6. OPERATING ENVIRONMENT
6.1
OBJECT OF USAGE
The purpose of a chipper is to produce chips from trees, which due to their diameter and other
measurements are suitable for feeding into the chipper's feed orifice. The in-fed material must
be clean. Dust, sand or soil ingredients accelerate wear on the knives very quickly. Metal bits,
nails e.g., cause denting of the knives. Any large metal pieces may severely damage the chipper.
6.2 APPLICATIONS
If the chipper is intended to be used for chipping down card-board rolls, plastic piping or hard
boarding panels, please contact your dealer before commencing this kind of activity.
6.3 LIMITATIONS OF USE AND
PROHIBITED FORMS OF USE !
LIMITATIONS OF USE
- Limitations regarding the machine operator
The machine operator must not be under the influence of intoxicating substances, alcohol or
strong medication.
In cases of ill health or permanent disability the doctor in charge should be consulted for
permission to operate the machine.
Use of the chipper is prohibited for persons without the sufficient knowledge and skill required to
operate the machine and for persons under the age of 18 years.
- Prohibited forms of use
The chipper must not be used within any areas reserved for the conservation of nature.
The machine must not be used for spreading liquids, inflammable materials, sand or equivalent
non-fibrous materials.
Avoid using the machine in areas where its use could cause inconvenience to its surroundings
due to excessive noise or spreading of dust.
Chipping of highly inflammable materials is absolutely forbidden.
7 PRINCIPLE OF OPERATION
A chipper model not fitted with a feed mechanism operates on the principle that, while chipping
the stem or other wood material, the chipping knives mounted on the rotating chipping flange
draw in the material automatically. The feeding speed depends on the knife setting as follows: A
short knife setting results in a small chip size and a slow intake speed - a wide knife setting results
in a large chip size and consequently in a high intake speed. The chips produced by the action of
the knives are ejected through the knife flange orifices to the blower fan and out of the machine
through the discharge spout.
In chipper models, which are equipped with a feed mechanism, the intake of material is power-
assisted by a set of feed rollers driven by hydraulic motors. The motors in turn are driven by
pressurized oil either from the tractor hydraulic system or a self-contained, independent
hydraulic system via a control valve. The feed control lever has 3 positions: Feed, stop and
reverse.
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