ZOJE ZJ9700, Operation Manual, Page: 31 / 86

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13.2Adjusting the thread trimming equipment (Round knife)
1.Adjusting the position of the thread trimmng cam.
If you run the handwheel of the machine,the needle bar goes from the bottom up to 5mm,then the
thread trimming solenoid
④
is pressed to impel the roller ball touchs to the concave of the thread
trimming cam
①
,Then use the position screw
②
to tighten it in casual.And then replace the thread
trimming solenoid ④ ,while loose the screw ② to adjust the cam ① ,the clearance of the end plane
between the cam and thread trimming driving shaft is 0.5mm.(Use the torion with 40kg/cm to tighten
the position screw ② )
2.Adjusting the position of the counter knife and moving knife.
When the head of the thead trimming driving shaft ③ exceeds the cam, the mesh between the front
plane of the counter knife
⑧
and the edge of the moving knife
⑦
is0.2-0.5mm.If they are not
meshed,moves the knife shaft crack rod
⑥
before the thread trimming driving shaft exceeded the cam
① ,the front plane of the counter knife ⑧ and the edge of the moving knife is meshed,then tighten
the screw ⑤ .