Members DrmCa Posted November 25, 2021 Members Report Posted November 25, 2021 On my machine, the stitch regulator pin is broken. It does not have the thin section that lives inside the spring (pointed at by the arrow), and its tapered end that contacts the regulator knob is worn. I slightly sharpened it, on a lathe, and it holds slightly better ever since. When I go into reverse, the stitch length knob sometimes turns all by itself. I lived with this issue for quite some time because I can simply keep an eye on the knob and turn it back, but since I was ordering parts from College Sewing anyway, I bought the replacement spring, with the idea in mind to turn my own pin. The problem is that now that I compare the old and new springs, the new one from CS is shorter and weaker. I cannot understand how a shorter and weaker spring can keep the knob from turning any better. Quote Machines: Mitsubishi DB-130 single needle, Kansai Special RX-9803/UTC coverstitch, Union Special 56300F chainstitch, Pfaff 335-17 cylinder arm walking foot, Bonis Type A fur machine, Huji 43-6 patcher, Singer 99 hand cranked, Juki DDL-553 single needle (for sale)
Members nylonRigging Posted November 25, 2021 Members Report Posted November 25, 2021 20 hours ago, DrmCa said: I cannot understand how a shorter and weaker spring can keep the knob from turning any better. Backside Pin notches probably just worn pretty bad on the backside of your Dial knob . Does not take that much pressure of the spring/pin to keep it from turning . I would just get ta new turn dial . People man handle and force the turning of the Stitch-length Dial . It wears out the backside of the Dal . Always push down little bit on the Reverse Lever, to release pressure on that Dial spring/pin , so it turns smooth easy when changing stitch length's . . Quote
Members DrmCa Posted November 25, 2021 Author Members Report Posted November 25, 2021 (edited) 1 hour ago, nylonRigging said: Always push down little bit on the Reverse Lever, to release pressure on that Dial spring/pin , so it turns smooth easy when changing stitch length's A neat trick to remember! The problem is likely that mine is too easy to turn due to the lack of the prong on the pin. I cannot see anything but a dark mark on my dial. Certainly no wear exists. Edited November 25, 2021 by DrmCa Quote Machines: Mitsubishi DB-130 single needle, Kansai Special RX-9803/UTC coverstitch, Union Special 56300F chainstitch, Pfaff 335-17 cylinder arm walking foot, Bonis Type A fur machine, Huji 43-6 patcher, Singer 99 hand cranked, Juki DDL-553 single needle (for sale)
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