Buchi DuMaster D-480, Руководство по эксплуатации

Страница: 204 / 354

Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG
8 - Maintaining the instrument 204

and that the cylinder pin snaps into the blind hole bore of the ball.

Insert the top half shell (2) and observe the recess for the drive bearing.

Screw the holder plate (7) onto the ball valve.

Also grease the surface of the wheel flange facing the half shells. Insert the wheel flange into the
half shells (1) and tighten it by means of the hook wrench (to the stop).

Turn the ball at the drive shaft twice for a better dispersion of the grease.

Position the ball in such a way that the ball valve is open.

Remove excessive grease with a cloth by pulling the cloth through the bore.
Step 3: Installing the ball valve
For installation of the ball valve proceed in reversed sequence as it is described for its removal.
Furnace area
The following picture shows the details of the furnace area:
Legend:
1 Bayonet catch
2 Handle
3 Connection Reductor
4 Ball valve fastening
5 Ground-in clamp
6 O
2
supply tube
7 Post combustion tube connection
Phase 4: Bringing the instrument to a "ready to measure" state
Proceed as follows:

Close the right side door (magnetic lock).

Replace the carousel.

Push the furnace back:

Lift the bayonet catch (1) slightly so as not to damage the seal on the combustion tube
connection.

Close the bayonet catch by turning the bayonet catch handle (2) to the left.

Close the ground-in clamp (5,3) on the Reductor again.

Connect the O
2
supply tube with a ground-in clamp (5).

Close the front door.

Switch on the furnace by means
System > Furnace
.

Wait for the tubes to reach the correct temperature.