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Unread 04-02-2003, 18:41
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Re: What is it ESSENTIAL to do to a drill transmission...

Quote:
Originally posted by Iain
...to lesson its chances of failure in high-stress situations? We finally have our electrics hooked up, but when we tested our drives (wheels off the ground, mind you) we get nasty snapping noises whenever we shift from forward to reverse rapidly.

We already have the white ring (you can divine my level of technical expertise from that statement; I don't even know what it actually is) locked in the forward position, which I gather is a good idea. However, I've gotten the impression that something inside the transmission needs to be changed as well, or we run the risk of catastrophic failure once we actually put real strain on the motor.
Is the left-handed screw all the way into the coupling? If it is, you shouldn't be able to move the Al hex piece AT ALL. If it isn't, the coupling will start to unscrew until it hits the head of the left-handed screw, at which point everything will suddenly engage, possibly causing the symptoms you describe. Note that it takes a lot of torque to get the left-handed screws down the last few milimeter, but it needs to be done.

--Rob
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