Navitar 377MCZ125 Installation Instructions

Installation of Navitar/ NuView Series 377 lens on Christie model LX58 & 

LX66 projectors

. 

TOOLS REQUIRED: PHILLIPS HEAD SCREWDRIVER 

Disassembly: 

1.  Disconnect unit from power source.   

2.  Remove front cover by removing 2 Phillips screws from bottom of lower cover.    

Remove 4 remaining Phillips screws from the top cover (2 on top of cover, 2 more 

near lower portion of top cover)  

Assembly: 

1.  Separate your Navitar lens and adapter by gently rotating the lens counterclockwise 

while holding the adapter. DO NOT place undo pressure on the lens to separate as 

this may result in damage to the nylon drive pin. 

2.  Insert the keyed portion of the adapter ring into the projector and rotate the lens lock 

lever downward while squeezing together. 

3.  Replace the front cover of the projector removed in step 1, above. 

4.  Reinstall the Navitar lens into the adapter by turning clockwise into the adapter. 

5.  To focus, gently twist the front of the lens.  To zoom, loosen thumbscrew and twist 

the knurled zoom ring. Re-tighten thumbscrew.  CAUTION:  When focusing, be sure 

not to twist lens completely out of the adapter!