Singer SRP-50 Instruction Book page 9

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7. With Knitter Clamps " L", secure foot of Push-up Cams
"M" on table.
DO NOT USE TOO MUCH FORCE.
8. Raise both Push-up Cams in arrow direction.
9. On back of left side of Ribber, insert Swing Handle
shaft "N" from underneath into Swing Bearing "0".
Push Handle in a twisting manner until you hear a click
with a slight jerk.
Ensure that Pointer "P" on Swing Indicator
"Q"
moves
when turning Handle to the left and the right.
10. Set Half-Pitch Lever "A" to P (left side).
By turning Handle, set Indicator Pointer "P" at 5 on
upper scale P.
CHECK POINT
When joining Ribber to Knitter has been finished, check
the positioning of Ribber against Knitter by pushing up
several needles on both beds up. The needles on both beds
must confront with each other as shown.
If
not, loosen Ribber Joiner Screws and Clamps securing
Push-up Cams, then pat lightly either end of Ribber. Then
fasten them again.
The needles pushed up must be back to original position.