SINGER 112 - Manual (Page 28)

Zigzag Sewing Machine Instruction Manual and Parts List
Knee operating presser foot lift
Bell cranks '1' and '2' shown in Figure 34 are fastened
to tiio underside of the bed bell crank 'V is used for
lifting and lowering the presser loot with knee, and
bell crank '2' is used for controlling the stitch width .
To raise or lower the presser foot with knee, loosen
screw '4' holding the knee lifter shaft arm '3' and
move knee lifter shaft arm 3' just under the bell crank
'1', and firmly tighten screw '4',
Loosen the lock nut holding screw '7' and turn screw
'7' as required, so that the bent end '6' of knee lifter
shaft arm '3' will be almost horizontal when knee
lifter knee plate '5' is pushed as far as it will go in the
direction indicated with arrow 'A', then firmly tighten
the lock nut.
With knee lifter shaft arm '3' set in position as
described above, loosen screw '8' and move knee
lifter shaft arm '3' up or down as required, so that
height '10' from its bent end '6' to bracket '9' is 64
mm.
Raise presser foot '12' with presser foot litter
'11'.Then loosen the lock nut holding screw '14' and
turn screw '14' as required, so that knee lifter knee
plate '5' when pushed in the direction indicated with
arrow 'B', will stop at a point (presser foot '12' raised
approx. 9 mm from throat plate '13' surface) where
presser bar lifter '11' will drop down from its raised
position when presser bat is lifted a little higher than
its normal up position Then firmly tighten the lock
nut.
When knee lifter knee plate '5' is pushed in the
direction indicated with arrow 'B', the presser foot
'12' will rise and when knee plate '5' is released,
presser foot '12' will be lowered.
Figure 34
Caution;
• Switch off the machine.
• Set sewing head uprignv cgain using both hands.
• Danger of crushing betwee»' Scwing head and table top
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