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Posted

Hi,

I am working on a QSS35 (branded as Fuji LP7200, but same machine as I've been told). I'm trying to replace the "motor 2 belt" in exposure advance unit, but I ran into a problem. In the manual, the motor holder should have a bearing holder plate attached to it one one side, but what I have is the holder being one solid piece of metal (see pics). I am not sure how to go about removing this belt because it is trapped between the shaft and the housing. Tried taking apart the entire motor from the damper end, but the damper doesn't want to come off - and taking it apart from the butt end doesn't seem right. Is there some trick to pushing the shaft/bearings out of this one-piece holder? Not sure how this belt is supposed to come out at all. Did anyone encounter this before? Any info appreciated.

Thanks!

manual.jpg

IMG_20161215_131846.jpg

IMG_20161215_132849.jpg

Posted

It's difficult to see from the Photos, I really need to see some more angles. But my guess would be to loosen the grub screw/s on the pulley, remove the screws that hold the motor to the bracket, and use a punch to tap the shaft of the motor out from the pulley through the centre hole.
Then you will need to tap the bearing out from the end so you can remove the pulley.
I would replace the bearings as well as it's likely you'll damage them in the removal process.

Posted

should loosen setscrews on the pulley body, then remove 4 screws mouning the motor to the holder Assembly holiding the pulley . . . . I saw in part list with components moved out to show you 

Posted

Undo the bolts holding the motor undo the grub screws on the pulley turn the bolts round from the motor and screw them into the other blind holes, they will push the motor back off the pulley or at least with the bearings, clean any burrs of the motor shaft with a file to help getting if off next time

Posted

Thanks all, I did manage to replace it, here's what i did.

I hammered the motor out of the pulley and bearing holder through the centre hole you can see in that pic. Then, through the same hole, but with a nail punch, hammered out the pulley (together with the bottom bearing) out of the top bearing. Put it back together the same way, seems to be working fine.

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