Feed Timing; Needle-To-Hook Timing - JUKI HZL-E61 Service Manual

5-1-5 Feed timing

After checking the feed dog height and needle bar height, perform this adjustment.
The feed timing will affect the tightness of the needle thread.
How to adjust 1. Attach HA x 1 #14 needle.
2. Loosen two screws in the main shaft pulley.
3. Turn the hand wheel and lower the needle bar to align
4. Turn the hook driving shaft and move the hook driving
5. Temporarily tighten the screws in the main shaft pulley
6. After performing this adjustment, check also "Needle-to-hook timing".
* Adjust so that the tip of the needle aligns with the top surface of the throat plate when the feed dog meets with the top
surface of the needle plate. The tolerance is within the range of the tip of the needle to the lower end of the needle hole.

5-1-6 Needle-to-hook timing

Remove the throat plate, base plate, free arm bottom cover and DF installing base.
1. First, make sure that the needle entry position and the height of the needle bar have
How to check
2. Select the straight stitch (left needle position).
3. Then turn the hand wheel by hand to bring the needle bar to the lowest point of its
4. Further, gradually raise the needle bar by hand and stop it at point C where the center
5. At this time, make sure that dimension D from the top end of the blade of the hook to
Setscrew of DF installing base (2 places)
the tip of the needle with the top surface of the throat
plate.
shaft in the direction of rotation so that the top end of
the feed dog aligns with the top surface of the throat
plate in the direction where the feed dog comes down
from the highest point.
and check again.
been properly adjusted.
stroke.
of the needle aligns with the top end of the blade of the hook.
the upper end of the needle eyelet is 1.06 to 1.26 mm. When the dimension is not
proper, perform the adjustment below.
- 1 3 - - 1 3 - - 1 3 - - 1 3 - - 1 3 -
Upper side in the rear
Front side
Main shaft pulley