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8 Maintenance / Replacing Parts
* The helmet, all lines, the air inlet and all connections should be inspected for the presence of dust
and debris and cleaned before use. All parts should be inspected for wear and tear.
* Regularly inspect and clean the foam filter and screen filter in the air control valve and air inlet in the
helmet.
* After use, the helmet should be hung by the handle in a clean place.
8.1 Replacing the inner lens
(1) Open the lens frame.
Open the lens frame latch and remove frame.
(2) Remove the inner lens.
* From the outside, use one hand to pull up the lens gasket in upper
area.
* Use the other hand to push the lens out from the inside.
* Check the fit of the gasket.
(3) Fit new inner lens.
* Clean the gasket and moisten the groove for the lens with mild soapy
water.
* Place the new lens in the centre of the gasket and push it into the
groove of the gasket with the installation tool. Avoid scratching the
lens (see Figure 3).
(4) Close the lens frame
again.
Hook the frame back in the latch and close.
8.2 Replacing the outer lens and cover lenses
Up to five perforated cover lenses can be fitted simultaneously. However, to ensure maximum visibility,
we recommend using only the number of cover lenses necessary for the specific work operation.
Follow the instructions below to ensure that the cover lenses can be easily removed by an operator
wearing heavy work gloves.
(1) Open the lens frame.
Open the lens frame latch and remove frame.
(2) Remove the outer lens.
Carefully remove the outer lens from the mushroom-shaped studs.
(3) Remove the used cover
lenses.
Carefully remove the cover lenses or remnants of the cover lenses from
the mushroom-shaped studs.
(4) Fit the new cover lenses.
Position the tabs on the hinge side.
Pull all except the last tab through to the front of the frame and press the
cover lenses onto the mushroom-shaped studs on the inside of the
frame.
(5) Fit the new outer lens.
When fitting the new outer lens, ensure that there is no dust or dirt be-
tween the lenses.
