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Series 616
MAINTENANCE
893179ED.DOCX
Edition 2020-01-22
37/56
7.2.2
Replacement of shaft feed through seals and valve cleaning
7.2.2.1
Required tools
•
Allen Wrench 2mm
•
Allen Wrench 3mm
•
O-ring removal tool
(see chapter Accessories)
•
Isopropyl alcohol
•
Cleanroom wipes
•
Vacuum grease (see chapter spare parts)
Description
Required tool
1. Vent vacuum system on both sides of the valve.
2. Move the plate to position 50% open.
3. Disconnect electrical POWER connector at valve and remove valve from vacuum system.
Take care to the sealing surface!
4. Loosen clamp coupling screw
Allen Wrench:
elastic coupling
2 mm
steel coupling
2.5 mm
5. Unfasten and remove the 3 fastening
screws
Allen Wrench
3mm