Buchi KjelSampler K-377 Manual do Utilizador Página 135

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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.
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