Pfaff 141 User Manual

13. Cleaning the sewing hook
The sewing hook Is the most essential part of the whole machine and. for this reason,
should be cleaned thoroughly from time to time. To do this, raise the needle bar to its
highest point, open the bed slide and remove the bobbin case with the bobbin. Take
out the three screws Ei, Ej and Es (Fig. 6) and strip the hook gib. Turn the balance
wheel until point S of the bobbin case base is about to enter groove N of the hook
(Fig. 14). When in this position, the
bobbin case base can be tipped out easily by seiz
ing center stud Z with thumb and forefinger while turning the balance wheel back and
forth lightly.
Clean hook and hook raceway thoroughly with kerosene. If the cotton wool in slot 0
(Fig. 14) should have become matted, it should be replaced and the new cotton wool be
soaked with oil.
Fig. 14
To clean the parts in the vicinity of the sewing hook, take out set screw 20 (Fig. 4) and
pull the hook up out of the machine. When the hook is replaced, pin 19 (Fig. 4) ensures
proper positioning and eliminates the need of retiming the hook.
In replacing the bobbin case base, make sure that position finger F (Fig. 14) enters slot
P on the underside of the needle plate. Replace hook gib and tighten screws Ei -
Ej. Put a drop of oil Into the hook raceway, replace the bobbin case with the bobbin
and close latch B (Fig. 6).
Never run the machine with the needle plate removed as this may result in damage to
the bobbin case or the bobbin case opener.
The above Instructions also apply to all two-needle sewing machines covered by this In
struction Book.
From the library of: Superior Sewing Machine & Supply LLC

Pfaff 141 Specifications

General

Brand	Pfaff
Model	141
Category	Sewing Machine
Language	English