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