Oiling Juki HZL-F series and/or HZL-DX7
I have a Juki HZL-DX7, and there are no oiling instructions in the Maintenance section of the Operating Manual. From what I have read, there are conflicting opinions as to whether or not to oil.
The DX7 is apparently very similar to the HZL-F series.
My machine has developed a kind of "rasping" sound. When I unthread the machine, and remove the bobbin case, this sound disappears.
I've contacted Juki Product Support and have not had a reply. My local dealer sells mostly industrial machines, and doesn't appear to be very familiar with my domestic machine.
While waiting for information from either Juki or my local dealer, I was wondering if any of you have are oiling your machines and where.