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PostPosted: Thu Jun 14, 2018 7:28 pm 

Joined: Wed May 16, 2018 2:40 am
Posts: 51
Location: California
Anyone know of an on-line resource that describes disassembling and re-lubricating the focus block on a Zeiss Universal, particularly the later version with the plastic focusing knobs?

Is this task even doable by an amateur or do you have to be a Swiss watchmaker to take one of these things apart and get it back together again?

PostPosted: Sun Jun 17, 2018 5:28 pm 

Joined: Mon Mar 02, 2015 11:55 pm
Posts: 1108
I would suggest you not completely disassemble the focus block. You can remove the face plate as well as remove the focus block from the stand to clean the internal gears.

-First remove the stage and condenser holder from the focus block. Also remove the objective turret.
-Then you will need to remove the top plate by unscrewing the two screws circled in blue.
-Then you can move the face plate up and off by turning the coarse focus knob.
-This will expose the six bolt holes/bolts behind the face plate (the top two are circled in red). You will need a long slender screw driver to reach deep into the bolt holes.
-Unscrew the six bolts and the focus block comes off the stand. Now you can access some of the internal gears for cleaning.

Zeiss Focus Block3.jpg
Zeiss Focus Block3.jpg [ 40.49 KiB | Viewed 727 times ]

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