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No, the screw is free-wheeling now
Posted by georgev (more from georgev) on Fri, 28 Nov 2003 14:04:48
In Reply to: Screw is for adjustment purposes..., David Ingram, Fri, 28 Nov 2003 13:06:39
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If you back the screw out too far, it apparently loses contact with the inner threads and then cannot be tightened or loosened, but there must be a spring attached to it so that it won't come out.
I tried applying force toward the screw when tightening and that doesn't seem to get it back on thread.
The screw must be attached to the piston in some fashion for it to tighten while the piston goes through its travels during brake pad wear. But is the fluid pressure on the screw, which doesn't make sense to me, or on the piston itself and the screw just comes along for the ride.
If the fluid acts on the piston, the caliper should work as normal. If the fluid acts on the screw, then if the screw loses contact with the thread - the fluid cannot cause the screw to turn the piston.
I imagine the screw is for ease of pad replacement and parking brake adjustment - but i need someone to confirm this.
Sorry for how long this was - thanks.
posted by 216.164.18...
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