TURBOCAR
Use of the
Machine
5
0.0 15/21
USE
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For larger machines with two-speed gearbox (always with machine stationary
with or without pressurised water and no PE hose reeling in), with GEAR
ENGAGED (see paragraph 5.2 - IRRIGATION item 3), it is required to act directly
on the gear lever (fig. 5.3.6), choosing the desired gear (I or II) and block it with
the appropriate stop and if required aiding with manual rotation of the PTO (fig.
5.3.7), using the handwheel (that’s because the gears are not synchronised).
Pushing (G) the lever towards the machine engages gear II, pulling (H)
the lever outwards engages gear I (in the middle position 0 no gear is selected)
(fig. 5.3.6).
(fig. 5.3.6) (fig. 5.3.7)
In the latter case (machine during irrigation, with pressurised hose and reeling in) it is
required to:
a)
NEVER DISCONNECT THE GEAR LEVER
(IT MUST BE PLACED ON “1” START
- see paragraph 5.2 - IRRIGATION item 3)
b) open the bypass valve almost completely, so that the turbine impeller speed is
almost zero (see paragraph 5.3.1);
c) when the impeller is at MINIMUM, (ALMOST STATIONARY) act on the gear knob
to select the desired gear (I, II, III or IV - fig. 5.3.4) or (I or II -fig. 5.3.6);
It is possible to understand that the impeller is rotating at minimum speed also
through the nylon roller placed between the gearbox and the turbine (fig. 5.3.8); in
practice, when the roller is almost still so is the impeller of the turbine (the gear must
be shifted right then).
Keeping the short tip of the gear knob as reference, from left to right there is I, II,
II and IV gear (fig. 5.3.4 – E); vice versa, keeping the long tip of the gear knob as
reference, from right to left there is I, II, III and IV gear (fig. 5.3.4 – F).
For larger machines with two-speed gearbox, pushing (G) the lever towards the
machine engages gear II, pulling (H) the lever outwards engages gear I (in the
middle position 0 no gear is selected) (fig. 5.3.6).
d) once the gear is engaged, PE hose reeling in may be adjusted again (see paragraph
5.3.1);
(fig. 5.3.8)
THE TABLE BELOW INDICATES THE CORRESPONDING PE HOSE REELING IN SPEED FOR
DIFFERENT GEARBOX RATIOS.
THE INDICATIONS PROVIDED MUST BE CONSIDERED INDICATIVE FOR THE AIM OF
PROPER MACHINE OPERATION, AS THEY DEPEND ON THE MACHINE, ON THE FLOW
RATE AND ON THE GROUND CONDITIONS (FRICTION).
4-SPEED GEARBOX