User Guide

For cleaning, inspection or replacement of the
entire cartridge, proceed as follows:
1. Isolate the unit.
2. Open the lower control knob.
3. Unscrew the adjusting screw until it stops.
4. Remove the upper cover.
5. Extract the cartridge using pliers.
6. The entire unit, after inspection, can be
reassembled or replaced using a spare cartridge.
7. Re-adjust the equipment.
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5
Maintance
3
Replacement
parts
NA10363 Replacement gauge 0-60 psi/0-4 bar, ¼" NPT
F59650 AutoFill™ 553 series replacement cartridge
NA10197 AutoFill™ clear plastic disc cover
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