21
13
13
13
13----3 Replacing the cams
3 Replacing the cams
3 Replacing the cams
3 Replacing the cams
To replace outside cam B, remove nut A (note that
this nut has a left-hand thread).
To replace inside cam H, loosen screws C and D, and
remove the collar. Remove screw F from lever S.
Then move lever S down in the direction of the
arrow.
13
13
13
13----4 Timing of spreaders
4 Timing of spreaders
4 Timing of spreaders
4 Timing of spreaders
To adjust this timing, set cam No.8 on the inside
and No.1 on the outside. Then follow the
procedures below. Spreader K moves left to right
with the inside cam. Each of spreaders L and M
moves in the opposite direction with the outside
cam.
1. When the needle starts to move from the top to
the bottom of its stroke, adjust the cams so that
spreaders K, L and M stop moving.
Adjustment is made by loosening screws C and
J (see "Replacing the cams").
2. Position of spreader K
With spreader K at the extreme left end of its
travel, the third spreader's eye on spreader K
should be aligned with the center of the left end
needle. Adjustment is made by loosening nut
D for lever N (see "Replacing the cams").
3. Position of spreaders L and M
With spreader L at the extreme left end of its
travel, the forth spreader's eye on spreader L
should be aligned with the center of the left end needle. Adjustment is made by
loosening nut P for lever E (see "Changing the cams").
With spreader L at the extreme right end of its travel, make sure the fifth spreader's
eye on spreader M is aligned with the center of the left end needle.
< Note >
Before installing new cams, be sure to grease the cam
grooves. Never loosen screws I and J. Otherwise the
timing of spreaders is changed.
