Maintenance
FLOWSIC100 · Operating Instructions · 8012513/YSA5/V 2-1/2016-07 · © SICK Engineering GmbH 161
Subject to change without notice
5.3 Maintaining the cooling air supply of the internally cooled types M-AC
and H-AC
Maintenance tasks are:
● Inspecting the entire cooling air supply
● Cleaning the filter housing
● Replacing the filter element, if necessary
The dust load and wear on the filter element depend on the degree of contamination of the
intake ambient air. For this reason, specific intervals for carrying out these activities cannot
be given. We recommend inspecting the cooling air supply at short intervals (approx.
2 weeks) and then optimizing maintenance intervals over a longer period of operation.
5.3.1 Inspection
Check the running noise of the blower at regular intervals; increases in the noise level
can indicate a blower failure.
Check hoses are secure and free of damage.
Check the filter element for contamination.
The filter element must be exchanged when:
● High contamination is visible (deposits on the filter surface)
● cooling air flow is reduced considerably compared to operation with a new filter ele-
ment.
NOTICE:
● Irregular or insufficient maintenance of the cooling air supply can cause it
to fail and thus severely damage the sender/receiver unit!
● The cooling air supply must be guaranteed while the sender/receiver units
are installed. Disassemble the sender/receiver unit before exchanging a
damaged cooling air hose (
p. 163, 5.4).
The cooling air supply need not be switched off to clean the filter housing or
replace the filter element, in other words, the sender/receiver unit can remain
on the duct.
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