6875D Freezer/Mill
1300-87052-1A, REV 1
SPEX SamplePrep LLC
Page 31 of 36
8.0 MAINTENANCE
The 6875D Freezer/Mill has been designed to provide trouble-free operation over a long period
of time. To assure proper performance it is very important to keep the unit clean. When the
Freezer/Mill is at room temperature, any spilled powders or liquids should be wiped up
immediately. The internal tub should be wiped clean with a damp cotton cloth after every use.
This should prevent the buildup of any powders, mold/mildew, or other residue over the life of
the unit. If any samples, powder materials, or liquids are spilled inside the unit during a sample
run, wait until Freezer/Mill is finished for the day, the liquid nitrogen has evaporated, and the
mill has warmed up to room temperature before attempting to clean it. Once the unit has
attained room temperature, wipe down the unit as indicated previously. After every period of
use, the mill will become wet with condensation due to the Freezer/Mill picking up moisture
from air when it is cold.
To maintain the exterior of the unit, first disconnect the Freezer/Mill from its electrical source.
Then lightly spray with a mild window cleaner or similar product and wipe unit down. If the
6875D Freezer/Mill requires service, please call SPEX SamplePrep Customer Service for
assistance.
