GREENTIME GT-C100 Instrucciones página 29

STARTING
Check that the mains power matches that
indicated on the electrical data-plate (fig.14) –
the permissible tolerance range is +/-5%.
When first starting compressors operating on
3-phase voltage, check the rotation direction of
the cooling fan by comparing it with the
direction of the arrow on the belt guard or on
the protective housing. Turn or press into
position "0" (according to the type of pressure
switch fitted on the appliance) the knob located
on the upper section (fig. 15). Fit the plug in the
power socket (fig. 12-13) and start the
compressor, turning the pressure switch knob
into position "I". the compressor is fully
automatic and is controlled by the pressure
switch which stops it when tank pressure
reaches maximum value and restarts it when it
falls to minimum value. The pressure difference
between maximum and minimum values is
usually about 2 bar (29 psi).
E.g.: the compressor stops when it reaches
10bar(145 psi – maximum operating pressure)
and restarts automatically when the pressure
inside the tank drops to 6 bar (87 psi).
After connecting the compressor to the power
line,
Load it to maximum pressure and check
exactly how the machine is operating.
NOTE: the head/cylinder/delivery tube unit can
reach high temperatures. Take care when
working near these parts and don´t touch them
to avoid possible buns (fig. 18 – 19).
IMPORTANT
The motors of compressors are supplied with a
manually resetting automatic thermal-breaker,
located outside the terminal board cover. When
the breaker is tripped, wait for a few minutes
and then reset the breaker manually. (fig. 20)
ADJUSTING OPERATING PRESSURE (fig.
23)
You do not have to use the maximum operating
pressure at all time. On the contrary, the
pneumatic tool being used often requires lees
pressure. On compressors supplied with a
pressure reducer, operating pressure must be
correctly adjusted.
Release the pressure reducer knob by pulling it
up, adjust pressure to the required value by
turning the knob clockwise to increase
pressure and anti-clockwise to reduce it. When
you have obtained optimum pressure, lock the
knob by pressing it downward (fig. 23). For
pressure reducers equipped without a pressure
gauge, the set pressure can be seen on the
graduated scale located on the reduced body.
On pressure reducers equipped with a
pressure gauge, pressure can be seen on the
gauge itself.
WARNING: some pressure regulators do not
have "push to lock", therefore simply turn the
knob to adjust the pressure.
MAINTENANCE
Before attempting any maintenance jobs on the
compressor, make sure of the following:
- Master power switch in position "0".
- Pressure switch and the control unit switches
all off, in position "0".
- No pressure in the air tank.
Every 50 hours of duty: we advise you to
dismantle the suction filter and clean the
filtering element by blowing compressed air on
it (fig. 24). You are recommended to replace
the filter element at least once if the
compressor operates in a clean environment,
but more frequently if in a dusty environment.
The compressor generates condensate water
which accumulates
condensate in the tank must be drained at least
once a week, by opening the drain tap (fig. 26)
under the tank. Take care if there is
compressed air inside the cylinder, and water
could flow out with considerable force.
Recommended pressure:
Condensate of compressors that are oil
lubricated must not be drained into the sewer
or dispersed in the environment as it contains
oil.
OIL CHANGES – TOPPING UP WITH OIL
The compressor is filled with synthetic oil "SAE
5W50".
in the tank. The
1-2 Bar max.