9.0 Maintenance
9.1 Replacing the Reagent Tubing
(Kit #28162S)
To replace the reagent tubing on the CSM instrument:
1. Disconnect tubing from reagent bag.
2. Loosen the thumbscrew on the reagent pump.
3. Remove tubing from slot on outside of reagent pump and pump
balancing loops.
4. Remove Velcro strap holding reagent tubing in place on top of pump
bracket.
If replacing silver indicator reagent tubing (yellow), continue on to step 5.
If replacing Green, Red and Blue reagent tubing, skip to step 8.
5. Using a screwdriver, loosen the screw on the optical assembly that
holds the reagent injectors in place.
6. Rotate the check valve retainer 90 degrees and disconnect the
injector from the optical assembly.
7. Remove two screws that hold solenoid bracket to the optical
assembly bracket.
8. Rotate the check valve retainer 90° and disconnect the injector from
the optical assembly.
9. Ensure duckbill was attached to injector upon removal. If not,
remove duckbill from connection on optical assembly.
10. Place new injector with duck bill attached into the optical assembly.
11. Rotate the check valve retainer 90 ° and tighten screw to lock
injector in place in the optical assembly.
If replacing silver indicator reagent tubing (yellow), continue on to step 13.
If replacing Green, Red and Blue reagent tubing, skip to step 16.
12. Insert short piece of new tubing into outlet fitting on solenoid valve.
Insert other end into inlet fitting into optical injector.
13. Secure solenoid valve to bracket with 2 screws removed in step 6.
14. Insert end of new tubing into inlet of the solenoid valve.
15. Reuse Velcro strap to secure the reagent tubing check valves to the
top of the pump bracket.
16. Guide tubing back into slot on outside of reagent pump and guide
pump balancing loop into back slot of pump.
17. Tighten thumbscrew on the reagent pump.
18. Reattach tubing to reagent bag.
Replacing the Air Pump Tubing (Kit #28162S)
To replace the air pump tubing on the CSM instrument:
1. Loosen screw towards back right side of optical assembly to loosen
the injector of the air pump tubing.
2. Rotate the check valve retainer 90° and disconnect the injector from
the optical assembly. Be sure duckbill is still attached to injector.
3. Remove black fitting from air pump.
4. Insert new tubing into air pump.
5. Insert other end of tubing with injector and duckbill into the optical
assembly.
6. Rotate the check valve retainer 90° and tighten screw to lock
injector in place in the optical assembly.
Loosen screw on
optical assembly
Remove check valve
from air pump
Duckbill (on injector
side of tubing only)
Loosen thumb
screw
Remove
tubing from
slot
Remove
Velcro strap
4
2
3
Press quick release
collar on inlet/outlet
7
Rotate check
valve retainer
Loosen screw
Disconnect
injector
9
9
8
10
1
3
13
