North 5500 series, Инструкция по эксплуатации и техническому обслуживанию, Страница: 8 / 167

2. PRE-USE INSTRUCTIONS
2.1 FACEPIECE
Remove the facepiece assembly from its container and visually check
the facepiece to make sure that the sealing flange is not distorted,
that all components including the exhalation valve flap are in place, in
good condition and secure.
2.2 PRE-FILTERS
If replaceable pre-filters are being used, the
pre-filters should be assembled to the filters
before they are attached to the facepiece.
Place one pre-filter in each N7500-27 fit
check/filter cover so that the entire outer edge
of the pre-filter is seated evenly and securely
against the inner wall of the filter cover (See
Figure 1).
Snap the fit check/filter cover, with the
pre-filter seated evenly and securely, to
the filter (See Figure 2).
2.3 ASSEMBLING THE RESPIRATOR
WARNING
The respirator facepiece and filters may be sold separately. Do
not use this respirator unless the proper filters are attached.
Check with your Safety Manager or Occupational Hygienist to
make sure you have the proper components. If in any doubt, con-
tact your local distributor.
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FIGURE 1
Assembling the Pre-Filter
FIGURE 2
Attaching the Cover