
OPERATION
Series 140
16/43
Edition 14.07.2020
875067EA
5
Operation
WARNING
Unqualified personnel
Inappropriate handling may cause serious injury or property damage.
Only qualified personnel are allowed to carry out the described work.
WARNING
Movable parts
Human body parts may get jammed and severely injured.
Do not operate before product is installed completely into the vacuum system.
5.1
Normal operation
5.1.1
Manually actuated
Valve is opened and closed manually by a lever or hand wheel.
5.1.1.1
Lever actuated
1. Pull out and hold locking bolt.
2. To open valve, rotate lever counter-clockwise.
3. To close valve, rotate lever clockwise.
The lever is fixed in position “open” and “closed” by the locking bolt.
5.1.1.2
Hand wheel actuated
1. To open valve, rotate hand wheel counter-clockwise.
2. To close valve, rotate hand wheel clockwise
The actual valve position is indicated at the position indicator.