Category: Mechanical

JUKI LK-1900A MAIN SHAFT ASSEMBLE & DISASSEMBLE

Main shaft connection/disconnection: Loosen the set screw (2) of the main shaft counterbalance (1) through the screwdriver hole A, then remove the taper screw (3). Loosen the two set screws (4) (through the screwdriver...

Adjusting the holding pressure

Adjusting the holding pressure (BE-438D) Loosen the nut (1) and turn the nut (2) to the point where it is just tight enough that the material will not slip out of place when it...

HOW TO REPAIR INDUSTRIAL SEWING MACHINE

Adjusting the needle clearance Turn the pulley to align the tip of the rotary hook with the needle center line. Then loosen the set screw (1) and turn the eccentric shaft (2) to adjust...

NEEDLE AND ROTARY HOOK TIMING

The tip of the rotary hook (3) should be aligned with the center of the needle (4) when the needle bar (1) moves up from its lowest position to the position where reference line...

Needle and Feed Mechanism Timing

Adjusting the needle and feed mechanism timing The standard position for point of the needle is as described below when the feed dog (1) is lowered from its highest position until it is aligned...