D Devices D COMPRESOR M Manual De Instrucciones Y Mantenimiento página 17

Warning! Safety valve must not be used to relief air from the air receiver! Always
protect eyes from compressed air using eye glasses
12.4. Air line and air dryer filter cartridge replacement.
Dryer pre-filtration and line filters cartridges (if present) must be replaced every year. Follow the
present instructions:
I. Disconnect the compressor from the main supply
II. Open the air drain cock or the condensate relief from the air receiver and relief residual pressure
contained in the air receiver
III. Manually unscrew the filter receiver
IV. Unscrew the cartridge as shown in the picture above and replace it with the new cartridge
V. Fix again the filter receiver
Carefully place the o-ring on the lip of the filter receiver,
replace the o-ring if necessary
Models with air dryer are equipped with a pressure safety
valve placed before dryer filters, when it operates filters cartridges
replacement is required.
12.5 Replacement of the non return valve pad
Remove the valve closing nut with o'ring, spring and
pad using a 22mm wrench. Check that the rubber
pad is clean; if there are small metal parts or dust,
remove them all and clean the flat work surface or
replace the pad and secure it carefully to the spring.
When finished, tighten the nut to the valve body.
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