Platform Vibration Adjustment; Handle Adjustment - Thermo Scientific SHKE8000 Series Maintenance Manual

Platform Vibration
Adjustment

Handle Adjustment

Thermo Scientific
1. Make sure the platform handle is in the vertical position and the door
is closed. The unit should also be leveled and tuned.
2. Turn the unit on and set the RPM to 300. Allow the shaker to run for
several minutes. If the vibration is normal, return the unit to service. If
not, continue to Step 3.
3. Remove the platform from the chamber. At the back
of the platform are two tapered pins (Figure 4-10).
4. Loosen the nut closest to the platform. Turn the
center nut slightly to extend the pin away from the
platform. A quarter-turn or less is a good first test.
5. While holding the center nut,
tighten the nut closest to the
platform back against the pin
mounting block. Install the
platform into the chamber. Note
pin locators (Figure 4-11) on quick-
release platform.
6. Turn the unit on and set the RPM to 300. Allow the shaker to run for
several minutes. If the vibration is normal, return the unit to service. If
not, repeat Step 4.
1. Grasp the platform handle and pull up on the inner release bar to
move the handle to a horizontal (down) position.
2. Remove the screws from the sides of
the handle, as indicated in Figure 4-
12. Remove the handle.
3. Turn the adjustment screws just one-
half turn clockwise to increase the
clamping force, or one-half turn
counterclockwise to reduce the clamping force.
4. Reassemble the handle and install the side screws. Slide the platform
into the shaker chamber. Place the handle into a vertical position.
5. Close the door and run the unit empty, at 300 RPM. If there is undue
vibration noise, repeat the steps above. If not, return the unit to
service.
Figure 4-10. Pin
Figure 4-11. Pin Locators
Figure 4-12. Adjustment
Model SHKE8000 Series Shakers
Section 4
Service
4-7