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8

REPLACING THE PRESSURE GAUGE

REPLACING THE PILOT REGULATOR

B

A

A

B

C

D

E

F

1-

 Remove the guard

2-

 Unscrew the pressure gauge (

A

)

3-

 Apply some removable sealant on the thread of the spare pressure gauge (

B

), for example  Loctite

®

 242E or 542.

4-

 Screw on the new pressure gauge, making sure the markings are horizontal.

5-

 Remount the guard.

1-

 Remove the guard.

2-

 Remove the regulator knob (

A

)

3-

 Unscrew the bell (

B

) using the key provided

4-

 Remove all the components for the pilot regulator (

C

)

5-

 If you wish to replace the poppet as well, unscrew the 2 screws (

E

) and  remove the poppet presser (

D

) and poppet (

F

).

6-

 Remount the new parts with great care.

7-

 Remount the guard.

Summary of Contents for ONE

Page 1: ...USE AND MAINTENANCE ...

Page 2: ...ply includes 2 screws M5x75 2 washers 5x10 2 nuts M5 ONE has been designed to treat compressed air No other fluid can be used without express authorisation by Metal Work It is preferable to use UNLUBRICATED air If there are devices requiring lubrication it is advisable to install the lubricator downstream ONE as close as possible to the devices involved Connect the ports to the thread by rotating ...

Page 3: ...te whilst the bowl is pressurised The simple manual operation of pushing up the valve will allow the condensate to drain When rotating the button clockwise the valve becomes in locked position and can only work when the button is returned to the central position The semi auto condensate drain is the normally open type When there is pressure in the bowl the drain closes When there is no pressure in...

Page 4: ...itch setting and if an electrical circuit is connected NO YELLOW LED Pressure switch s normally open contact It is on if the actual pressure is higher than the pressure switch setting and if an electrical circuit is connected CLOGGED FILTER SIGNAL If the filter gets so clogged up that it causes an excessive drop in pressure as the air passes through the orange indicator will project from the body ...

Page 5: ...Considering that the air in the cartridge flows outwards the dirt collects inside the cartridge and does not affect the other internal surfaces It is always advisable however to clean the inside of the unit and the plug When you replace the plug tighten it to a maximum torque of 6 Nm taking care not to damage it Use an 8 mm Allen wrench if necessary 1 Turn the knob until you read the desired value...

Page 6: ...nal or a normally close signal It is also connected to the NC and NO LEDs which come on if the actual pressure is less or greater than the set pressure respectively The LEDs only come on if an electric charge max 0 5 A is connected to them as shown in the diagram see subsection on LEDs Regulation is by means of the knurled knob Turn towards to increase the pressure and vice versa Proceed as follow...

Page 7: ...the knob by pulling it upwards and then regulate 4 SHUT OFF VALVE V3V PROBLEM 4 1 No air passes downstream 4 2 The air gets continuously released CAUSE In the manual version the knob is in OFF position No pneumatic control in the pneumatic version The manual V3V is in OFF position REMEDY Put the knob on the ON position Check the presence of the pneumatic control Put the knob on the ON position 3 P...

Page 8: ...elf by pushing sideways 4 Unscrew the silencer on the exhaust E 5 Remove the 1 4 A7 plugs F or any fittings mounted from the supplementary outputs 6 Unscrew the 2 2 2 screws G on the three sides of the guard 7 Remove the guard H by pulling it from the front 8 Remount the guard following the above operations in the reverse order 1 Unscrew the two M4 x 45 screws A 2 Extract the threaded port B 3 Cle...

Page 9: ...242E or 542 4 Screw on the new pressure gauge making sure the markings are horizontal 5 Remount the guard 1 Remove the guard 2 Remove the regulator knob A 3 Unscrew the bell B using the key provided 4 Remove all the components for the pilot regulator C 5 If you wish to replace the poppet as well unscrew the 2 screws E and remove the poppet presser D and poppet F 6 Remount the new parts with great ...

Page 10: ...c board 7 Mount the new pressure switch in the reverse order Grease the OR seal of the valve 8 To get the class of protection IP65 it is necessary to apply new sealant where the existing sealant is damaged A silicon sealant can be used for this purpose 9 Remount the guard 10 Calibrate the new pressure switch following the instructions given above NB during the disassembly stage it s probable that ...

Page 11: ...nance not covered in this handbook please contact Metal Work s Sales Office They will either arrange for the repairs to be made or provide you with full technical details so that you can do it yourselves OTHER INTERVENTIONS IS ENVIRONMENTALLY FRIENDLY As it weighs less than a quarter compared to the conventional units it saves a considerable amount of raw materials such as aluminium and technopoly...

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