Buchi DuMaster D-480, Operation Manual

Page: 192 / 354

Operating instructions DuMaster D-480 ©BÜCHI Labortechnik AG
8 - Maintaining the instrument 192
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 2: Refill the Regainer
Proceed as follows:

Open the front door.

Unscrew the combustion tube connector. To do so, turn the bayonet catch handle (2) slowly to
the right.

Remove the ground-in clamp (5) on the reductor (3).

Remove the O
2
supply tube (6) by opening the two ground-in clamps (5).

Remove the ground-in clamp (5) on the post combustion tube (7).

Top view furnace
The following picture shows a top view of the furnace pulled out:
Legend:
1 Post combustion tube plug
2 Post combustion tube
3 Combustion tube connection
4 Combustion tube
5 Plug of Reductor
6 Reductor
Phase 2: Refill the Regainer
Proceed as follows:

Press the post combustion tube plug (1) and the combustion tube connection (3) down lightly and
pull the furnace out of the instrument to the front.

Pull the combustion tube connection (1) out of the combustion tube (2) with careful jiggling
motions.

Place the post combustion tube plug (1) on the tube rack.