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6.7.
ELECTRICAL CONNECTION
The connection of the machine to the main power must be carried out by a skilled electrician in accordance with the
specifications of the standards in force.
Turn the main switch to "0".
Ensure that the main power line is not under tension before starting to connect the machine.
The manufacturer of the machine is not responsible for general protection against short circuit.
The user must connect the machine to the power line, fitting a set of three fuses. For this purpose the following table
shows the recommended values of the fuses which had better be type SIEMENS 5SB NEOZED, depending on the
power absorbed by the machine and the line voltage.
The same table recommends the minimum wire section to be used for connection. The wire entry is on the rear of
the machine.
- The conductors must be connected to the terminals marked:
L1 - L2 - L3
and the yellow and green earth wire to the terminal:
PE
A good earth socket is recommended.
The neutral lead is not connected.
Start the machine for a few seconds to ensure that the tool is turning in the direction indicated by the arrows on the
plate of the casing. If not, switch off the machine, disconnect the power and invert the two phases.
6.8.
PNEUMATIC FEED
Pneumatic feed: dry, filtered and lubricated compressed air. Pressure used must be by 0,5~0,8 Mpa. For
connection use a plastic pipe by 8mm outer diameter.
6.9.
SUCTION
Before starting up the machine, connect it to a suction hood. The connection has to be done in such a way that the
machine automatically activates the suction hood.
For instance, an induction coil can be installed on a supply cable properly connected to the electric system of the
suction hood. The user will be charged for this modification and has to ask a skilled electrician to carry it out..
With 4-shaft machines connected to 4 flexible hoses (150 mm inner diameter, hardly inflammable type), the suction
plant should provide a capacity of at least 8740 m
³
/h.
With 5-shaft machines connected to 5 flexible hoses (150 mm inner diameter, hardly inflammable type), the suction
plant should provide a capacity of at least 10925 m
³
/h.
With 6-shaft machines connected to 6 flexible hoses (150 mm inner diameter, hardly inflammable type), the suction
plant should provide a capacity of at least 13110 m
³
/h.
Suction speed should be at least 30-34 m/sec.
6.10.
NOISE PRODUCTION VALUES
- NOISE PRODUCTION LEVEL:
L
WA
=85,1dB
4 spindles
L
WA
=85,9dB
5 spindles
L
WA
=86,7dB
6 spindles
- ENVIRONMENTAL FACTOR
K = 2 dB (A)
Attention!
Prolonged exposure to a level higher than 85 dB (A) may cause damage to your health; users are always
recommended to make use of suitable personal protection systems (e.g. headphones , ear plugs).
The values shown are production levels and are not necessarily levels for safe working. While there is a
relationship between production levels and exposure levels, this may not be used reliably to determine whether any
further precautions are necessary. Factors which influence the real level of exposure for workers include the
duration of exposure, the characteristics of the buildings, other sources of dust and noise etc., for example the
number of machines and other processes being carried out nearby. The allowed level of exposure may also vary
from one country to another. Anyway, this information will enable the user to make a better assessment of the
dangers and risks involved.
