Threading The Upper Thread - Singer HEAVY DUTY 4423 Manual

Threading the Upper Thread

• Start by raising the needle to its highest point (1), and continue turning the
handwheel* counterclockwise until the needle just slightly begins to descend.
Never turn the handwheel away from you as this may cause the timing to be
disrupted. Always turn the handwheel counterclockwise (towards you).You
must raise the presser foot to release the tension discs.
• For safety, it is strongly suggested you turn off the power before threading.
• Lift up the spool pin. Place the spool of thread on the holder with the thread
coming off the spool from the back as shown and place appropriate spool
holder next to the spool. For small thread spools, place small side of spool
holder next to spool. (2)
• Draw thread from spool through the upper thread guide (3) and pulling thread
through pre-tension spring as illustrated. (4)
• Thread tension module by leading thread down right channel. (5)
• During this process it is helpful to hold the thread between the spool and
thread guide, as this will help to seat the thread between the tension discs.
• At the top of this movement pass thread from right to left through the slotted
eye of the take-up lever and then downwards again. (6)
• Now pass the thread behind the horizontal thread guide, and then behind the
thin wire needle clamp guide (7) and then down to the needle which should be
threaded from front to back.
• Pull about 6 - 8 inches of thread under the presser foot to the rear beyond the
needle eye. Trim thread to length with built-in thread cutter. (8)
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