Chapter 4: Routine Maintenance
4-10
Surgivet
®
Universal CDS 9000 Operation Manual
Minor Repairs
Needle Valve Adjustment
Supplies Needed:
1/16 inch Allen Wrench
•
NOTE! Flowmeter shown disassembled from the machine for clarity. It is not necessary to disassemble
the Flowmeter from the machine to perform this operation.
With needle valve still attached to the flowmeter, remove the top 2 set screws using a 1/16 inch Allen
1.
Wrench. (See Figure 4-16)
Loosen the lower 2 set screws using the same 1/16 inch Allen Wrench.
2.
Pull off knob. (See Figure 4-17)
3.
Turn on oxygen supply to anesthesia machine.
4.
First try using your fingers to adjust metal rod to turn off flow in flowmeter. (See Figure 4-18) If this cannot
5.
be turned with fingers, use pliers taking care not to damage rod. Do not over tighten as you may damage
needle valve.
Once ball is resting on the stop, put knob back onto needle valve. Push on fully and turn knob until it
6.
contacts the stopper. (See Figure 4-19)
Figure 4-19: Put Knob Back Onto Needle Valve
Figure 4-16: Loosen Set Screws in Knob
Figure 4-17: Pull Off Knob
Figure 4-18: Adjust Metal Rod
Stoppers
