special ring, open the breather
placed on the connecting pipe (fig. 32) and close the second water inlet with then cap.
Take off the end cap under the rain gun trolley (fig. 33); operate the tractor P.T.O.
setting the speed rate immediately at 540 rpm; close the breather placed over the con-
necting pipe to let the air flow completely into the machine (fig. 32).When the ma-
chine is empty (3-4 minutes) open the breather and stop the P.T.O.
Fig.32
Fig.33
Fig.31
If the speed decreases during the hose retraction, the position of the regulation lever
should be changed in order to reduce the by-pass when the speed equalizer is acti-
vated. Put the lever (fig. 31) into the lower hole, and in the opposite side bring it to
the hole which is more distant from the by-pass pin. If the speed increases, put the
above mentioned lever into the top hole and into the hole which is nearest to the by-
pass pin.
2.6 USE OF THE MACHINE EQUIPPED WITH COMPUTER SYSTEM (OPTIONAL)
Fig.34
CAUTION: when the machine has been drained through the compressor, a
residual pressure of 2-3 bar remains inside the hose so it is dangerous to take off
the end cap without having opened the breather.
Check the lubrication of the compressor during the draining, the oil must pour
through the valve placed over the compressor (visible through the transparent
glass bowl). If necessary, regulate the flow using the adjusting screw (fig34).
