Pfaff 433 - Page 37

When stripping the link take-up and needle bar assembly, take care that
none of the tiny bearing needles gets lost. Each bearing contains 18 needles.
To facilitate insertion of the needles, the bearings are grease-packed so
that the needles will be held in position by the grease. Use a poir of
tweezers to insert the needles into the bearings.
Reverse the above procedure and use proper caution when replacing the
toke-up end needle bar assembly in the head of the machine. It is advisable
to take a thin wire whose one end is bent into a hook to lace the packing
through the hollow hinge stud of the toke-up link. When fastening this
packing to the needle bar top bushing (Photos 20 and 30), moke sure that
it clears the presser bar spring as, otherwise, the excess oil which would
accumulote on the spring would seep through the presser bar bearing and
soil the work.
Photo 30
35
From the library of: Superior Sewing Machine & Supply LLC