Adjusting The Basic Machine; Balancing Weight - Pfaff 939 U Instruction Manual

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12

Adjusting the basic machine

.05
12

Balancing weight

.05.01
Requirement
With the needle bar at bdc the largest eccentricity of the balancing weight 1 must be
pointing upwards.
Fig. 12 - 02
● Bring the needle bar to b.d.c.
● Adjust the balance weight 1 (screw 2) in accordance with the requirement.
1
2
Adjustment
12 - 3

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