Showa Denki Mistresa CRH Series, Operation Manual

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11. Operating cautions
(1) In order to prevent fires, never allow explosive gases, organic solvents,
sparks, or burning cigarettes to be sucked into the suction port.
(2)
The optional chip separator should be used when operating the Mistresa
in environments where large amounts of chips, dust, and high-concentration
mist are present.
(3) In environments where large amounts of
oily
mist (non-water-soluble)
are being sucked in, or where the sucked in mist particulate is small, etc.,
either the optional
general-purpose after-filter or the
high-performance after-filter
should be used to compensate for
changes in the collection efficiency due to these operating conditions,
and to prevent blow leakage and re-dispersion. (With CRM-S, CRM-V
and CRMH series Mistresas that are not equipped with an end filter, use
an optional end filter.) Additional optional parts are required to install
the after-filter.
(4) The optional high-performance after-filter should be used when
operating the Mistresa in environments with small particulate matter
such as oily smoke, etc., and where the mist particulate is small and
present in high concentrations. Moreover, the optional inner-filter should
also be used to increase the after-filter life.
(5) For the CRM-S Series, CRM-V Series and CRMH Series Mistresa, use
care so as not to let the filter (de-mister) clogged to choke itself up (a
state where no air flows). Otherwise, since the air flow cools the
integrated air-cooled motor, choking up causes the motor not to cool
down sufficiently, possibly leading to burnout. It does not apply,
however, to the motors of the CRH (high temperature types) as they sit
outside the units.
(6) Make sure that the CRH (high temperature types) Series Mistresa draws
mist. Otherwise, since the lack of mist (fluid) causes insufficient
lubrication and poor cooling at the contacts between the oil seal and
shaft, the resulting heat buildup leads to a shorter service life and
premature leak. However, this does not apply to the CRM-S, CRM-V
Series, or CRMH Series as each of them employs a V ring that can
operate in a dry condition.
(7) If a CRH (high temperature types) or a CRMH-S Series has to draw in
water mist that does not contain a corrosion preventive, be sure to
operate it at no load for a few minutes to dry the inner structure to
prevent corrosion.