Hach-Lange Sigma SD900 Portable - Manual (Page 61)

59
Maintenance
Installation procedure:
1. Connect one end of the tubing to the liquid sensor fitting. Press
the tubing into the pump tube guide ( Figure 22 ).
2. Press the tubing into the upper pump tube track. Make sure
that the alignment dot is in line with the upper pump tube track
as shown in
Figure 22 .
3. Hold the tubing with one hand while rotating the pump rotor to
guide the tubing around the rotor ( Figure 22 ). The guide pins
will push the tubing into place.
4. Press the tubing into the lower pump tube track. Make sure that
the alignment dot is in line with the lower pump tube track as
shown in
Figure 22 .
5. Close and secure the pump cover with the thumbscrew.
6. Connect the open tube end to the tube fitting on the sampler
( Figure 23 ).
Figure 22 Pump tubing installation
1 Pump tube guide 5 Rotor
2 Pump tube track (upper) 6 Pump tube track (lower)
3 Guide pin 7 Connection to liquid sensor
4 Alignment dot