Timing The Needles To The Looper (Cont.) - JUKI UnionSpecial 36200UAD52 Adjusting Instructions / Illustrated Parts List

TIMING THE NEEDLES TO THE LOOPER (CONT.)

FIG. 9
FIG. 10
Attach the looper clamp and height gauge (A, Fig. 9) to the
heal of the looper by tightening screw (B). Turn the handwheel
slowly in a clockwise direction until needle bar (C) touches
stop screw (D). Loosen screw (E) and set synchronizing
gauge rod (F) so the flat end is on one of the lines in the
center of the block (G). Tighten screw (E).
Turn the handwheel in the opposite direction until the needle
bar touches stop screw (D, Fig. 9). Synchronizing rod (F)
should come to the same line on block (G). The difference
must not exceed one line.
If the setting cannot be achieved, main shaft coupling (A,
Fig. 10) must be repositioned. Remove the crank chamber
cover and gasket. Loosen the three coupling screws (B). If
synchronizing rod (F, Fig. 9) moves more to the right while the
handwheel is rotated in a clockwise direction, the looper is
too fast and the main shaft should be retarded. If the rod
moves more to the right when the handwheel is rotated in a
counterclockwise direction the looper is too slow and the
mainshaft should be advanced. Tighten screws (B, Fig. 10).
NOTE: If the stationary Knife interferes with the syn-
chronizing rod (F) remove the knife to make
the adjustment.
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