15. Always unplug this sewing machine from the electrical outlet when removing covers, lubricating, or when making any other adjustments mentioned in this owner’s manual. SAVE THESE INSTRUCTIONS The design and specifications are subject to change without a prior notice. www.aaasewing.com Jem Platinum 720 Owners Manual/ User Guide...
Altering the needle drop position ....... 18 Variety of Straight Stitches and Recommended Feet ........20 Zigzag Stitch ............21 Altering the stitch width ........21 Altering the stitch length ........21 www.aaasewing.com Jem Platinum 720 Owners Manual/ User Guide...
#7 Buttonhole lever #8 Presser foot lifter Setting the Spool Pin Insert the spool pin into the hole as shown. (The spool pin is in the accessory bag.) q Spool pin w Setting hole www.aaasewing.com Jem Platinum 720 Owners Manual/ User Guide...
Extension table w Tab e Slot r Accessory storage Free arm sewing Free arm sewing is useful for darning socks or mending knees, elbows or areas of wear in children’s clothes. www.aaasewing.com Jem Platinum 720 Owners Manual/ User Guide...
If it does not fit fully in the outlet, reverse the plug. If it still does not fit, contact a qualified electrician to install the proper outlet. Do not modify the plug in any way. www.aaasewing.com Jem Platinum 720 Owners Manual/ User Guide...
Keep the foot control free from accumulation of lint, dust and loose cloth. Do not place anything on the foot control. Operating Instructions: Foot controller Model 21249 is for use with sewing machine model JP720. www.aaasewing.com Jem Platinum 720 Owners Manual/ User Guide...
Needle up/down button Press this button to bring the needle up or down. The machine will stop with the needle up or down depending on the needle position determined by this button. www.aaasewing.com Jem Platinum 720 Owners Manual/ User Guide...
Button 11 will select the patterns #11 to #15. !0 Button 16 will select the patterns #16 to #20. NOTE: When selecting the pattern, raise the needle to its highest position. www.aaasewing.com Jem Platinum 720 Owners Manual/ User Guide...
Align the hole in the foot holder with the threaded hole in the presser bar and insert the setscrew through the hole. Tighten the setscrew by turning it clockwise. Hole Threaded hole www.aaasewing.com Jem Platinum 720 Owners Manual/ User Guide...
Needle thread tension is too loose: –if the needle thread appears on the wrong side of the fabric. Tighten the needle thread tension by moving the dial to a higher number. www.aaasewing.com Jem Platinum 720 Owners Manual/ User Guide...
Place a spool of thread on the spool pin with the thread coming off the spool as illustrated. q Spool of thread w Spool pin Press the spool holder firmly against the spool of thread. e Spool holder www.aaasewing.com Jem Platinum 720 Owners Manual/ User Guide...
Insert the additional spool pin into the hole. Place the felt and a spool on the pin. q Additional spool pin w Spool pin felt e Spool pin hole www.aaasewing.com Jem Platinum 720 Owners Manual/ User Guide...
Pull out about 4" (10 cm) of thread to the rear. Reattach the hook cover plate. NOTE: A threading chart is shown on the hook cover plate for your reference. y Threading chart www.aaasewing.com Jem Platinum 720 Owners Manual/ User Guide...
Draw the thread down along the left channel and slip the thread behind the needle bar thread guide from the left. y Needle bar thread guide b Pass the thread through the needle eye from the front. u Needle eye www.aaasewing.com Jem Platinum 720 Owners Manual/ User Guide...
Pull the thread through the needle eye. NOTE: The needle threader can be used with a #11 to #16 needle or a blue tipped needle. Thread size 50 to 90 should also work well. www.aaasewing.com Jem Platinum 720 Owners Manual/ User Guide...
Draw up the needle thread to bring up a loop of the bobbin thread. e Bobbin thread r Needle up/down button c Slide 4" (10 cm) of both threads to the back under the presser foot. www.aaasewing.com Jem Platinum 720 Owners Manual/ User Guide...
When pattern #02 (lock-a-matic stitch) is selected: The machine will sew reverse stitches at the beginning of a seam automatically, and at the end of the seam by pressing the reverse button once. www.aaasewing.com Jem Platinum 720 Owners Manual/ User Guide...
Press the "+" sign to move the needle drop to the right. Press the "–" sign to move the needle drop to the left. q Left needle drop position w Center needle drop position e Right needle drop position www.aaasewing.com Jem Platinum 720 Owners Manual/ User Guide...
Page 21
Lower the foot while pushing in the black button. The foot will be locked in the horizontal position to avoid slipping. The foot will be unlocked after sewing a few stitches. q Black button www.aaasewing.com Jem Platinum 720 Owners Manual/ User Guide...
This stitch is used for topstitching and outline-stitches enhancing the design appearance. #08 Sculpture stitch Presser foot: Satin stitch foot F Thread tension: 3 – 6 The stitch is used for topstitching and outline-stitches enhancing the design appearance. www.aaasewing.com Jem Platinum 720 Owners Manual/ User Guide...
Press the "+" sign to increase the stitch length. Press the "–" sign to decrease the stitch length. w Stitch length NOTE: The stitch length and width can be altered while stitching. www.aaasewing.com Jem Platinum 720 Owners Manual/ User Guide...
This stitch is used to finish a raw edge of synthetics and other stretch fabrics that tend to pucker. Sew along the fabric edge leaving an adequate seam allowance. After sewing, trim the seam allowance close to the stitches. www.aaasewing.com Jem Platinum 720 Owners Manual/ User Guide...
• Make a test buttonhole on an extra piece of the fabric to check your settings. • The preset width of the buttonhole is suitable for ordinary buttons. • Apply an interfacing to stretch or fine fabrics. www.aaasewing.com Jem Platinum 720 Owners Manual/ User Guide...
Page 26
Starting Point NOTE: Make sure there is no gap between the slider and stopper, otherwise the left and right lengths will be different. i Slider o Stopper !0 No gap !1 Sewing gap www.aaasewing.com Jem Platinum 720 Owners Manual/ User Guide...
Page 27
Use an eyelet punch to open a keyhole buttonhole. !3 Pin !4 Seam ripper m When buttonhole sewing is finished, push the buttonhole lever upward as far as it will go. Buttonhole lever www.aaasewing.com Jem Platinum 720 Owners Manual/ User Guide...
Step 3: Right row Step 4: Back bartack and locking stitches at the end The machine will stop automatically. NOTE: A double layer buttonhole can be sewn when the dot is blinking. www.aaasewing.com Jem Platinum 720 Owners Manual/ User Guide...
Pull the left end of the filler cord to tighten it. Thread the end of the cord through a darning needle and draw it to the wrong side of the fabric and cut. www.aaasewing.com Jem Platinum 720 Owners Manual/ User Guide...
You can sew another buttonhole identical to the first one by simply restarting the machine. The buttonhole width and stitch density cannot be altered after the buttonhole is finished. To cut the buttonhole opening, refer to page 25. www.aaasewing.com Jem Platinum 720 Owners Manual/ User Guide...
Cut both threads leaving 8” (20 cm) tails. Pull the bobbin thread to bring the needle thread to the wrong side of the fabric then knot the threads. After sewing is finished, raise the feed dog. www.aaasewing.com Jem Platinum 720 Owners Manual/ User Guide...
1/8" (0.4 cm) margin of fabric. q Lower layer w End of the opening e Zipper teeth r 1/8” (0.4 cm) margin t Upper layer y Opening size u Folded edge www.aaasewing.com Jem Platinum 720 Owners Manual/ User Guide...
Page 33
At end of seam, sew a few stitches in reverse to lock. Once both sides of zipper are sewn, use the seam ripper to open the rest of basting stitch. !5 Basting www.aaasewing.com Jem Platinum 720 Owners Manual/ User Guide...
Distance w Center needle drop position Press the "+" sign to move the needle drop position to the right. Press the "–" sign to move the needle drop position to the left. www.aaasewing.com Jem Platinum 720 Owners Manual/ User Guide...
Thread tension: 1 – 4 Seam the patchwork pieces with straight stitch and press seam allowance open. Sew pattern #09 on the right side of garment centering over the seam line. www.aaasewing.com Jem Platinum 720 Owners Manual/ User Guide...
Secure the threads at the other end. Sew the smocking stitches between the straight seams. Remove the straight stitches by pulling them out. www.aaasewing.com Jem Platinum 720 Owners Manual/ User Guide...
(A) If the pattern is compressed, turn the feed balancing dial in the direction of “+”. (B) If the pattern is drawn out, turn the feed balancing dial in the direction of “—”. www.aaasewing.com Jem Platinum 720 Owners Manual/ User Guide...
Replace the bobbin. Attach the needle plate, inserting the two guide pins into the holes in the needle plate. Tighten the screw firmly with the screwdriver. e Guide holes r Screw www.aaasewing.com Jem Platinum 720 Owners Manual/ User Guide...
It is not abnormal that a faint humming sound is coming from the internal motors. This machine equipped with LED sewing light, which will not burn out and does not need to be replaced. www.aaasewing.com Jem Platinum 720 Owners Manual/ User Guide...
2. Interfacing is not being used with stretch fabrics. Page 23 1. The feed dog is packed with lint. Page 36 Noisy operation 2. Lint has collected in the bobbin holder. Page 36 www.aaasewing.com Jem Platinum 720 Owners Manual/ User Guide...
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