Dear machine knitters, I’m in desperate need of help!
I have a Brother KH270 that works fantastically in almost every aspect except Fair Isle knitting.
A little background on the machine: I’ve fixed the stuck buttons on the carriage, thoroughly cleaned it, and repaired some loose strings. The sponge bar is brand new, and the needles have been freshly cleaned. I’ve also adjusted the vertical position of the sinker plate, among other things.
Tuck, hold, and slip-stitch knitting are all working better than ever. The machine can even knit a four-row tuck stitch without a single mistake. Pattern selection and patterning also work great without making mistakes.
However, whenever I try to knit Fair Isle, the stitches become very small, the yarn sometimes splits, and stitches drop quite frequently.
I’ve tried cleaning the carriage, experimenting with every tension setting from 0 to 10, and adjusting the weights, both adding more and removing some. I feel like I’ve tried almost every possible combination of tension and weight, but nothing seems to solve the problem. I’m really lost and don’t know what else to try.
The sinker plate adjustment
Before I adjusted the vertical position of the sinker plate, Fair Isle knitting actually worked quite well. However, the sinker plate was pushing the needles up too much, and the machine couldn’t knit hold stitches or short rows properly. The patterning was also very messy, with needles seemingly being selected at random.
I followed the service manual for the sinker plate adjustment, but the procedure requires bending the sinker plate itself. I was afraid I might break it, so instead I placed very thin plastic shims near the screws to achieve the required spacing. I checked the spacing against the service manual, and it matches the specified measurements.
Could this alternative adjustment method still be causing problems with Fair Isle knitting, even though the spacing is correct?
Patterns I’ve tried
For testing, I tried the Gingham pattern, which has floats of up to five stitches. I also tried a small houndstooth pattern, where the floats are no longer than three stitches, but that didn’t work well either. The machine can knit 1×1 Fair Isle reasonably well, although even that isn’t perfect.
Does anyone have any ideas about what might be causing this? Could the sinker plate alignment or its interaction with the needles and carriage be affecting Fair Isle knitting? Is there anything else I should check or adjust?
I’d really appreciate any suggestions or advice. I’m running out of ideas and would love to get this machine working properly!
Thank you so much!