Download Model 43i - User Manual

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
●
“Safety Precautions” on page 5-1
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“Replacement Parts” on page 5-2
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“Cleaning the Outside Case” on page 5-2
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“Visual Inspection and Cleaning” on page 5-2
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“Cleaning the Mirrors” on page 5-2
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“Fan Filter Inspection and Cleaning on page 5-5
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“Sample Particulate Filter Inspection” on page 5-5
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“Lamp Voltage Check” on page 5-6
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“Leak Test” on page on page 5-6
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“Pump Rebuilding” on page 5-7
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 ground antistatic wrist strap must
be worn while handling any internal component (Figure 7–1). If an
antistatic wrist strap is not available, be sure to touch the instrument chassis
before touching any internal components. When the instrument is
unplugged, the chassis is not at earth ground. ▲
Thermo Fisher Scientific
Model 43i Instruction Manual
5-1