Thermo Electron Corporation Model 48i 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 includes the sample pump, solenoid valves, and IR source
which have a limited life.
Other operations such as cleaning the optics and checking the calibration of
the pressure and temperature transducers should be performed on a regular
basis.
This chapter includes the following maintenance information and
replacement procedures:
• “Replacement Parts” on page 5-1
• “Cleaning the Outside Case” on page 5-2
• “Cleaning the Optics” on page 5-2
• “IR Source Replacement” on page 5-3
• “Fan Filter Inspection and Cleaning” on page 5-3
• “Leak Test and Pump Check Out” on page 5-4
• “Pump Rebuilding” on page 5-5
Replacement Parts See the “Servicing” chapter for a list of replacement parts and the associated
replacement procedures.
WARNING If the equipment is operated in a manner not specified by the
manufacturer, the protection provided by the equipment may be impaired.
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