Maintenance and repairs
HTC GL 40 D
28
2.0
1. Take hold of the sock filter cassette and turn it slightly anticlockwise.
2. Pull the whole cassette straight out, see Figure 5-2, page
Figure 5-2. 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. Fix the new sock filter cassette in the bayonet fitting.
6. Tip back the upper cylinder section and lock with the quick fastener.
7. Check for damage to the absolute filter, which may have occurred if dust has
leaked out of the sock filter cassette. For inspection of the absolute filter, see
Check the absolute filter, page
8. Reassemble the absolute filter holder and lock it with both of the quick fasteners.
