BUCHI DuMaster D-480 - Manual (Page 199)

Operation Manual D-480 ©BÜCH Labortechnik AG
8 - Maintaining the instrument 199
Furnace area
The following picture shows the details of the furnace area:
Legend:
1 Ground-in clamp
3 Ball valve fastening
Phase 3: Removing the ball valve
Proceed as follows:
 Open the ground-in ball-and-socket joints of the tube (1) leading to the ball valve.
 Push the right side door open from inside (magnetic lock).
 From the right, unscrew the ball valve (3) locking screws using an 8mm open jawed wrench.
 Pull the ball valve out of the instrument to the front.
Dismantled ball valve
The following picture shows the disassembled ball valve:
Legend:
1 Wheel flange of the half shells
2 Top and bottom half shell
3 Ball
4 Screws
5 Drive bearing
6 Holder plate
7 O-ring
8 Bayonet catch