Viessmann Vitoligno 300-H Installation And Service Instructions For Contractors page 76

Boiler for woodchips and pellets
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Commissioning, inspection, maintenance
Checking the grate end position and cleaning
Checking the grate limit switch
Danger
Risk of crushing by and entanglement in the
grate gears
Do not reach into the gears.
5.
Fig. 58
5. Remove left-hand casing.
76
(cont.)
Check the gear for actuating the grate limit switch in
the following cases:
If the grate is not horizontal in the end position.
If the gap between the grid elements is too large.
6.
6. The gear for actuating the grate limit switch must
be in the switching position.
Note
The switching position of the limit switch is imple-
mented as a bore in the middle gear.

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