APOLLO 60 HP | Page 11 | ||
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8.4.3If the acoustical foam on the inside of the helmet becomes soiled, it can be wiped with a damp cloth or pulled off and replaced.
8.5Inner Lens
8.5.1Inner lenses should be replaced when dirty or scratched; however mild detergent and water can be used to clean the inner lens. Volatile solutions such as alcohol, gasoline or ammonia must not be used to clean this lens. Allow the lens to air dry; cloth and towels can scratch the lens surface.
9.0SERVICE MAINTENANCE
! CAUTION
Clean the respirator of dust and media before maintenance. All maintenance must be done in a clean environment away from dust and media. Doing so will help prevent ingress of dust and contaminants.
9.1Replacing Inner Lens
9.1.1Unlatch and open the window frame.
9.1.2Working from inside the helmet, pull up the win- dow gasket lip and push the gasket and lens out the front of the window opening.
9.1.3Remove the old lens from the gasket and replace with new lens.
9.1.4Place the new lens and gasket over the window opening. From the inside of the helmet, work the gasket lip back onto the helmet.
9.1.5Smooth out wrinkles in the gasket on the inside of the helmet.
9.1.6To maximize the wear life of the inner lens do not remove the last perforated outer lens. (See Section 9.2) The respirator must never be used without the inner lens in place.
9.2Replacing Perforated Outer Lenses, Figure 4
9.2.1Up to five outer lenses can be installed at one time. For maximum visibility, install only enough lenses to last during a work period.
Locating Tabs
Perforated Outer Lens
Lens Pull Tab
Window Frame
Inner Lens
Hinge
Lens Replacement | Inner Lens Gasket |
Figure 4.
9.2.2Preparing lenses in the following manner will permit lenses to be pulled off easily by a user wearing heavy gloves.
9.2.3Place up to five lenses on a clean flat surface. Fold up the tab of each lens except the first and last, so that the tab of each lens is against the back of the one over it.
9.2.4Unlatch and open the window frame and remove all remnants of old lenses.
9.2.5Pick up the stack of prepared lenses. They will be installed with the straight side toward the top of the helmet, and the pull tabs toward the hinged end of the window frame. See Figure 4.
9.2.6Drop only the top lens tab through the window frame opening at the window frame hinge end. The tab of the bottom lens (inside lens) should not go through the window frame opening. Placing the lenses in this manner will prevent unintentional removal of the last perforated lens and prolong the life of the inner lens. Allow all the lenses to drop in place between the locating lugs on the window frame. The lens perforations should line up close to the window frame opening when the frame is closed and latched.
9.3Suspension
9.3.1To replace and adjust suspension, see Section
6.2.
9.4Outer Cape
9.4.1When the cape becomes soiled or requires re- placement, it can easily be removed as follows.