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5000 h / 3 years
Cleaning and maintenance
2.6.5
Check ash box position switch
Check the ash box position switch
Inspect the function of the ash box position switch. It
must be actuated when the ash box is fitted.
Fig. 2-53: Position switch for ash box
2.6.6
Check de-ashing
Lubricating the de-ashing drive chain
On the rear of the boiler, remove the plug screw from
the cover next to the de-ashing drive.
Fig. 2-54: Plug screw
Through this opening, lubricate the de-ashing drive
chain with chain spray. The easiest way to do this is to
start de-ashing. This sets the chain in motion so it can
be completely lubricated.
Check de-ashing system
Start de-ashing in order to check de-ashing of the
boiler. The movement of the turbulators in the heat
exchanger must be audible, the tilting grate must tip
and then close again, and the ash screws must
operate without malfunction.
Summary of Contents for HACK 20 kW
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