Labconco FreeZone Bulk Tray Dryer 78060 Series User Manual
Page 32
Chapter 7: Troubleshooting
Product Service 1-800-522-7658
28
4. If bubbling was observed on the chamber surface, the chamber must be
replaced. This type of leak cannot be successfully repaired. The leading
cause of a chamber surface leak is corrosive residue left in the chamber
after use.
This test verifies that the vacuum leak is in the Bulk Tray Dryer.
1. Remove the Bulk Tray Dryer.
2. Position a flat gasket over the
3.0 inch diameter vacuum port
and turn a large freeze dry flask
upside down to cover the
connection port.
3. Start the freeze dryer and
observe the vacuum indication.
If the vacuum indication is
good, then the problem is in the
Bulk Tray Dryer and you
should proceed to Section IV,
Bulk Tray Dryer.
Collector Coil
O Ring and Vacuum Grease
Nut