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Remove the reagent tubing from one end of the pump tube fitting and pull the pump tube from
behind the pump rollers.
Replace the pump tube with a new one and reassemble in reverse order. Repeat for the other pump tube.
MAINTENANCE
TUBING REPLACEMENT
The remaining tubing in the analyzers should be replaced every two months.
When installing new tubing it is helpful to dip them in hot water before making the connections.
It is also recommended that one tube at a time is removed and replaced.
Note: DPD reagent tubing may darken before the scheduled replacement time, but this will
not affect the instruments performance.