HTC GL 40 D, Руководство пользователя, Страница: 33 / 44

HTC GL 40 D Maintenance and repairs
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5.5 Every month
5.5.1 Check the condition of the hoses.
• Make sure that the hoses are undamaged and free from persistent dirt. Replace
the hoses, if necessary.
5.6 Every six months (or 600 hours)
5.6.1 Check the fastening of the bolts
• Check the fastening of all bolts and screws. Tighten if required.
5.7 Every year
5.7.1 Replace the absolute filter
Warning!
The dust that is sucked up is harmful if inhaled. Follow local regulations and
use breathing protection.
The absolute filter must be changed once a year, but if the daily inspection shows that
the absolute filter needs changing, the following points have to be done after steps 1 - 5
in Check the absolute filter, page
24 .
1. Discard the old absolute filter.
2. Install the new absolute filter. Take care that is is installed centrally in the
absolute filter holder and according to the arrow so that the right side of the filter
is turned upwards in the dust extractor.
3. Fasten the absolute filter, with the absolute filter holder and both of its quick
fasteners, to the lower filter holder's hooks.
5.7.2 Change the sock filter cassette
Warning!
The dust that is sucked up is harmful if inhaled. Follow local regulations and
use breathing protection.
The sock filter must be changed once a year, but if the daily inspection shows that the
sock filter needs changing, the following points have to be done after steps 1 - 5 in
Check the sock filter, page
26 .