BUCHI DuMaster D-480 - Manual (Page 227)

Operation Manual D-480 ©BÜCH Labortechnik AG
8 - Maintaining the instrument 227
Removing the reaction tubes from the furnace
Process
The section is divided into the following phases:
 Preparing the instrument, gas pressure
 Removing reaction tubes
Safety instruction
Strictly observe the safety instruction "Removing reaction tubes" under Warning notes during
operation (on page 24).
Requirements
Before starting work, the following requirements must be met:
 Keep a tube rack ready to hold hot components.
Phase 1, Preparing the instrument, gas pressure
In order to be able to prepare the instrument for maintenance works follow the instructions
"Preparing the instrument: Gas pressure" in Preparing and following up maintenance work (on
page 171).
Furnace area
The following picture shows the details of the furnace area:
Legend:
1 Handle
2 Bayonet catch
3 Reduction tube connection
4 Post combustion tube connection
Phase 2: Removing reaction tubes
Proceed as follows:
 Open the front door.
 Unscrew the combustion tube connector. To do so, turn the bayonet catch handle (1) to the right.
 Remove the ground-in clamp on the reduction tube (3).