Servicing
PMT Cooler and Reaction Chamber Assembly Replacement
Thermo Electron Corporation Model 42i Low Source Instruction Manual 7-13
3. Pull the power connectors off the fan.
4. Remove the four fan mounting screws and remove the fan.
5. Install a new fan following the previous steps in reverse.
Figure 7-7. Replacing a Fan
PMT Cooler and
Reaction Chamber
Assembly
Replacement
Use the following procedure to replace the PMT cooler and reaction
chamber assembly (see Figure 7-8).
Equipment Required:
PMT cooler
Wrench, 7/16-inch
Wrench, 9/16-inch
Nut driver, 1/4-inch
Philips screwdriver
Wire cutters
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.