Pfaff 1540 - Manual (Page 61)

59
30a. Adjustment of bevel gears
Requirement:
The bevel gears must move easily and without play.
Adjustment:
z Push bevel gear with lifting eccentric to the left until it rests on bevel gear 38 without play.
z Tighten screw 37 on the surface of the drive shaft.
Check:
z As described under "Requirement".