Pfaff 1520-1530-1540 Sewing Machine Service Manual.
Examples include:
* Adjusting toothed belt system.
* Sewing hook timing.
* Sideways feed dog direction.
* Presser bar height.
* Adjustment of thread tension.
* Hook to needle clearance.
* Changing the bevel gears.
* Timing of feed motion.
* Replacing automatic module.
* Locking disk.
* Zigzag unit.
* Electrical safety test.
* Cleaning and oiling machine.
99 page service manual.
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