Adjustment Of The Speed Equalizer; Use Of The Machine Equipped With Computer System; Pag; Use Of The Compressor (Optional) - IRTEC G 4 Manual D’INstruccion De Utilizo Y Manutencion

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.26).
4) Adjust the chain tension by the chain tightener (fig.27).
N.B. If the machine is equipped with computer, Top Rain check that at the end of
the operation the limit switch is activated.

2.5 ADJUSTMENT OF THE SPEED EQUALIZER

The regulation is automatic done by the computer

2.6 USE OF THE MACHINE EQUIPPED WITH COMPUTER SYSTEM

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)

Open the valve placed on the compressor-connecting pipe (fig.28); open the breather
placed on the end cap (fig.29) and close the second water inlet with the end cap. Take
off the end cap under the rain gun trolley (fig.30); operate the tractor P.T.O. setting
the speed rate immediately at 540 rpm; close the breather placed over the connecting
pipe to let the air flow completely into the machine (fig.29. When the machine is
empty (3-4 minutes) open the breather and stop the P.T.O.
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 fig.29.
Check the lubrification 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 (fig.31).

2.8 RAPID HOSE RETRACTION

The function of the P.T.O. power takeoff on the gearbox is to rewind the hose
quickly by the tractor. In case of inconvenience such as rainfall etc., to rewind the
hose by the P.T.O. proceed as follows:
1) Make sure that the gearbox lever no.2 is in "hose-rewind" position to prevent the
P.T.O. from running loose.
2) Connect the P.T.O. shaft from the tractor to the gearbox power takeoff.
3) Activate the power takeoff and wind up the hose.
When using the P.T.O. shaft there is no automatic stop at the end of the run. The
power takeoff must therefore be stopped before the hose is completely wound up It
is recommended the last 2-3 metres of the hose be wound up by means of the handle.
ATTENTION: To avoid extremely irregular rewinding of the hose when it is
completely laid out, it may be necessary to pressure the machine as in a normal irri-
gation operation to avoid an excessive
ovality of the hose
Fig.26
Fig.27
Fig.28a
Fig.28b
Fig.29
Fig.30
Fig.31
GB
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