Thermo Scientific 410i Instruction Manual page 187

Replacement
Thermo Fisher Scientific
4. Insert the 5/64-inch Allen wrench through the access hole in the
bottom of the motor plate, loosen the set screw holding the filter wheel
to the motor shaft, and carefully pry the filter wheel off the motor shaft
(Figure
5. Install new filter wheel by following the previous steps in reverse. Make
sure that the set screw seats on the flat of the motor shaft.
6. After the filter wheel is installed, spin the wheel and observe that it runs
true on the motor shaft.
7. Let the instrument sample zero air for about 90 minutes.
8. From the Main Menu, choose Service > Initial S/R Ratio.
The Initial S/R Ratio screen appears.
Note If Service Mode is not displayed, refer to
Mode" on page 7-4, then return to the beginning of this step.
9. At the Initial S/R Ratio screen, press
ratio to the value of the current ratio and press to store the value. The
initial S/R ratio should be between 1.800 and 1.20.
10. Calibrate the instrument. Refer to the "Calibration" chapter in this
manual.
Motor
Use the following procedure to replace the motor. Refer to
Figure 7–8
Equipment Required:
Motor
Allen wrenches, 5/32-inch and 5/64-inch
Flatblade screwdriver
Equipment Damage Some internal components can be damaged by small
amounts of static electricity. A properly grounded antistatic wrist strap
must be worn while handling any internal component.
7–6).
as appropriate.
Servicing
Motor Replacement
"Accessing the Service
▲
to select set the initial S/R
Figure 7–7
▲
Model 410i Instruction Manual
or
7-15