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Old 11-04-2010, 01:52 AM
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aokman
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Join Date: Nov 2007
Location: Victoria
Posts: 32
EQ6 - Transfer gear fix

Hey everyone, just thought id share some experience i had with my new EQ6 over the weekend.

Got it off the forums but i wasn't really happy with the slewing noise so i thought i would poke around and see what makes it tick So i popped out both motors. To my surprise i found both had quite a bit of backlash and 1 had excessive deflection up and down.

http://www.chipcontrol.com.au/Video/IMG_0145.MOV
http://www.chipcontrol.com.au/Video/IMG_0146.MOV

Why? For some reason they decided that O-rings would be fine for securing a transfer gear in place...the results speak for themselves with the gear flopping around, even after tightening you still cannot eliminate all of it. Also the transfer gear is not a perfect size for the shaft and does have a slight movement.

My solution to the problem was to rummage around in my spare bits and i found some washers that are a perfect fit for the holders and the shaft. They are a solid plastic bushing normally so they can handle the work but i packed them with plasguard just to play it safe.

www.chipcontrol.com.au/Video/IMG_0150.MOV

The other gearbox's transfer gear was directly rubbing on the base plate? it had a brass washer under it but it was sitting in the recessed area and never actually makes contract with the transfer gear? Solution for this was again to add a nice washer but thicker to raise the gear off the base plate.

In both cases i needed to adjust the motor gear slightly higher to mesh normally. Once the transfer gear is sorted, loosen all the screws on the motor mounting and adjust the gear mesh so there is little-no freeplay...

So far its much better, ive eliminated startup noise on 1 axis, i should have the other fixed tomorrow with some more tension adjustments.
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