User's Manual

7. Maintenance
Page 58
MF0123A1F_FCC_uc Manual for PSR 700/800 MHz
7.3. Cleaning the Heat Sink
 Note: Read and observe chapter section 7.1 before starting with the procedure.
Then, proceed as follows:
Checking the cleanliness of the heat sink is recommended at appropriate intervals
depending on the degree of dust and dirt at the installation site. If necessary, any dusty
or dirty areas / parts should be cleaned as explained in the following:
Read and observe chapter 1.2 Health and Safety as well as the instructions in section
7.1 General before starting with the cleaning.
Disconnect the mains cable from the POWER connector (see figure 4-1).
Caution: The unit reaches high temperature in operation. Risk of burns by hot
surface. Do not touch the unit before it has sufficiently cooled down.
Use a soft brush to remove dust and dirt from the fins of the heat sink.
After cleaning reconnect power cable.