Maintenance
33
• Remove the 4 screws (8) which hold the assembly (6/7) on the
furnace.
• Lift the assembly (6/7) in straight vertical direction.
• Unscrew the four screws and nuts which hold the parts (6) and (7)
together.
• Replace the lance (11)
• Replace the O-ring (10)
• Replace the O-ring (9)
• Do reassembling in reverse order
4.8 Heating elements replacing
Mortal danger from electric shock
Exposed power contacts - High Voltage
- An electric shock can cause injuries in the form of burns and
cardiac arrhythmia, respiratory arrest or cardiac arrest.
• Disconnect the mains power plug before opening the
analyzer’s cabinet.
Fig. 9: Operating procedure for replacement of heating elements
• Remove the combustion tube. See chapter “Combustion tube
replacing”
• Remove the two screws (1) fixing the right hand side panel (2) of the
analyzer’s cabinet.
• Slightly tilt the panel to the right and carefully lift it. The loader should
not be shifted otherwise it will lose its mechanical adjustment.
• Unscrew the two screws (3) and remove the heat shield (4).
• Unscrew the four nuts (5) and remove the panel (6).
• Loose the four nuts (7) and remove the two double clamps (8).
• Remove the four ceramic spacers (9).
• Apply the panel (6) in its original place and manually fix it with two
nuts (5) diagonally to prevent it from falling down.
• Unscrew the four screws (10) and remove the panel (11).
• Remove the two nuts (12)
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