MAINTENANCE AND FAULT FINDING
L025317 Issue 5 July 2014 5-19
REPLACING THE LENS
WARNINGS: (1) Before undertaking any work on the laser
marking system, remove the mains power plug.
(2) This procedure is to be performed by fully
trained engineers only.
(3) The lens must not come in contact with
unprotected skin (health hazard).
CAUTION: Protect the lens from damage by shock or
scratching.
The lens consists of the optics retainer and the focusing lens, which has
been adjusted at manufacture.
  
Notes: (1) Ensure the replacement lens is available before starting this 
procedure.
(2) In addition to its primary 
optical purpose, the 
objective, with its built-in 
lens, simultaneously acts 
as protection from dust 
and alike for the beam 
scanning unit. As a 
result, the lens should 
not be removed for any 
longer than necessary.
(3) To exchange the lens fit 
the lens cover to the 
lens. The cover is 
delivered with every 
system.
(4) Release these two 
screws and pull out the 
lens cover together with 
the lens. The lens is then held by 2-O-rings and no screws.
(5) To mount a lens, plug in the lens together with the lens cover 
and fasten the two screws.
Lens
Scanner 
Head
Screws for 
lens
Never tighten 
these screws