IM-P343-22 CH Issue 2
19
To change the filter proceed as follows:
- Ensure that the air supply to the positioner is isolated.
- Unscrew the filter plug (1) from the SP2 housing using a 5 mm allen key
(refer to Fig. 22).
The replacement filter plug can now be fitted:
- Fit the 'O' ring (4) and filter (3) onto the filter plug (1) (refer to Fig. 23).
- Finally fit the retaining screw (2).
The filter plug can now be replaced into the SP2 housing, checking that the
'O' ring (4) is correctly located.
The pnuematic air supply can now be restored to the positioner and checks made
to ensure that the filter plug 'O' ring has provided the neccesary air tight seal.
Fig. 23
Fig. 22 Filter plug (1)
2
3
4
1
5. Fitting a filter plug kit
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