Jackson WH70 BH3 Bedienungsanleitung Seite 8

12. Protection plates, both internal and external, must be used in conjunction with the
auto-darkening filter in order to protect it against permanent damage.
The WH70 BH3 Air helmet assembly is similar to that as described in the section
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WH70 BH3 HELMET AND HEADGEAR ASSEMBLY. Besides some additional
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integrated parts, (airduct, hose connector (W) and air grill (Q)), which are to be
assembled by the manufacturer only, the WH70 BH3
holder (X), face seal (Y) and a pair of washers (Z).
The hose holder (X) can be snapped into either side of the headgear, typically the side
opposite the dominant hand.
The face seal must be properly assembled within the WH70 BH3
perimeter of the flexi-seal should touch your face and extend below your chin. It's
position related to the helmet and the headgear is evident from figure No.1, while exact
position related to the WH70 BH3
described in the next section FACE SEAL REPLACEMENT.
WASHERS ASSEMBLY
In order to assure adequate sealing in the hood and meeting the safety standards, the
WH70 BH3 Air must be additionally equiped with a pair of washers. The washers are
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attached into the two upper inner pins of the external control frame.
FACE SEAL REPLACEMENT
Both available versions of face seal (Standard and Flexi) have exactly the same
plastic face seal holder, so the replacing procedure is the same for both. In order
to be able to observe the details better, the assembly schemes will show the face
seal holder without the face seal (fabric part).
1. Remove the headgear in the oposite order as described in the section WH70 BH3
HELMET AND HEADGEAR ASSEMBLY.
2. Pull the lower part of the face seal holder to release it from the airduct (1.).
3. Release the face seal holder from the two outside upper latches (2.).
4. Pull the face seal holder from the two inside upper latches (3.).
5. Take the new face seal and push the inner upper side of the face seal holder into
the two upper inside latches (4.).
6. Push the outside upper part of the face seal holder into the two outside upper
latches (5.).
7. Slide the lower part of the face seal holder into the gap between the helmet and
airduct (6.).
8. Assemble the headgear as described in the section WH70 BH3
HEADGEAR ASSEMBLY.
MOUNTING OF THE HOSE
Screw in the hose of the PAPR unit (hose comes with the AIRMAX
shown on the scheme. Adjust the length of the hose between the hose connector and
the hose holder so you achieve the maximum comfort. We recommend this length to be
25-30 cm of non stretched hose, so the upper loop would not be too long, as the length
should allow comfortable lifting of the helmet. It is recommended that the length of the
hose from the hose connector to the AIRMAX
follows the arc of the user's back without being stretched. Once the hose is placed into
the hose holder, adjust the height of the hose by simply pulling the hose through the
hose holder upwards or downwards. Fine adjustment of the shape of the loop can be
achieved by turning the hose left or right.
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Air helmet, airduct and face seal holder is precisely
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power unit is adjusted, so that the hose
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Air helmet has also a hose
Air helmet. The
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HELMET AND
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power unit set) as
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F.1
Figure
F.2
Figure
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F.3
Figure
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