SINGER 251 - Manual (Page 36)

36
TO REMOVE AND REPLACE ARM SIDE SHIELD WICK, NEEDLE BAR WICK
AND NEEDLE BAR CONNECTING STUD WICK
(See Fig. 54)
Arm side shield wick may be remdved, after re­
moving face plate and two screws U3. Lift arm side
shield V3 up and out of machine.
When replacing arm side shield wick, make sure
that lower end of wick drops into oil pool beneath
needle bar crank and that the two upper wick loops
are located as close as possible to the needle bearings
at F3, Fig. 55 without touching them. Then replace and
securely tighten screws U3.
To remove needle bar wick and connecting stud
wick, move take-up lever H3, so that it does not inter­
fere with removal of oil guard W2. Then remove face
plate and screw R2; lift take-up oil guard W2, with
the two wicks, up and out of machine.
When replacing the oil guard W2, which carries
the needle bar wick and connecting stud wick, make
sure that lower end of the stud wick drops into oil
pool behind lower needle bar bushing and that the
loop of needle bar wick is placed behind the needle
bar, as shown in Fig. 54.
Fig. 54. Arm Side Shield Wick,
Needle Bcir Wick and Connecting
Stud Wick
TO REMOVE OIL WICK HOLDER
(See Fig. 55)
Oil wick holder includes two oil wick leaders (see
Fig. 56) and an oil wick for the needle bar link and for
the two sets of needle bearings in the thread take-up
as shown in Fig. 55. It is removed in the following
manner:—
Remove face plate, needle bar and upper needle
bar bushing from the machine, as instructed on
page 33.
2. Remove upper section
structed on page 33.
of presser bar, as in-
3. Remove holder screw W3.
Pulling gently, draw entire oil wick holder as­
sembly out of the head of the machine.
Fig. 55. Wick Loops for Needle
Bar Link and Thread Take-up