BUCHI KjelSampler K-377 - Manual (Page 135)

7 Maintenance
135 K-375/376/377 Operation Manual, Version B
1
1
• Remove the two screws a on the rear
side of the instrument. The position of
the sodium hydroxide pump is marked
on the housing with the imprinting
“NaOH”.
3
3
2
1
• Open the service door.
• The sodium hydroxide pump is the
lowermost of the three pumps situated
on the left side.
• Disconnect the two plug connectors
a. (Note for reassembly: The upper
one connects the green cable, the
lower one the brown cable!)
• Disconnect the tube on the front side b.
• Unscrew the two screws c from the
front panel and take the front panel
away. The pump becomes loose now
and can be replaced.
• Reassemble in reversed order.