Singer Class 269w - Page 9

Fig. 28. Tripping Mechanism
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Fig, 30. Correct Belt Tension
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TO ADJUST THE STARTING LEVER
Starting lever F3, Fig. 27, page 8 carries en-
gaging arm K2, Fig. 31 and all the recoil absorbing
mechanism.
With the bell crank pawl A2, in catch C3, Fig.
28, there should be approximately 1/32 inch space
between high point of camming face of fixed pulley
N3, and interlocking arm K3, as shown in Fig. 27.
To obtain this setting, loosen swivel lock nut
G3, Fig. 29 and remove hinge screw H3. Turn swivel
in or out as required. (Each full turn of swivel
equals approximately 1/32 inch of adjustment.)
Replace hinge screw H3 and tighten swivel lock
nut G3.
TO ADJUST "V" BELT
Keep belt tension only heavy enough to drive
machine without slipping. Excessive belt tension
will cause erratic stopping, shortening life of belt
and loose pulley bearing.
With machine in an idle position, adjust belt
tightener, which carries motor, to obtain a distance
of 1-7/8 inches when belt is compressed as shown
in
Fig. 30.
TO ADJUST THE ENGAGING ARM
Engaging arm K2, Fig. 31 drives idler pulley
N2 forward and forces "V" belt M2 forward and up
the face of fixed pulley, thereby driving the machine.
With machine in operation, "V" belt M2 must
raise off bottom of idler pulley 1/32 inch, as shown
in
Fig. 31.
To adjust, loosen pinch screw W2 and tap arm
K2 in against engaging button Y2 until "V" belt
raises 1/32 inch when machine is operated. Tighten
screw W2.
WARNING· A raise greater than 1/32 inch will
cause excessive belt tension.
N2
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Fig. 31. Adjust i ng the Engaging Arm
From the library of: Superior Sewing Machine & Supply LLC