PFT LK 402 IV, Руководство по эксплуатации

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28.01.2019
Page 25
5.3 Switching on
Fig. 7: Ready for operation
After installation, the compressor is ready for operation.
Make sure that the switch is in the “OFF” position (Fig. 7). Insert the
plug into the socket and set the pressure switch switch to “ON” (Fig.7).
Fig. 8: Switch on
• At the first start-up, run the compressor for ten minutes with the air release
valve A fully open (Fig.8). Then close valve A and check that the container
fills up and that the compressor switches off automatically when the
maximum pressure indicated on the label is reached (indicated on
manometer B, Fig.8).
• Now you can convince yourself of the extraordinarily simple functioning of
the compressor. Operation is controlled by the pressure switch C (Fig. 8),
which stops the motor when the maximum pressure is reached and restarts
it automatically when the pressure drops to the minimum value (about 2 bar
below the maximum value).
• To switch off the compressor, never pull the plug out of the socket, but
always switch the switch on the pressure switch to the “OFF” position (Fig.7).
This allows the compressed air contained in the head to be discharged and
facilitates subsequent switching on. The correct operation of the compressor
is indicated as follows:
a) By a compressed air outlet each time the engine is switched off,
b) A longer compressed air outlet (approx. 20-30 sec.) at each switch-on,
if the container is not under pressure.
5.4 Motor protection switch
Fig. 9: Motor protection switch
The compressor is equipped with a motor protection and safety device
(motor protection switch E):
This device is triggered when the motor overheats, which can be caused by
malfunctions. The motor protection switch automatically trips and switches
off the power supply in order to avoid possible damage to the motor.
It is recommended to wait a few (about 5) minutes before manually resetting
the motor protection switch.
The compressor can then be switched on again.
Fig. 10: Switch off
If this protection device trips again when switched on again, the main switch
must be set to “0” OFF and the power supply switched off. Then contact
the technicians at our contract service centres.