HTC 80 iD, Manual

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HTC 80 iD Maintenance
1.1 37
5.4.9 Check the side duct fan
• When required, vacuum clean any dust from visible parts of the side duct fan.
• Also listen to see if there is any jarring sound coming from the side duct fan.
5.5 Every six months (or 600 hours)
5.5.1 Check the fastening of the bolts
• Check the fastening of all bolts and screws. Tighten if required.
5.6 Every year
5.6.1 Replace sock filters
Warning!
The dust that is sucked up is harmful if inhaled. Follow local regulations and
use breathing protection.
The sock filter must be replaced annually; however, if the daily inspection of the sock
filter shows that the filter should be replaced, this should be done according to Servicing
the sock filter, page
40 .
5.6.2 Replace HEPA filters
Warning!
The dust that is sucked up is harmful if inhaled. Follow local regulations and
use breathing protection.
The HEPA filters must be changed once a year, but if the daily inspection shows that the
HEPA filters needs changing, the following points must be done after steps 1 - 5 in
Check HEPA filters, page
33 .
1. Discard the defective HEPA filters.
2. Install the new HEPA filters. Take care that it is installed centrally in the HEPA
filter holder and according to the arrow so the right side of the filters are turned
upwards in the dust extractor.
3. Secure the HEPA filters, with the HEPA filter holder and both of its quick
fasteners, to the lower filter holder's hooks.