Preventive Maintenance
Pump Rebuilding
Thermo Electron Corporation Model 42i Low Source Instruction Manual 5-5
3. Re-install the filters and fan guards.
Pump Rebuilding Use the following procedure to rebuild the pump (Figure 5-2). To replace
the pump. See “Pump Replacement” in the “Servicing” chapter.
Equipment Required:
Pump Repair Kit
Allen Wrench, 3 mm
Wrench, 9/16-inch
Needlenose Pliers
1. Turn instrument off, unplug the power cord, and remove the cover.
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. For more information
about appropriate safety precautions, see the “Servicing” chapter.
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