Cardinal Health IVAC 571, Technical & Service Manual

Page: 35 / 104

IVAC® Volumetric Pump (Models 571 & 572) 35/104 1000SM00018 Issue 2
Routine Maintenance
Inspecting and Cleaning the Mechanism
Open the door and inspect/clean the exposed cam followers, the pressure plate and tubing pincher.

Clean any surfaces where fluid spill residue is noted, referring to the cleaning instructions above for appropriate
cleaning method.

Check the Cam Followers for cleanliness and erosion:
Shine a flashlight into the cam followers. The followers should be clean and shiny. A dull appearance may indicate
erosion. If the followers appear to be dirty or are dull, clean per the following procedure.

Clean the Cam Followers:
Clean the surface of the cam followers using a cotton-tipped applicator dampened in a solution of warm soapy water
and a mild non-abrasive detergent (such as commercially available dish cleaning liquid). Rinse the cam followers with
a soft cloth or cotton-tipped applicator dampened in water then allow the cam followers to dry.

Check the Cam Followers for erosion after cleaning:
If, after cleaning the cam followers, they are still dull, replace the mechanism assembly per replacement instructions in
Chapter 6 of this manual, or return the pump to the manufacturer.
 Verify that the Pressure Plate is not bent, cracked or deformed.

Verify that the Tubing Pincher opens and closes freely (without sticking).
If the pincher is sticking or is hard to actuate, remove the pincher cover and inspect for contamination or inadequate
lubrication. Remove assembly and clean if necessary. See Chapter 6, 'Spare Parts Replacement Procedures' for pincher
removal instructions.
If required, apply a coating of silicone lubricant to cavity in front panel. Refit the pincher, pincher spring and pincher
cover following the instructions in Chapter 6.
Flow Sensor Check (where flow sensor is in use)
 Check that labels are flat, legible and fully adhered. Replace as necessary.

Check that lenses are clean and clear and show no sign of cracks.
 Inspect the body of the flow sensor for damage.

Check that the sliding action of the flow sensor operates smoothly.

Inspect the cord and plug for damage.
Physical Inspection and Clean
(continued)
Clean the flow sensor by wiping over with a cloth, lightly dampened with warm water and a
standard disinfectant/detergent solution. Ensure the connector does not get wet. Dry flow sensor
before use.
To aid cleaning of flow sensors which have been heavily soiled, contaminated or if the handles
operation is not free, the flow sensor may be immersed and soaked in clean soapy water.
Activating the spring mechanism of the sensor whilst immersed will assist in cleaning the inside of
the mechanism. After cleaning, the sensor should be allowed to dry fully prior to use.
CAUTION: the plug of the sensor should not be immersed as damage will occur.