Abacus junior 5
User’s Manual
41
7.1.6.1 Peristaltic pump maintenance
The pump installed in the instrument is maintenance free. However, would you
experience leakage from the pump, or get vacuum error displayed, you may replace
the tube used.
1. Open the rear door.
2. Open the pump lock by turning the plastic holders to release the pump housing
plastics (see figure 14.) Snap out the pump tube from the housing.
Figure 11. Peristaltic pump with open lock
3. Change the tube into the housing plastics, then guide in both ends into the lock.
4. Turn the lock back to secure the tube in place. Match colors, and check
connections for proper placement. Close and lock side door.
After replacing tube the pump should look like the figure below (original state).
Figure 12. Peristaltic pump after replacement of tube
Pump housing
plastics
Pump lock
Pump tube
Tube holder clip
Tube holder clip
