BUCHI DuMaster D-480 - Manual (Page 211)

Operation Manual D-480 ©BÜCH Labortechnik AG
8 - Maintaining the instrument 211
Process
This maintenance work is always carried out together with the maintenance of the Ni flap. The steps
in Removing and cleaning the Ni flap (on page 206) are presumed for maintenance and removal of
the O
2
lance.
Safety instruction
Strictly observe the safety instruction "Hot instrument parts" under Warning notes during operation
(on page 24).
Removing the O
2
lance
Proceed as follows:
 Place the combustion tube connection upside-down on the tube rack.
 Carefully pull the O
2
lance with circular rotations out of the combustion tube connection.
Cleaning the O
2
lance
Proceed as follows:
 Wipe any soot with a dry cloth.
 Replace the seal made of sealing hose.
 Check the lance for patency.