GEA VARIVENT Series, Инструкция по эксплуатации

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1.
Turn the handwheel (20), together with piston rod (16), piston (17) and spring,
out of the lantern.
2. Tension the spring using the mounting tool, material no. 222-601.51.
3.
Pull off the circlip (27).
4. Use the mounting tool (A), material no. 222-601.51, to relieve the tension on
the spring and remove the mounting tool.
5. Pull the piston (17) off the piston rod (16) and take all the remaining parts out
of the handwheel.
®
Handwheel has been removed.
10.6 Maintenance
Cleaning the Valve
Notice
Damage to the valve
Damage to the valve can result in a malfunction.
► Observe the safety information sheets issued by the detergent
manufacturers.
► Only use detergents which are non-abrasive and not aggressive towards
stainless steel.
Carry out the following steps:
1. Disassemble the valve, see Section 10.5.1, Page 30.
2. Carefully clean the individual parts.
®
Done.
Replacing Seals
Replace defective seals, but always fit new housing O-rings to ensure the
tightness of the valve. Always use genuine spare parts.
Lubricating seals and threads
Notice
Damage to seals and threads
Damage to seals and threads can result in malfunction.
► Ensure that an adequate film of lubricant is applied. No grease residues
must be visible once the valve has been assembled completely.
► For product contact seals only use suitable greases and oils.
► Observe the safety data sheets issued by the lubricant manufacturer!
Carry out the following steps:
1. Lightly grease the valve disc thread.
2. Grease all seals very thinly.
! Do not grease the O-ring on the valve disk.
®
Done.
Maintenance
Maintenance
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