31
7 Routine Maintenance
Due to ambient temperature, relative humidity, windblown dust and vibrations,
components of PVS will get aging. It is necessary to do the routine maintenance
work periodically on the device.
Only qualified electricians can do the maintenance work described in
this chapter.
After the maintenance work finished, be sure not to leave screws,
washers and the like in the PVS. The device can be damaged
！
Only work on the PVS when it is switched off and voltage free. Fuses are
non-resetting once they are broken. After many times replacement, the fuse
holders will get loose. Users should fasten the fuse holders periodically to
ensure valid connections.
7.1 Replace the Fuse
Once the fuse is blown, the damage is irrecoverable. Replace the fuse
by qualified operators in time.
Replace the fuse with new one with the same model and the same
grade.
Method to replace fuse:
Содержание PVS-12MH-DB
Страница 2: ......
