Singer Quantumlock 14T957DC Detailed Threading Manual

2 / 3 / 4 / 5 – thread sergers

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Page 1 DETAILED THREADING GUIDE - Quantumlock® 14T967DC & 14T957DC 2 / 3 / 4 / 5 – THREAD SERGERS THREADING INFORMATION FOR A 4-THREAD ULTRA STRETCH MOCK SAFETY STITCH ... 2 THREADIING INFORMATION FOR A NARROW 5-THREAD SAFETY STITCH...11 THREADING INFORMATION FOR A TRIPLE COVER STITCH ...25 HOW TO DISENGAGE THE MOVABLE UPPER KNIFE ...46...
Page 2 THREADING INFORMATION FOR A 4-THREAD ULTRA STRETCH MOCK SAFETY STITCH Threading the Green Upper Looper: Top Cover Thread Guide. Thread the top cover thread guide by slipping the thread under the guide from right to left, and then pull the thread under the small round disk from the right side.
Page 3 Using tweezers slip the thread into the next three guides marked with small green dots. Thread the guide that looks like a little pigtail and then thread through the eye of the looper as shown. Pull the thread tail to the back of the serger approximately 4 to 6 inches.
Page 4 Thread Red Lower Looper: Top Cover Thread Guide Thread the top cover thread guide by slipping the thread under the guide from right to left, and then pull the thread under the small round disk from the right side. Lay thread through Red tension disk while holding the thread securely with both hands.
Page 5 Tugging slightly on the thread tail at the back of the serger, push the threader lever all the way up to hook thread into the eye at the back of the looper. Threading Blue Overedge Stitch Needle: Top Cover Thread Guide Thread the top cover thread guide by slipping the thread under the guide from right to left, and then pull the thread under the small round disk from the right side.
Page 6 Using tweezers slip the thread into the slot at the back of the thread guide, and then into the next three guides marked with the small red dots. Thread the eye of the looper as shown, making sure that the thread is positioned in the “V”...
Page 7 Lay thread through Blue tension disk while holding the thread securely with both hands. Next slip into guide directly below the tension from right to left. Slip the thread into the third slot closest to the back and then up and over the take up lever slot.
Page 8 Slip the thread into the third slot on the right next to the take-up lever, then into the third slot on the right in the guides just above the needle clamp. Next slip the thread behind the metal guide and then into the eye of the needle in B position, and then under what looks like a bridge at the back of the foot.
Page 9 Lay thread through Orange tension disk, while holding the thread securely with both hands. Next slip into guide directly below the tension from right to left. Slip the thread into the center slot and then up and over the take-up lever slot.
Page 10 Slip the thread into the center slot next to the take-up lever, then into the center slot in the guides just above the needle clamp. Next slip the thread behind the metal guide and then into the eye of the needle in A position, and then under what looks like a bridge at the back of the foot.
Page 11 THREADING INFORMATION FOR A NARROW 5 THREAD SAFETY STITCH Threading the Green Upper Looper: Thread the top cover thread guide by slipping the thread under the guide from right to left, and then pull the thread under the small round disk from the right side.
Page 12 Lay thread through Green tension disk, while holding the thread securely with both hands. Next slip into guide directly below the tension from right to left. Using tweezers slip the thread into the next three guides marked with the small green dots.
Page 13 Thread the guide that looks like a little pigtail and then thread through the eye of the looper as shown. Pull the thread tail to the back of the serger approximately 4 to 6 inches.
Page 14 Threading Red Lower Looper: Thread the top thread guide by slipping the thread under the guide from right to left, and then pull the thread under the small round disk from the right side. Lay the thread through Red tension disk while holding the thread securely with both hands.
Page 15 Using tweezers slip the thread into the slot at the back of the thread guide, and then into the next three guides marked with the small red dots. Thread the eye of the looper as shown, making sure that the thread is positioned in the “V”...
Page 16 Tugging slightly on the thread tail at the back of the serger, push threader lever all the way up to hook thread into the eye at the back of the looper. Threading Brown Chain Stitch Looper: Top Cover Thread Guide Thread the top cover thread guide by slipping the thread under the guide from right to left, and then pull the thread under the small round disk from the right side.
Page 17 Lay thread through Brown tension disk, while holding the thread securely with both hands. Next slip into guide directly below the tension from right to left.
Page 18 Slip thread through front slot of threading guide. Using tweezers thread the next 4 guides identified with a small brown dot.
Page 19 Using the tweezers thread the last thread guide that is located on the left just below the looper. Next thread the brown looper eye from front to back, pulling thread over the top of the red looper, then pull the thread tail to the back of the serger 4 to 6 inches.
Page 20 Threading Blue Overedge Stitch Needle: Top Cover Thread Guide Thread the top cover thread guide by slipping the thread under the guide from right to left, and then pull the thread under the small round disk from the right side. Lay thread through Blue tension disk, while holding the thread securely with both hands.
Page 21 Slip the thread into the third slot closest to the back and then up and over the take-up lever slot. Slip the thread into the third slot on the right next to the take-up lever, then into the third slot on the right in the guides just above the needle clamp. Next slip the thread behind the metal guide and then into the eye of the needle in (B) position, and then under what looks like a bridge at the back of the foot.
Page 22 Threading Orange Chain Stitch Needle: Top Cover Thread Guide Thread the top cover thread guide by slipping the thread under the guide from right to left, and then pull the thread under the small round disk from the right side. Lay thread through Orange tension disk, while holding the thread securely with both hands.
Page 23 Slip the thread into the center slot and then up and over the take-up lever slot. Slip the thread into the center slot next to the take-up lever, then into the center slot in the guides just above the needle clamp. Next slip the thread in front of the metal guide and then into the eye of the needle in (D) position, through the opening in the foot and then pull the thread tail to the back of the serger.
Page 24 THREADING TIPS FOR 5-THREAD SAFETY STITCH: • Be sure to follow the threading sequence outlined above. • Make sure needles are set-up in positions D, and B for 5-thread safety stitch. This is very well illustrated in your manual on page 15. •...
Page 25 THREADING INFORMATION FOR A TRIPLE COVER STITCH Disengage Moveable Upper Knife: Pull the holder (screw) as far as it will go to the right, and swing (turn) the knife down (counter-clockwise) until it clicks into resting position. To re-engage knife, pull the holder out to the right and swing the knife up (clockwise) until it clicks into working position.)
Page 26: Disengage The Upper Looper
Disengage the Upper Looper: In order to attach the Cover Plate, you must first disengage the upper looper. Turn handwheel towards you until the rectangular white knob is as far right at possible.
Page 27 To lower looper push the knob all the way to the left and then push upwards. (To re-engage the looper push the knob all the way to the left and push it down. Turn your handwheel toward you to raise the looper.)
Page 28 Threading The Green Cover Stitch Needle: Top Cover Thread Guide Thread the top cover thread by slipping the thread under the guide from right to left, and then pull the thread under the small round disk from the right side.
Page 29 Lay thread through Green tension disk, while holding the thread securely with both hands. Next slip into guide directly below the tension from right to left. Slip the thread into the third slot at the back and then into the take-up lever slot.
Page 30 Slip the thread into the third slot closest to the take-up lever. Slip thread through third slot on the right; next slip it in front of the thread guide and then into the eye of the needle (E) on the right. Finally thread the tail of the thread through the opening in the foot directly below the needle;...
Page 31 Threading Blue Cover Stitch Needle: Top Cover Thread Guide Thread the top cover guide by slipping the thread under the guide from right to left, and then pull the thread under the small round disk from the right side.
Page 33 Slip the thread into the center slot. Slip thread through center slot; next slip it in front of the thread guide and then into the eye of the center (D) needle. Finally thread the tail of the thread through the opening in the foot directly below the needle, pull thread under the foot and to the back of the serger.
Page 34 Threading Orange Cover Stitch Needle: Top Cover Thread Guide Orange Needle Thread the top cover thread guide by slipping the thread under the guide from right to left, and then pull the thread under the small round disk from the right side.
Page 35 Lay thread through Orange tension disk, while holding the thread securely with both hands. Next slip into guide directly below the tension from right to left. Slip thread into the first slot and then into the take-up lever slot.
Page 36 Slip the thread into the first slot. Slip thread through first slot on the left; next slip it in front of the thread guide and then into the eye of the (C) needle on the left. Finally thread the tail of the thread through the opening in the foot directly below the needle, pull thread under the foot and to the back of the serger.
Page 37 Threading Red Lower Looper: Top Cover Thread Guide Thread the top cover thread guide by slipping the thread under the guide from the right to left, and then pull the thread under the small round disk from the right side.
Page 38 Lay thread through Red tension disk while holding the thread securely with both hands. Next slip into guide directly below the tension from right to left. Using tweezers slip the thread into the slot at the back of the thread guide, and then into the next 3 guides marked with small red dots.
Page 39 Thread the eye of the lower looper as shown, making sure that the thread is positioned in the V cut out in front of the looper threader. Pull the thread tail to the back of the serger approximately 4 to 6 inches. Tugging slightly on the thread tail at the back of the serger, push threader lever all the way up and to the left to hook the thread into the eye at the back of the looper.
Page 40 Threading Brown Cover Stitch Looper: Top Cover Thread Guide Thread the top cover guide by slipping the thread under the guide from the right to the left, and then pull the thread under the small round disk from the right side.
Page 41 Lay thread through Brown tension disk while holding the thread securely with both hands. Next slip into guide directly below the tension from right to left. Slip thread through front slot of thread guide.
Page 42 Using the tweezers thread the next 4 guides identified with a small brown dot. Using the tweezers thread the last thread guide that is located on the left just below the looper. Next thread the brown looper eye from front to back, pulling the thread over the top of the red looper, then pull the thread tail to the back of the serger approximately 4 to 6 inches.
Page 43 Tugging slightly on the thread tail at the back of the serger, push threader lever all the way up and to the left to hook the thread into the eye at the back of the looper.
Page 44 Attaching Cover Stitch Plate: Remove the knife cover (overedge plate) by gently raising the lever as shown and pulling the cover towards you. Slip the Cover Stitch Plate onto the front cover by raising the lever as shown and pushing the plate towards the machine until it snaps into place.
Page 45 In order for the Cover Stitch Plate to sit properly, you must set the seam width finger to the “R” position. TIPS FOR TRIPLE COVER STITCH • Be sure to follow the threading sequence outlined above. • Make sure needles are set-up in positions C, D, and E for the Triple Cover Stitch.
Page 46 HOW TO DISENGAGE THE MOVABLE UPPER KNIFE Disengage Movable Upper Knife: Pull the holder (screw) as far as it will go to the right, and swing the knife down until it clicks into the resting position. (To re-engage the knife, pull the holder to the right and swing the knife up until it clicks into the working position.)
Page 47 HOW TO CONVERT THE GREEN UPPER LOOPER To produce the following stitches you must convert the upper looper to a spreader. • 2-Thread Wrapped Edge Overlock • 2-Thread Overedge • 3-Thread Ultra Stretch Mock Safety Stitch • 4-Thread Safety Stitch Push white spreader lever up so that spreader slips into the eye of the looper.
Page 48 HOW TO DISENGAGE UPPER (GREEN) LOOPER Turn handwheel towards you until the white rectangular knob is as far to the right as possible. To lower the looper push the knob all the way to the left and then push it up. (To re-engage the looper push the knob all the way to the left and push it down.

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Singer Quantumlock 14T957DC Detailed Threading Manual

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Page 26: Disengage The Upper Looper

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