Instruction manual

AM.11.100e edition 1.4
Chapter 4: Servicing in the Maintenance Base 30
How to replace the outer lens, continued
Step Action
8
Push the lens (B2) with the lens gasket (B3) towards the inside of the
cover (B1)
9
Clean and degrease the lens chamber with any effective solvent.
CAUTION: Never use any abrasive substance.
Remnants of Loctite are present in the fixation holes of the screws B6.
Clean them using a cleaning tap for blind holes (preferably use a tap with
a right spiral groove) and blow with dry, oil-free compressed air.
10
Using a small brush, apply a thin layer of lubricant MOLYKOTE HP870
INERTA (ADB PN 7850.05.061) in the top section of the lens chamber of
the cover (see in the figure above).
11 Bring a new lens gasket (B3) over the lens.
CAUTION: Always replace the lens gasket (B3) and the 8 screw and
lock-washers (B6, E5) by new ones when a lens is replaced.
This to guarantee fixture water tightness.
12
Push the lens/ gasket assembly in the lens chamber from the inside, put
the lens gasket protection (B4) and clean the inner surface of the lens.
13
Secure it to the cover by means of the lens support plate (B5) and 4 new
screws (B6). Don’t forget the lock washers.
Refer to the table “Screws Overview” page 44 for the tool to use and the
torque to apply.
14
Reinstall the lamp support plate (E2) by means of 4 new screws E5.
Don’t forget the lock washers.
Refer to the table “Screws Overview” page 44 for the tool to use and the
torque to apply.
15
Introduce the lamp (E3) and secure with the lamp spring (E6)..
CAUTION: Never touch the bulb of the lamp with your bare fingers. It
would reduce the lifetime of the lamp considerably. Should it happen,
clean the bulb with methylated spirit.
Procedure