Maintenance
DUSTHUNTER T · Operating Instructions · 8012428 V 2.0 · © SICK MAIHAK GmbH Germany 97
5.3 Maintenance on the purge air supply
Maintenance work to be carried out:
● Inspecting the entire purge 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. It is therefore not possible to specify precise time intervals for these
tasks. We recommend the inspection of the purge air supply after start-up at short
intervals (approx. 2 weeks) and to optimize the maintenance intervals over a longer
operating time.
Inspection
b
Check the running noise of the blower at regular intervals; increases in the noise level
can indicate a blower failure.
b
Check that all hoses are secure and free of damage.
b
Check the filter element for contamination.
b
Exchange the filter element when:
– Severe contamination (deposits on the filter surface) is visible
– The purge air volume is reduced considerably as compared to operation with a new
filter.
NOTICE:
Irregular or insufficient maintenance of the purge air supply can cause it to fail
and thus cause severe damage to the sender/receiver unit.
b
Always ensure purge air supply when the optical components sender/
receiver unit and reflector are fitted on the duct.
b
Disassemble the connected components before exchanging damaged
purge air hoses (
→
p. 100, §5.4).
The purge air supply does not have to be switched off to clean the filter
housing or to replace the filter element, i.e. the components can remain on
the duct.
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