HTC 80 iD, Manual

Page: 47 / 61

HTC 80 iD Service
1.1 39
1. Take hold of the sock filter cassette and turn it slightly anticlockwise, see
Figure 6-1, page 39 .
2. Pull the whole cassette straight out, see Figure 6-1, page 39 .
Figure 6-1. Change the sock filter cassette
3. Inspect the gaskets on the lower and upper cylinder section. In the case of
damage, replace with new gaskets.
4. Clean the upper cylinder section, if it has leaked dust.
5. Check the sock filters according to Check the sock filters, page 32 and replace
the sock filters that are damaged or used up according to Servicing the sock
filter, page
40
6. Fix the new sock filter cassette in the bayonet fitting.
7. Check for damage to the HEPA filters which may have occurred if dust has
leaked out of the sock filter cassette. For inspection of the HEPA filters, see
section Check HEPA filters, page
33 .
8. Tip back the upper cylinder section and lock with the quick fasteners.