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unigreen 11
4.5 CARDAN SHAFT
In some models this is supplied on request.
The cardan shaft must bear the CE mark.
It must always have its own instructions that must be followed scrupulously
and it should come with a cover bearing the mark, integrated in every part.
You should have previously checked the length to avoid:
= if it is too long, DANGEROUS THRUST ON THE PUMP SHAFT
= if too short, the POSSIBILITY OF DANGEROUS BREAKAGES
THE MINIMUM OVERLAP OF
THE TWO TELESCOPIC
TUBES MUST NEVER BE
LESS THAN 1/3 OF THE
LENGTH OF THE TUBES.
The power that can be
transmitted by the cardan
shaft must be at least equal to
that required to run the
mistblower.
These power ratings are
indicated in tables N° 14b-15b-
16b (pages 37-38-39).
a) Hook any safety chains to solid anchor points
b) Check that the button or ringnut “E” (FIG. 6) is correctly engaged and
blocked both on the pump side and on the tractor side.
c) Don’t exceed an inclination of 30° in any direction for any reason
d) With the machine stopped, periodically grease the spiders and the pipes,
keeping the connecting zone particularly clean.
e) Avoid letting the end of the cardan shaft come into contact with the ground
with the machine stopped; use the relevant support on some versions for this,
if your machine has no support, hook the external safety chain to a part of the
frame of the machine (ex. control unit support).
f) For towed mistblowers with a steering drawbar, be very careful not to lift the
arms of the elevator too high to prevent the cardan shaft touching parts of the
drawbar.
l) For towed mistblowers, avoid very tight steering circles with the cardan
shaft turning (max 30°) as this could damage both the cardan shaft and the feet
of the pump (FIG. 7).
NEVER USE THE CARDAN TRANSMISSION IF THE FOLLOWING
PROTECTIVE COVERS ARE MISSING:
- TRACTOR POWER-TAKEOFF PROTECTIVE COVER
- CARDAN SHAFT PROTECTIVE COVER
- FIXED PROTECTIVE COVER ON THE PUMP SHAFT
4.6 PUMP
When using the pump scrupulously observe the instructions in the enclosed
handbook supplied by the manufacturer.
The pump can be identified by the ratings plate on the same; the main data on
the pressure and delivery are easy to find on this plate.
Normally the pumps mustn’t exceed 550 RPM; a higher speed won’t improve
performance but there is a risk of compromising the life and safety of the
pump.
There is a safety valve on the pump, calibrated to prevent overpressure. Don’t
tamper with this valve for any reason and don’t block or obstruct the pipes
connected to it in any way.
4.7 SUCTION FILTER
The sprayer is fitted with a suction filter with filter cartridges that have roughly
a 50-gauge mesh, which is equivalent to a hole of 0.4 at 0.35 mm.
An efficient filter lets the sprayer work properly.
You should periodically check that the filter cartridge is clean, this check
should be done more often if there are impurities in the liquid.
To inspect the filter cartridge wear rubber acid-proof gloves as the liquid in the
filter can come into contact with your hands when you open the filter.
Don’t perform this operation with the pump running as the depression produced
blocks the cover preventing the removal.
FIG. 7
FIG. 6
FIG. 8
Valve