: Setting the loop forming distance and the gap between the hook cover and driver. Tension Calibration
* 2 Husqvarna Optima 600 serien 104 71 99-26. DISMOUNTING AND MOUNTING INSTRUCTIONS ............................................ . Husqvarna 610/620/630 Parts List | PDF - Scribd husqvarna optima 610 service manual
Hook-to-needle timing is retarded or needle bar is too high. : Setting the loop forming distance and the
Sharp burr on the rotary hook or needle plate; tension too tight. Because this manual is out of print, you must be cautious
Because this manual is out of print, you must be cautious. Many online sites offer poorly scanned PDFs that are missing pages or illegible.
Needle Down Position Hook Catch Point (Rising) | | | | | | | | | 0 | <-- Eye | 0 | | | | | <-- Hook Point passes \___/ \___/ just above the eye Checking Hook Timing Remove the needle plate, bobbin case, and feed dogs. Insert a brand-new, standard size 90/14 needle.
Maintain a razor-thin needle clearance (0.05 mm to 0.1 mm)—the hook point should come as close to the needle as possible without physically touching or deflecting it.