Singer 601 - Page 14

Fig. 83
Fig. 84
TIMING TENSION RELEASE
To adjust the timing of releasing the tension when presser bar is raised by hand or by knee operation, loosen the
two tension releasing wire connecting plate screws J2 and move connecting plate K2 up or down as required.
(Fig. 83)
If timing is late, move connecting plate K2 downward.
If timing is fast, move connecting plate K2 upward.
Firmly tighten the two screws J2 when correct timing has been achieved.
The tension discs should begin to separate, or release the needle thread tension, just before the thread puller
begins to make its return stroke to trim the threads.
When adjusting this timing:
1. Check timing of tension release action cam. (Refer to TIMING TENSION RELEASE ACTION CAM adjustment
procedure on page 43.)
2. Loosen the two screws holding the tension releasing wire guide tube clamping plate L2 and move guide tube M2
to the left or right as required and firmly tighten the screws. (Fig. 84)
(To advance timing, move guide tube M2 to the right and to retard the timing, move guide tube M2 to the left.)