Singer QuantumLock User Manual page 14

5. Continue to thread points 4-8. Slip the thread into the rear slot of the
thread guide . Go over the take up lever
thread into the right slot of the thread guides
8. Before threading the eye of the needle, make sure the thread is
behind the thread guide located on the bottom of the needle clamp.
9. Draw about 4 inches of the thread through the needle eye towards the back
of the machine.
10. Place the thread to the back, under the Presser Foot.
Three-Thread Overlock (narrow) page 13
. Continue by slipping the
and .