UnionSpecial 56500R, Инструкции по настройке

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REAR NEEDLE GUARD (CONT.)
NOTE: Any change in stitch length will require a change in rear needle guard setting.
FEED DOG SETTINGS
Feed dog (A, Fig. 10) should be centered in throat plate (B)
with equal clearance on all sides and ends with feed travel set
to desired stitch length. At highest point of travel, tips of feed
dog teeth should extend the depth of one full tooth +1/32 inch,
above throat plate and parallel to same. Loosen screw (D),
which secures feed dog in position, and adjust screw (C) up or
down to support feed dog. Retighten screw (D).
Parallel adjustment can be made by loosening nut (A, Fig. 9) and turn screw (B) clockwise to lower front
of feed dog, counterclockwise acts the reverse. When properly set, retighten nut (A).
Right to left adjustment can be made by loosening screw (A, Fig. 11) and slightly move feed rocker (B)
on feed rocker shaft (C) as required, then retighten screws. Check to ensure that feed rocker arm (D)
does not bind after adjustment.
Forward or rearward centering of the feed dog
can be accomplished by loosening nut (E, Fig.
11). Move feed rocker (B) as required and re-
tighten nut.
CAUTION: Feed crank link sub-assembly (M, Fig.
11) MUST have shake with NO binds at a 360°
rotation of the handwheel. Nut (F) should be
torqued at 55 in. lbs. (63 cm/kg).
PRESSER BAR HEIGHT AND PRESSER FOOT
Height of presser bar (A, Fig. 13) is correct when presser foot can be removed by depressing foot lifter
lever (B, Fig. 12). There should be approximately 1/32 inch (0.8mm) clearance between the lower sur-
face of the presser bar connection and guide (B, Fig. 13) and the bottom surface of the casting head
opening when foot lifter lever is released and the presser foot is lying flat on throat plate. Make sure
feed dog is below throat plate surface.