Thermo Electron Corporation Model 42i Low Source Instruction Manual 5-1
Chapter 5 Preventive Maintenance
This chapter describes the periodic maintenance procedures that should be
performed on the instrument to ensure proper operation. Since usage and
environmental conditions vary greatly, you should inspect the components
frequently until an appropriate maintenance schedule is determined.
This chapter includes the following maintenance information and
replacement procedures:
• “Safety Precautions” on page 5-1
• “Replacement Parts” on page 5-2
• “Cleaning the Outside Case” on page 5-2
• “Ozonator Air Feed Drying Column Replacement” on page 5-2
• “Capillaries Inspection and Replacement” on page 5-2
• “Thermoelectric Cooler Fins Inspection and Cleaning” on page 5-4
• “Fan Filters Inspection and Cleaning” on page 5-4
• “Pump Rebuilding” on page 5-5
Safety Precautions Read the safety precautions before beginning any procedures in this chapter.
WARNING If the equipment is operated in a manner not specified by the
manufacturer, the protection provided by the equipment may be impaired.
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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