CLEARANCE BETWEEN THE NEEDLES AND THE LOWER LOOPER I NEEDLE GUARDS
In case of size 11 needles are used, when the tip of the lower looper comes from the left just
behind the needle on the left or right, the clearance between both needles (G) and the lower
looper (P) should be 0 to 0.05 mm (S).
In case of size 14 needles are used, the clearance should be 0 to 0.05 mm (H) when the
needles are pushed slightly by the front needle guard (I).
In this condition, the clearance between both needles (G or J) and the rear needle guard (K)
should be 0 to 0.2 mm (L).
TO ADJUST
1. Remove the face plate (Refer to page 6) presser foot needle plate and needles. Insert a
size 11 needle on the right.
* To replace a needle, loosen the 2 screws (M) on the needle clamp.
2. Turn the hand wheel toward you to bring the tip of the lower looper (P) just behind the
needle from the left.
3. Loosen hexagon socket screws (A) and move front needle guard (I) toward you to get
clearance between the front needle guard (I) and the needle (G).
4. In this condition, the clearance between the right needle (G) and lower looper (P) should
be 0 to 0.05 mm (S). If not, loosen hexagon bolt (B) just enough to move the lower looper
driving arm (N). Move it backward or frontward to get the proper clearance between lower
looper (P) and needle (G). Tighten hexagon bolt (B). Do not tighten hexagon bolt (B) too
much. Otherwise the lower looper driving arm (N) will be cracked.
5. Insert a size 11 needle on the left.
6. Turn the hand wheel toward you to bring the tip of the lower looper (P) just behind the
needle on the left from the left.
7. Clearance between the left needle (G) and lower looper (P) should be 0 to 0.05 mm (S). If
not, set the needle gauge No. 787-G02 (O) as shown. Loosen set screw (C) and turn the
needle bar (P) in the direction of (D) or (E) to get proper clearance between the left needle
and lower looper (P). Tighten set screw (C) firmly.
8. Remove the gauge (O).
* There should be no clearance between the needle bar lower bushing (Q) and the
gauge (P).
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