Eppendorf I-26R Large Stackable Incubator Shakers - Manual (Page 21)

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New Brunswick Operating Manual
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.
5.8 Stacking a Third I-26/26R
CAUTION!
Be sure to use the 10.2 cm (4 in) base only when you stack 3 shakers.
ALERT!
When stacking 3 shakers, it is imperative that all shaker loads be balanced.
These shakers operate best at maximum speed with a load of 15.5 kg
 1.4
kg (34 lbs,  3 lbs), which includes all platforms, clamps, and filled
glassware. (See Load & Speed graphs in Section 5.8.1 for more information)
To stack a third shaker, repeat the procedures in sections 5.6 and 5.7 to install the
stacking kit, stack the shaker, and level the entire assembly.
5.8.1 Load and Speed Graphs
Figures 9a and 9b, show the maximum recommended speed for unstacked and
stacked shakers, according to load.