Radiance 7201111 Instruction Manual - page 11
RAD/09
MAINTENANCE
REMOVABLE COVERS, secured with quarter-turn fasteners, are located above the
lamphouse and optical system. To clean the lenses, remove the two front optical system top covers.
Thecenterlens,thebacksurfaceofthelargelens,andtheheatfilterglasscanbecleanedeasilythrough
this opening. Using a good grade of alcohol and piece of lens tissue (facial tissue can be used as a
substitute), gently wipe both sides of each lens until the surfaces are clean. To clean the front surface
of the large lens, slide the lens carriage to the full forward position. The front surface is then readily
accessible through the front of the housing.
THE REFLECTOR should be cleaned periodically with a clean, soft lint-free cloth to
removeanydustfromthereflectingsurface.USENOABRASIVES.Cleantheenvelopeofthelamp
in the same manner before replacing the lamphouse cover.
THE INSIDE of the lamphouse, lens mechanism and the fan should be cleaned
periodically, depending on the dust conditions at each installation. The fan impeller blades and inlet
grilles need cleaning to remove the dust buildup that accumulates over a period of time.
THEFRAMINGSHUTTERDRIVEDISCS(seeFigure3,Items12&13)andtheroller
bearings (Item 11) are lubricated with white lithium-base grease. If replacing the grease, use a similar
type(typicaldroppoint380°F/190°C).Donotoverlubricatesinceexcessivegreasewillattractdust
and other contaminants.