Seiko TH-2B - Needle and Hook Timing Adjustments; Needle Height Setting; Shuttle Hook Position Setting

3. HEIGHT OF NEE;DLE
STANDARD ; When the needle is its highest point, the height
from the surface of the needle plate to the lower
edge of the needle eye is 30• 5^0.5>nra,
f
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To make sure; The upper edge of the needle eye should reach .
part A of the needle guard on the shuttle driver)
at the needle is its lowest point.
30 S
e
POSITION OF SHUTTLE HOOK , , x
Turn the handwheel until the shuttle driver(#28/h51) reaches at
extreme left side. At this point, when contacting C part of the
hook with B part of the driver, the point of the shuttle hooktD)
should be at 1mm from the edge of the shuttle race(E).
For adjustment, loosen the screw(^2810it for Cylinder type, #28805
for Flat bed type)
PL/IT
TTft- .
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From the library of: Superior Sewing Machine & Supply LLC