Re: HP-65 reads but does not write Message #6 Posted by Geoff Quickfall on 6 Feb 2009, 4:14 p.m., in response to message #1 by Michael de Estrada
Ignazio is correct:
typically the clutch is ignored when the pinch roller is replaced.
the noise is the clutch failing, as it is made of the same material as the roller.
oprn the case and remove the moter from it's housing via the two small screws. pull the clutch off and soak and clean with alcohol. Find a small diameter wire and remove the outer insulation.
the insulation should fit snugly into the clutch sleave. the motor spindle should fit into the hole in the insulation that carried the wire. this method alows the clutch to slip on a jammed card but provides enough friction to drive the card thru with minimal noise.
cheers geoff
I always replace the clutch at the same time as the roller as a new rollerwill stress the clutch.
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