Operation - Bambi VT Operator's Handbook Manual

4) Operation

Refer to exploded parts diagrams and illustrations when reading this section.
Airline should be fitted to the regulator outlet.
Note ! For VTS Models
Ensure the transit packing has been removed as described in the previous section.
Failure to do so will cause damage and invalidate your warranty
4.1) Starting & Stopping
Plug the compressor into an outlet socket of nominal voltage and fitted with the
correct fuse as shown in section Electrical Connections.
Switch the compressor on (I) using the on/off switch located on the front panel or
pressure switch - see fig 3 pictures:
Note!
Duplex Models VT300/300D, VT400/400D are fitted with a sequential start system to
reduce electrical loading. You will notice one motor starting a few seconds after the
other [single phase only]. This is normal.
As air is used the pressure drops and the motor will restart at the preset pressure.
Approx 2 Bar differential.
Note !
Each time the compressor switches off or the power supply is interrupted, you will
hear a short hiss of air. You are hearing the unloader valve discharging the residual
delivery pipe pressure. This is normal.
4.2) Adjusting Outlet Pressure
Fig. 3 On off switch versions
The compressor will start running and automatically
switch off at the preset pressure.
Use the pressure regulator to adjust the outlet pressure.
To increase line pressure, rotate the black knob next to the
pressure gauge in a clockwise manner, to decrease turn anti
clockwise. It is possible to lock the setting by pushing the knob
down until it "clicks" home – see fig 4.
Fig 4: Gauge layouts
On cabinet [VTS] models, gauges are labelled.
On others:
The smaller gauge is SELECTED pressure
The larger is RECEIVER pressure
3