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11. Using wrench 545945, through same hole and turning machine pulley as re-
quired, tighten hexagon head screw U2 lightly.
12. Loosen set screw T2.
13. Securely tighten clamping screw U2,
14. Securely tighten set screw T2.
15. Push hinge stud Y2 fully into machine casting and securely tighten set
screw W2.
16. Turn machine pulley slowly, by hand, at least one complete revolution;
testing take-up for binding, end shake and noise. If binding occurs, re-
check clearance between take-up and wearing plate C3 and between hinge
stud Y2 and machine casting.
17. Replace guide bracket G in head of machine, as shown in Fig. 21.
18. Replace presser bar pressure regulating thumb screw R2, Fig. 20, page 13.
19. Replace and adjust upper needle bar bushing and needle bar with their
accessories, as instructed on pages 2 and 13.
20. Replace and securely tighten arm hole plug S2.
21. Replace the face plate as instructed on page 2.
TO REMOVE AND REPLACE ARM SIDE SHIELD WICK, NEEDLE BAR WICK
AND NEEDLE BAR CONNECTING STUD WICK (See Fig. 23)
Arm side shield wick may be removed, after
removing the face plate and the screw F3. Lift
arm side shield G3 up and out of machine.
When replacing arm side shield wick, make
sure that lower end of wick drops into oil pool
bereath needle bar crank and that the two upper
wick loops are located as close as possible to
the needle bearings at B3, Fig. 24 without
touching them. Also make sure that the edge of
arm side shield G3 is pressed firmly against
the side wall of the arm to ensure proper
position. Then replace and securely tighten
screw F3.
To remove needle bar wick and connecting
stud wick, move take-up lever A3, so that it
does not interfere with removal of oil guard P2.
Then remove face plate and screw M2; lift take-up
oil guard P2, with the top wicks, up and out of
machine.
When replacing the oil guard P2, 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. 23.
F3
G3
SIDE
SHIELD
WICK
- 16 -
M2
A3
P2
NEEDLE
BAR
WICK
STUD
WICK
Fig. 23
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