Every Week - HTC 80 iD Manual

HTC 80 iD
5. If the filter is torn or defective, it should be replaced. In this case, go to Replace
sock filters,
fitted back in place.
5.4

Every week

Tip!
Suspected leaks can be checked for by carefully pulling a cloth, piece of paper
or another light and pliable material over the area where it is suspected the leak
is. If the material fastens due to suction, there is a leak in the area. It is also
possible to increase the negative pressure by closing the sliding valve and thus
increasing the sensitivity of this method.
5.4.1 Check pre-separator
Remove the cover of the pre-separator. Inspect the wear on the rubber seal in the cover;
replace if necessary. Check there is no unusual dust build-up in the cover or cone of the
pre-separator; clean if necessary. Also check that there are no cracks or other leaks in
either the cover or the pre-separator. Visually inspect that the sealing strip and seal
surface on the cover and cone look good. Also check the bypass valve (see Check
sliding valve bypass, page 36) and the dust covers (see Check dust covers,
).
5.4.2 Check dust extractor
Lower the dust extractor to the service position (according to Lower the dust extractor
to the service position, page 15). Check that there is no unusual dust build-up; clean if
necessary. Inspect sock filters (according to Check the sock filters, page 32). Visually
inspect that the sealing strips and seal surfaces on the upper and lower sections look
good. Inspect filter raising valve (according to Check filter cleaning valve, page 36).
Check that there are no cracks or other leaks in either the bottom section or the upper
section.
5.4.3 Check internal hoses
Check the internal hoses are undamaged and do not have any cracks or suchlike. In
addition, make sure that the air can flow unobstructed, so there are no blockages or
similar. Replace the hoses, if necessary.
5.4.4 Check HEPA filters
Note!
When checking the HEPA filters, the dust extractor must be placed in the
operating position.
1.1
page 37 for further instructions. Otherwise, the filter should be
Maintenance
page 32
33