Pfaff select 1520 - Adjustment of the Gears in Relation to each Other

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22. Adjustment of the gears in relation to each other
Requirement:
The two gears must not have any play, must not bind, and must be parallel to each other.
Check:
z Check for free running by turning the handwheel, check for lack of play by turning the gears back and
forth and carry out a visual check of parallel configuration.
Adjustment:
z Loosen the three screws 94, 95 and 96 and adjust the two gears 97 and 98 so that they are parallel
and have no play (fig. 43).
z Tighten the three screws.
Cross-check:
z As described under "Check".
z Firmly tighten screws 94, 95 and 96.
Note:
z The feed regulator cranks must now be adjusted according to section 10 of this manual.