Pump Problems - PerkinElmer AVIO 500 Customer Hardware And Service Manual

Troubleshooting
332

Pump Problems

Table 6-18.
Problem
Pump rollers stick
Liquid is not
flowing freely
Pump tubing is
stretched on one end
and slack on the
other end
Pump makes
excessive noise
Pump Problems
Possible Cause(s)
A spill may have occurred or
the pump head may be worn
and may need to be replaced.
The tension on the pump
tubing is too high or low.
Tubing may not be installed
correctly in the channel.
Tubing may be worn.
The tension on the pump
tubing is too tight.
Rollers may be stuck.
Tubing may be worn.
A mechanical problem may
have occurred.
Corrective Action
Clean the pump head, or replace if
necessary.
Use the adjustment screw to adjust the
tension. See Chapter 5, Maintenance
for more information.
Reinstall tubing.
Replace tubing.
Loosen the adjustment screw.
Check the rollers in the pump head to
see if they roll freely.
Replace tubing.
Call a PerkinElmer Service
Representative.