Pfaff 938 - Adjusting the Basic Machine; Balancing Weight

Adjustment
12 - 3
81
-
060
2
1
Fig. 12 - 02
● Bring the needle bar to b.d.c.
● Adjust the balance weight 1 (screw 2) in accordance with the requirement.
12.05 Adjusting the basic machine
12.05.01 Balancing weight
Requirement
With the needle bar at bdc the largest eccentricity of the balancing weight 1 must be
pointing upwards.