Omarv ROERO TST 120, Manual

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ROERO - TST
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15
5. MAINTENANCE SECTION

General rules
It’s imperative to execute every maintenance operation with the machine completely still, even when undoing any elements f the
hydraulic circuit.
Warning!
Before any intervention is made, the maintenance person must take the key out of the ignition, after having censure that
the motor is stopped, and disconnect the drive shaft coupling from the power drive of the tractor. Only in this way can it be
certain that the machine cannot set off unexpectedly while the maintenance person finds him/herself in position of risk.
During maintenance or replacement of hydraulic components, particular attention should be paid to avoiding the
introduction of any foreign object, however small into the circuit which may cause malfunction and compromise the safety
of the machine
.
Excepting particular demands maintenance must always be carried out with the tools of the machine in resting position and after the
pressure of the oleodynamic accumulators/hydraulics has been released.
Warning!
Avoid executing any operation with bare hands.
Warning!
In the case of any maintenance operation that may need to be done whil one or more functions of the machine is active,
precise and unbreakable imperatives must be adhered to in that:

There should always be at least two persons present: the operator who has the function of supervising the security
of the person working and the maintenance engineer.

The operator who is at the commands of the machine and the maintenance engineering should be able to see each
other at all times in order that communication between them will be easy and unequivocal.

The operator acts in accordance to orders given him by the maintenance enginer.

Before changing from a still acivity to a moving activity the maintenance engineer should remain in a position of
safety and only draw closet o the moving parts after havingsecured assurance that his/her rodersi have been
received exactly by the operator.

The maintenance should always be done in adeguate light.
The maintenance engineer should be informed of the exact function and movement of every part of the machine.

Periodic checks
Check all parts of the machine daily, in particular check the state of wear of the blades.
Warning!
Broken or excessively worn blades must be replaced.
Warning!
The lack of one or more blades can cause a rapid deterioration of the rotor and cause vibrations Any discrepancy must
be rectified immediately otherwise the safety conditions of the operator and the machine may be placed in jeopardy.
In order to have a perfect balance of the rotor, also replace the diametrically opposite blade

Regulation of the haulm shredder height

The machine must operate in horizontal, positioned on the roller or on the
rear wheels and supported by the three point attachment of the tractor

The eventual slides must be regulated at a few cm from the ground

Do not raise the machine more than 30cm from the ground in order to avoid
dangerous bumps (progressive ondulating movement of the PTO shaft –
Fig.6-)
Warning!
These operations must be undertaken slowly with the greatest care
in compliance with the safety regulations laid down in this manual.
ROERO - TST
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16

Working height
This is determined by the height of the roller or the rear wheels and by the lower hoist arms of the tractor.
The haulm shredder must remain horizontal.
The cutters must not be in contact with the ground. It is advisable not to go down lower that 3cm from the ground. When the optimum
field cutting height is established, regulate the height of the slides, if they are included, to 1cm lower than the cutters in order to avoid
that they come into contact with the ground.
Warning!
These operations must be undertaken slowly with the greatest care in compliance with the safety regulations laid down in
this manual.
Fig.7: position of the cutters, the slides and the wheels in relation to the ground
H: minimum cutting height 3cm
h: minimum slide height 1cm

Cutting height adjustment
For a precise operation and excellent performance, we recommend you to dedicate the necessary time to adapt the machine to the
work you wish to reach.
If you adjust the working height you will save fuel and power and keep tool wear with reasonable limits. The correct use of the brush
shredder mod. ROERO consists in cutting grass, maintaining lawns, shredding vine pruning bits, thin branches and leaves. Therefore
the tools shall not work in touch with the ground, but hosted by it at the required height (fig. 14)
The cutting height can be adjusted by the roller thet can be adjusted in 3 positions. If you lift the roller the cutting height will be reduced,
if you lower the roller the cutting height will be higher (fig. 15)
The roller is equipped with a scraper, whose function consists in preventing excessive deposits of earth and clods from breaking the
sliding movement of the machine and from making it heavier.