Mach 380 400 500 700
Dr. Mach
Lamps and Engineering
4.4.2 Changing the dispersing lens
The dispersing lens is made of a high-quality plastic.
In case the dispersing lens looses its optical charac-
teristics, this can reduce the luminous intensity and
the light quality, which can be provided. It may be
necessary to exchange the dispersing lens.
To change the dispersion lens proceed as follows:
•
Turn off the lamp.
•
Remove cover
1
as described at point 4.4.1.
ATTENTION: Parts of the housing may be
very hot immediately after use.
•
Loosen the three screws
2
of the bottom part of
the housing
3
with a size 2,5 hexagonal-head
screwdriver.
ATTENTION: Keep hold of the bottom part of
the housing 3 since it could fall out after the
screws have been loosened.
•
Remove the bottom part of the housing
3
.
•
Loosen the 6 locking screws
4
(hexagon socket
2) from the inside of the lamp body
5
and remove
the dispersing lens
6
from the front. Other parts
inside the lamp are also loosened with the 6
screws and should be returned to the same posi-
tions following replacement.
Always place the dispersing lens on a soft,
non-scratching base to preserve its surface.
•
Insert the new dispersing lens.
•
Re-assemble the lamp in reverse order.
ATTENTION: Secure the screws 2 against
loosening with safety lake and adhesive.
1
2
5
4
3
6
59210001
Edition 04
10.12.2001 / Bak Page 20/30
