NEC 120Mf User Manual

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Chapter 5 
Preventive Maintenance 
 
 
PERIODIC MAINTENANCE 
 
The following items are to be periodically maintained every 6 months. 
 
Frequency 
No. Check 
Item 
Site
Regular Daily 
Remarks 
Cleaning of FDD head 
 
 
 
 
Check fan operation 
 
 
 
Clean it at the same time. 
Check T&D operation 
 
 
 
 
Check date and time of 
internal clock 
 
 
 
 
Check UPS battery 
 
 
 
 
Cleaning of CD-ROM head 
 
 
 
Clean options such as 
DAT. 
7 Check 
switches 
 
 
 
Check smoothness. 
 
* If any option is added, follow the instructions for that option. 
 
MAINTENANCE BY USER 
 
Request the user for maintenance of the following items. 
 
No. Item 
Frequency Remarks 
Confirm date and time of the 
internal clock 
At restart of the system 
after holidays. 
 
Check test programs 
At site adjustment 
At error occurrence 
At regular check 
 
Execution of test program at 
failure, and collection of error 
data 
At error occurrence 
 
 
Cleaning of head and running 
section of CD-ROM and DAT 
Once a day 
According to the 
instruction manual