VAT 61228-KAGG-0002 - Replacement of Shaft Feedthrough Seals and Valve Cleaning

Series 612
MAINTENANCE
601894EA
Edition 2013-04-12
63/83
7.2.1 Replacement of shaft feedthrough seals and valve cleaning
7.2.1.1 Needed tools
Allen Wrench 2mm
Allen Wrench 3mm
feeler gauge
Note: Sample pictures
Description
Required tool
Make sure that the valve is in closed position
1.
Vent vacuum system, disconnect electrical connections and remove valve from vacuum
system. If you only replace control and actuating unit, the valve can remain in the
system.
Take care not to damage sealing surface! Do not move the plate by hands when
control an actuating unit is installed.
Depending on
flange screws
2. Unfasten clamp coupling
Allen Wrench
2mm
3.
Unfasten the 2 connection bolts and separate both
parts.
Valve size DN 160 (6”) and bigger require a
shortened wrench. For ordering number refer to
«Spare parts and accessories».
Allen Wrench
3mm
4. Unfasten screws and remove plate from shaft.
Allen Wrench
3mm
12 mm