White 503 – 534 SuperLock Sewing Machine Service Manual.
Examples include:
Checking performance problems.
Replacement of moving cutter.
Feed timing.
Needle bar height.
Clearance between lower looper and needle.
Adjustment of needle guard.
Much more!
53 page service manual.
White Superlock models: 503, 523, 534, 504
This is a service manual. If you need the instruction manual, please see our store.
Please ask any questions you have before ordering manual.
