G'day
still ran well except for two, the ubiquitous Class 31 and 37. Both with
occasional grinding noise. I stripped down and oiled the gears and it ran better, but still >not like it should and still with the grinding noise. Any ideas?' Yes. The grinding noise is caused by a dry nylon bearing on the armature shaft. You need to apply a small amount of oil to the 2 bearings. This should stop the grinding sound but Only Use A Small Drop of Oil.
I hope this answers you question. Thank You Graeme Hearn, New Email: snipped-for-privacy@bigpond.com.au New Webpage: