Gtr 8000 Base Radio Maintenance; Fan Grill Cleaning Instructions; Aligning The Internal Frequency Reference Oscillator - Motorola GTR 8000 Manual

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GTR 8000 Base Radio Maintenance

This chapter describes periodic maintenance procedures relating to the GTR 8000 Base Radio.

6.1 Fan Grill Cleaning Instructions

If the station equipment is installed in a dusty environment, precautions must be taken to filter the air used
for forced cooling of the station. Excessive dust drawn across and into the device circuit modules by the
cooling fans can adversely affect heat dissipation and circuit operation. In such installation, be sure to
clean or replace external filtering devices periodically.
If dust has accumulated on the fan grills, cleaning of the fan grills is recommended. When cleaning, care should be
taken to prevent dust from being pulled into the modules. It is recommended that a damp cloth be used to wipe the
front of the fan grills. When removing the power supply, make sure that the unit is turned off before proceeding.
6.2 Aligning the Internal Frequency Reference
Oscillator
The base radio or receiver must be turned on for at least one week before the internal frequency reference
oscillator is aligned.
See Base Radio Service Help > Service Screens > Alignment Screens in the CSS Online Help for the alignment
procedures.
6871022P86-A - November 2012 6-1