23
New Brunswick Scientific Co., Inc.
User’s Guide
4. As indicated in the above drawing, secure the bottom of the upper I-26/26R to the
side stacking rails using the six ½-13 x 1-inch screws, lock washers, and washers
provided. Also secure the upper unit to the stop rail using three ¼-20 x 5/8-inch hex
head screws, lock washers and washers.
5. As before, make sure the shakers are level; add metal shims under the base if needed.
6. Fully load the shaker and do a test run at normal speed. Make additional leveling
adjustments if necessary.
4.8
Stacking a Third I-26/26R
CAUTION!
Be sure to use the 4-inch base only when you stack 3 shakers.
CAUTION!
When stacking 3 shakers, it is imperative that all shaker loads be balanced.
These shakers operate best at maximum speed (see the Load & Speed
graphs in Section 4.8.1 for more information) with a load of 34 (
±
3) lbs/
15.5 (
±
1.4) kg, which includes all platforms, clamps, and filled glassware.
To stack a third shaker, repeat the procedures in sections 4.6 and 4.7 above to install the
stacking kit, stack the shaker, and level the entire assembly.
4.8.1
Load and Speed Graphs
Figures 9a and 9b, on the following page, show the maximum recommended
speed for unstacked and stacked shakers, according to load.
