1
PRECAUTIONS
THINGS TO DO
• The compressor must be used in a suitable environment (well
ventilated with an ambient temperature of between +5°C and +40°C)
and never in places affected by dust, acids, vapors, explosive or
flammable gases.
• Always maintain a safety distance of at least 4 meters between the
compressor and the work area.
• Any coloring of the belt guards of the compressor during painting operations
indicates that the distance is too short.
• Insert the plug of the electric cable in a socket of suitable shape, voltage
and frequency complying with current regulations.
• For 3-phase versions, have the plug fitted by a qualified electrician
according to local regulations. When starting the compressor for the first
time, check the correct direction of rotation and that this matches the
direction indicated by the arrow on the belt guard (versions with plastic
protection) or on the motor (versions with metal protection).
• Use extension cables with a maximum length of 5 meters and of suitable
cross-section.
• The use of extension cables of different length and also of adapters and
multiple sockets should be avoided.
• Always use the switch of the pressure (5) switch to switch off the
compressor or use the switch of the electric panel (20) for models equipped
with this. Never switch off the compressor by pulling out the plug in order to
avoid restart with pressure in the head.
• Always use the handle to move the compressor.
For stationary versions, we recommend using a transpallet or forklifts,
making sure that they position themselves within the support feet, only
lifting the machine from its front side.
If the compressor is handled with lifting devices, you must avoid exerting
force on the machine sides, so as not to damage it. Furthermore, make
sure that the load is balanced.
• When operating, the compressor must be placed on a stable, horizontal
surface to guarantee correct lubrication, see Section A3.
• Position the compressor at least 50 cm from the wall to permit optimal
circulation of fresh air and to guarantee correct cooling.
NOT
THINGS
TO DO
• Never direct the jet of air towards persons, animals or your body. (Always
wear safety goggles to protect your eyes from flying objects that may be
lifted by the jet).
• Never direct the jet of liquids sprayed by tools connected to the compressor
towards the compressor.
• Never use the appliance in your bare feet or with wet hands or feet.
• Never pull the power cable to pull the plug out of the socket or to move the
compressor.
• Never leave the appliance exposed to adverse weather conditions (rain,
sun, fog, snow).
• Never transport the compressor with the reservoir pressurized
• Never weld or machine the reservoir. In the case of faults or corrosion,
replace it completely.
• Do not tamper with the safety valve.
• Never allow inexpert persons to use the compressor. Keep children and
2
START-UP AND USE
• Assemble the wheels (18) and the foot (16), or the swivel wheel (17)
for models on which it is featured; see Section A1-A2. For the versions
with fixed feet, assemble the front clamp kit or the vibration dampers, if
included.
• Check for correspondence between the compressor plate data with the
actual specifications of the electrical system. A variation of ± 10% with
respect of the rated value is allowed.
• Insert the power plug in a suitable socket checking that the button of the
pressure switch (5) located on the compressor is in the "O" (OFF) position
(figures 6a-6b-6c-6d).
• For the 3-phase versions, connect the plug to a panel protected by suitable
fuses.
• For the versions fitted with electric panel (20) ("Tandem" control units or
delta/star starters, type B, E) have installation and connections (to the
motor, to the pressure switch and to the electrovalve if any) carried out by
qualified personnel.
• Check the oil level through the spy-hole (9) (figures 7a-7b) and if need
be, top up the oil by unscrewing the breather plug (fig. 7c), after having
disassembled the plastic protection (15) in the case of compressors type F
Instructions for use manual
Preserve this handbook for future reference
animals away from the work area.
• Never position flammable or nylon or fabric articles close to and/or on the
compressor.
• Never clean the compressor with flammable liquids or solvents. Clean
with a damp cloth only, after making sure that you have unplugged the
compressor.
• The compressor is designed only to compress air and must not be used for
any other type of gas.
• The compressed air produced by the compressor cannot not be used
for pharmaceutical, food or hospital purposes except after particular
treatments. It is not suitable for filling the air bottles of scuba divers.
• Never use the compressor without guards (belt guard) and never touch
moving parts.
• Do not touch the parts marked with this symbol
indicates components that reach high temperatures during operation and
maintain a high temperature for some time after a machine stop.
THINGS YOU SHOULD KNOW
• This compressor is built to operate with an intermittence ratio
specified on the motor's rating plate (for example, S3-50 means 5
minutes ON and 5 minutes OFF). In the case of overheating, the thermal
cutout of the motor trips, automatically cutting off the power when the
temperature is too high due to excess current take-off.
To facilitate machine restart, it is important not only to carry out the
operations indicated but also to set the button of the pressure switch
(5), returning this to the OFF position and then ON again (figures
1a-1b-3a).
On single-phase versions, press the reset button on the terminal box of the
motor (fig. 2).
On 3-phase versions, operate manually on the button of the pressure
switch, returning this to the ON position, or press the button of the thermal
cutout inside the box of the electric panel (figures 3a-3b-3c).
On the two-stage, three-phase versions with power greater than or equal
to 7.5 HP, 220V, and on those with power greater than or equal to 10 HP,
400V, the operator must work the motor protector reset button (fig. 3d) and
then bring the pressure switch back to position ON (figg. 6a-6b-6c-6d).
• The single-phase versions are fitted with a pressure (5) switch equipped
with a delayed closing air vent valve (or with a valve located on the check
valve) that facilitates motor start-up (3); therefore a few-second jet of air
from this, with the reservoir empty, is to be considered normal.
• To guarantee machine safety, all the compressors are fitted with a safety
valve that is activated in the case of failure of the pressure switch (fig. 4).
• All two-stage compressors are equipped with safety valves (14) on the air
delivery manifold to the reservoir and on the connection hose between the
low and high pressure located on the head. These are activated in the case
of malfunctioning (fig. 5a, 5b).
• When connecting an air-powered tool to a hose of compressed air
supplied by the compressor, interruption of the flow of air from the hose is
compulsory.
• Multiple accessories and pneumatic tools can be applied to the compressor:
for instructions for use, please refer to their respective manuals.
• Use of the compressed air for the various purposes envisaged (inflation,
air-powered tools, painting, washing with water-based detergents only,
etc.) requires knowledge of and compliance with the rules established for
each individual use.
and G (figg. 11a-11c, 12a-12f).
• At this point, the compressor is ready for use.
• Operating on the switch of the pressure switch (5) (or the selector for
versions with electric panel, (figures 6a-6b-6c-6d), the compressor
starts, pumping air in the reservoir through the delivery hose. On 2-stage
versions, air is sucked in to the so-called low pressure cylinder liner and
precompressed. It is then routed, through the recirculation hose, into the
so-called high pressure liner and then into the reservoir. With this work
cycle, it is possible to reach higher pressure, with availability of air at 11 bar
(15 bar for special machines).
• On reaching maximum operating pressure (5) (factory-set during testing),
the compressor stops, venting the excess air present in the head and in the
delivery hose through a valve located under the pressure switch (in delta/
star versions, through an electrovalve that is activated when the motor
stops).
•The absence of pressure in the head facilitates subsequent restart.
When air is used, the compressor restarts automatically when the lower
calibration value is reached (approx. 2 bar between upper and lower).
The pressure inside the reservoir can be checked on the gauge (10)
provided (fig. 4).
• The compressor continues to operate automatically with this work cycle
33
G
B
(Section A), which