Changes

=== Switching ON the system ===

=== Switching ON the system ===

# Turn on the machine by '''pressing''' it on/off switch at the back.  

1.Turn on the machine by '''pressing''' the on/off switch at the back.[[File:ON-OFF switch of the machine .png|center|ON-OFF switch of the machine]]

[[File:ON-OFF switch of the machine .png|center|ON-OFF switch of the machine]]

<div class="center" style="width: auto; margin-left: auto; margin-right: auto;">Figure 3. ON/OFF switch of the machine </div>

# Turn on the compressor by '''turning''' the blue valve on the wall near the sink.  

2.Turn on the compressor by '''turning''' the blue valve on the wall near the sink.

[[File:Air compressor valve.png|thumb|Air compressor valve|link=Special:FilePath/Air_compressor_valve.png]]

[[File:Air compressor valve.png|thumb|Air compressor valve|link=Special:FilePath/Air_compressor_valve.png]]