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93-0061-00 Rev. A
14
Adflo
®
Turbo Unit
After you have removed the HE filter, the prefilter is
visible. The prefilter is designed to extend the service
life of the HE filter by capturing many of the particles
that would otherwise be captured by the HE filter. The
prefilter shall always be used and should be changed at
the same time the HE filter is changed. To remove it,
simply lift the soft prefilter out with your clean finger.
Note: the prefilter CANNOT be cleaned. Dispose of
the used prefilter as per local and federal regulations.
After you have removed the prefilter, the spark arrestor
(metal screen) is visible. Inspect the spark arrestor. If it
is dirty, remove it and clean with a mild solution of
clean water and mild detergent (dishwashing soap).
Completely dry the spark arrestor with a clean cloth. If
the spark arrestor does not come clean, or if it has any
damage to it, replace with a new spark arrestor (see
Chapter 4 for replacement parts).
Place the cleaned (or new) spark arrestor into the Adflo
®
Turbo Filter Cover. Next, place the new prefilter into
the Adflo
®
Turbo Filter Cover. Then, place the new HE
filter into the Adflo
®
Turbo Filter Cover (see Figure 15).
To reinstall the Adflo
®
Turbo Filter Cover in the Adflo
®
unit, hold the Adflo
®
unit so the “Adflo
®
” logo faces
you. Then hook the left side of the Adflo
®
Turbo Filter
Cover into the Adflo
®
unit. Press down on the right
side of the cover until the catch fully engages.
Figure 15:
Installing the Spark Arrestor, Prefilter and HE Filter.
Adflo Turbo Filter Cover
Spark Arrestor
Prefilter
HE Filter
3.4 Replacing/Installing the OV/HC/CL/SD
Adflo
®
Cartridge
The Adflo
®
Turbo Unit has an exclusive “stackable”
capability that allows it to extend its applicability into
welding environments requiring supplemental
respiratory protection against specific fumes and
vapors. This “stacked” filtration provides protection
from particles, organic vapor, sulfur dioxide, chlorine,
and hydrogen chloride. An on-site safety specialist or
industrial hygienist must review the HE filter label
combined with the OV/SD/CL/HC cartridge label to
determine the applicability for a given
environment/application (see Section 1.2 for Respirator
Approvals and Limitations).
Some users will buy Adflo
®
Turbo Units that already
have the OV/SD/CL/HC Adflo
®
cartridge installed from
the factory; other users will choose to install the
OV/SD/CL/HC Adflo
®
cartridge on their own to meet
changing applications and/or environments.
NOTE: IN ALL CASES, THE OV/SD/CL/HC
ADFLO
®
CARTRIDGE IS ALWAYS USED WITH
THE HE FILTER, PREFILTER, AND SPARK
ARRESTOR.
To replace or install an OV/SD/CL/HC Adflo
®
cartridge, you must first remove the Adflo
®
Turbo Filter
Cover as follows: hold the Adflo
®
unit so the “Adflo
®
”
logo faces you; press in on the Adflo
®
Turbo Filter
Cover’s black catch on its right side, and lift off the
cover (see Figure 16).
Figure 16:
Removing the HE Filter and OV/SD/CL/HC Cartridge.