Adjusting The Thread Trimmer Mechanism Components; Adjusting The Position Of The Thread Trimmer Cam; Adjusting The Thread Trimmer Link Stopper Screw - JUKI MOL-254 Engineer's Manual

(3) Adjusting the thread trimmer mechanism components

1)

Adjusting the position of the thread trimmer cam

Position in the main shaft direction : adjust clearance
and the main shaft thrust collar to 0.5 mm.
Position in the direction of rotation : Align the engraved marker dot on the main shaft with the engraved
marker line on the thread trimmer cam.
Thread trimmer cam
2)

Adjusting the thread trimmer link stopper screw

Make sure that there is a clearance between thread trimmer roller
in the thread trimmer cam and the roller smoothly enters the groove when pressing cam follower
the direction of the arrow mark (←) at the supporting run section (range A) of the thread trimmer cam.
Thread trimmer cam
Standard Adjustment
Engraved marker line
Main shaft
Engraved marker dot
−
provided between the thread trimmer cam
Main shaft thrust collar
and both end faces of the groove
Thread trimmer
cam
1/2 turn after contact
15
−
Thread trimmer cam
Main shaft
0.5 mm
Groove in thread
trimmer cam
in