User manual Pomac PLP Lobe pump
32 CE/PLP (1406) EN-12
7.8.2. Disassembly of an air loaded safety valve
For explanation of the item numbers see the sectional drawing and parts list in paragraph 9.10.
Disassembly of a safety valve may ONLY be done on a shut down pump, which is cooled
down and vented!
1. Shut off the air pressure and vent the compressed air supply line.
2. Disconnect the compressed air connection.
3. Unscrew the fixation bolts (7) of the safety valve.
4. Remove the complete safety valve casing.
5. Unscrew the Allen screw (14) and disassemble the interior parts of the safety valve.
6. Remove the O-rings.
7. Unscrew the cap nuts of the pump cover and remove the pump cover from the pump.
7.9. Parts inspection
⚫ Replace defective parts always using original Pomac parts.
⚫ Check all oil retainers for possible leakages.
⚫ Check all non-defective parts for scratches, burrs, debris or excessive wear.
⚫ In case the gearbox has been disassembled: Make sure the sealing face between rotor case
and gearbox cover is clean and free from gasket remains.
⚫ Clean all parts with a non-picking cloth.
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