12-42
Maintenance
Temperature Thermistor
Cable Connector
Replacing the Shaft Seal Assembly (p/n 9981-143)
The shaft seal assembly has a recommended replacement cycle of three years;
replacement is required when the arm mechanism squeals or shudders during
motion.
Follow these steps to replace the chamber arm shaft seal assembly:
1. Press the OPEN/CLOSE button twice in succession to move the chamber to its
“Park” position.
2. Remove the two nuts on the underside of the shaft that hold the arm/bowl
assembly, using a 3/8” wrench or socket.
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