STACK 710 7 Maintenance
ENVEA UK Ltd (PC-000878-MA Issue 7, December 2021) 59
7.3 Maintenance
Examine hoses for holes or leaks.
Test all hose clamps for tightness.
Pre-filter
(Where fitted)
Dust level should be below the line.
Remove, empty, wipe out, and
replace.
Remove the filter from the filter
housing. Remove the cap. Empty
the cap and wipe it out. Wear eye
protection, tap gently to remove
dust. Clean carefully with a
blowgun. Examine for holes or rips.
Re-fit.
Safety Filter
(where fitted)
Replace with a new filter.
Check for bearing noise. (Bearing
failure, and subsequent blower
failure, can be detected early.) Check
blower air flow to be sure that the
blower is performing normally. (Dirty
air filters may reduce air flow and
cause undue stress on the blowers.)
Check and clean the optics as
described in section .
Unclip and hinge open the
Transceiver and Retro-reflector and
check that there is no ash buildup
inside the purge adapters that could
block the light path.
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