8000D Mixer/Mill
Page 10 of 21 SPEX CertiPrep 8.21.03
SN and Higher
6. MAINTENANCE
The 8000D Mixer/Mill has been designed to provide trouble-free operation over a long period of
time. To assure proper performance, perhaps an important factor is overall cleanliness. Any spilled
powders or liquids should be wiped up immediately. This should minimize the buildup of any
powders, mold/mildew, or unsightly gunk.
To maintain the exterior of the unit, first disconnect the 8000D Mixer/Mill, then spray it with a mild
window cleaner or similar product, and wipe it down. REMINDER: unplug the Mixer/Mill before
any cleanup or maintenance work.
The threads of the clamp screw should be kept clean. The foam pads in the clamp should be
replaced when damaged, worn, or missing.
If the drive belt becomes loose, tighten it by moving the motor back: loosen the motor mounting
bolts, move the motor, and tighten the bolts. If the drive belt breaks or becomes heavily worn,
replace it. A properly tensioned drive belt can be depressed about ½” midway between the
sprockets.
The flywheel and motor sprockets should be checked from time to time to make sure that they
are tight on their shafts; if either sprocket loosens it must be realigned with the other, and the set
screws tightened.
The sealed ball bearings in the clamp and pillow block assemblies are lubricated for life and
require no maintenance. The shaft bearings of the motor are lubricated for ten years of
intermittent use or one year of heavy use.
The clamp retaining spring assembly includes two open ball-and-socket joints that are lubricated
with heavy-duty automotive-type lithium grease. If these bearings dry out they should be taken
apart and re-greased.
The 8000D Mixer/Mill is intended for intermittent use with running times that are typically 5 to
20 minutes long. Under those conditions it should run for many years without maintenance other
than that described above. Prolonged periods (over 100 min.) of continuous running, as when
the mill is used for mechanical alloying, require extra maintenance
The 8000D Mixer/Mill is warranted against defects of materials and workmanship for a period of
one year from date of shipment. Extreme uses of the mill, such as mechanical alloying, may
modify or void the warranty. Contact us for further information about operating your mill under
unusual circumstances.
Tungsten carbide, ceramic, and agate vials cannot be warranted against breakage.
If you have any questions about the operation and maintenance of your 8000D Mixer/Mill,
please contact our specialists by phone at 1-800 LAB-SPEX (522-7739) or 732-549-7144, or by
e-mail at sampleprep@spexcsp.com
