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11
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ADJUSTING THE TOP COVER THREAD TRIMMER
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11----1 Relationship between the position of the movable knife and the stationary knife
1 Relationship between the position of the movable knife and the stationary knife
1 Relationship between the position of the movable knife and the stationary knife
1 Relationship between the position of the movable knife and the stationary knife
When the movable knife retracts all the way, align hook point E of the movable knife with
hook point F of the stationary knife. To make this
adjustment, loosen screws A for stoppers B on the
pneumatic/electric top cover thread trimmer. On the
pneumatic/electric top cover thread trimmer, screws A
should be centered in the slots of stoppers B. There
should be a clearance of approximately 14mm between
cylinder connection block D and end C of the cylinder.
To make a fine height adjustment on the movable knife,
refer to 11-6.
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11----2 Adjusting the top cover thread clamp spring
2 Adjusting the top cover thread clamp spring
2 Adjusting the top cover thread clamp spring
2 Adjusting the top cover thread clamp spring
Top cover thread clamp spring G should protrude
approximately 3mm from end F of the stationary knife.
Loosen screws I and adjust spring G while checking
spring G is parallel with the stationary knife.
Spring G holds the top cover thread after it is cut.
To adjust the pressure of the spring, turn adjusting
screw J. To increase the pressure, turn it clockwise.
To decrease the pressure, turn it counterclockwise.
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11
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11----3 Adjusting the movable knife pressure spring
3 Adjusting the movable knife pressure spring
3 Adjusting the movable knife pressure spring
3 Adjusting the movable knife pressure spring
Movable knife pressure spring H should retracts
approximately 2mm from end F of the stationary knife.
Loosen screws I and adjust spring H while checking
spring H is parallel with the stationary knife.
< Note >
Excessive pressure causes needle breakage.
