Table of Contents
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Table of Contents
Related Manuals for Singer HA-1
Summary of Contents for Singer HA-1
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Page 1: Instruction Manual
Instruction Manual For generic HA-1 15 class Sewing Machines... - Page 2 HA-1 machines have been sold with hundreds of dif- ferent nameplates, but are all essentially the same. Most of the HA-1 machines have been built in the far eastern countries since the end of WW2. There have been numerous modifications, but the basic machine has remained so similar that this instruction book will cover the important points for many machines.
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Page 3: Needles And Thread
TO REPLACE THE NEEDLE To replace the needle, raise the needle bar to its highest point by turning the hand wheel (Fig. 3) TOWARD YOU by hand. Loosen the needle clamp screw (A) on the right hand side, and the needle clamp will open, allowing the old needle to slip out. -
Page 4: Removing The Bobbin Case
THE BOBBIN CASE Important In the follow- ing opera- tions, the nee- dle must al- ways be above the sur- face of the machine. In raising the needle, al- ways turn the hand wheel toward you. REMOVING THE BOBBIN CASE Slide or lift the access plate. -
Page 5: Winding The Bobbin
WINDING THE BOBBIN Note: This machine uses standard 15 class bobbins. The bobbin can also be wound while the machine is in operation by not releasing the stop motion knob as described be- low, in which case, machine and bobbin winder will operate at the same time. -
Page 6: To Thread The Bobbin Case
TO THREAD THE BOBBIN CASE Hold the bobbin case between the left thumb and forefinger with the slot up. With 4 or 5 inches of thread trailing in the direction shown… ...insert the bobbin into the bob- bin case and pull the trailing thread back into the slot, down and to the left, until it snaps into the “delivery eye”... -
Page 7: Upper Threading
UPPER THREADING 1– Place a spool of thread on spool pin (A). 2– Bring the thread from the back of the spool, (so that the notch in the spool is up) and lead it through thread guide (B). 3- Run the thread down, between, and under the tension disks (C) from back to front. -
Page 8: To Prepare For Sewing
TO PREPARE FOR SEWING Thread machine as per pages 6 & 7. Pick up the bobbin thread by holding the loose end of the needle thread with your left hand while turning the hand wheel toward you until the needle moves down and up and the thread take up lever has reached its highest position. -
Page 9: To Start Sewing
TO START SEWING With the needle raised and the threads drawn back at least 4 inches through the toes of the presser foot, place the material to be sewn beneath the presser foot and lower the presser foot lift lever. Turn the hand wheel toward you until the nee- dle enters the material. -
Page 10: Other Features
PRESSER FEET & ATTACHMENTS Your HA-1 is equipped with a standard low shank mounting system. With this arrangement, it is easy to find almost any type of presser foot or attachment for your sewing needs. -
Page 11: Stitch Length Regulation
STITCH LENGTH REGULATION Regulating the length of the stitch: The machine can be adjusted to from six to thirty stitches per inch, as in- dicated by the numbers on the stitch indicator plate. Changing the length of the stitch is accomplished as follows: Loosen the stitch length stop control (B, Fig. - Page 12 TENSIONS For ideal stitching, the ten- sion on the upper and lower threads should be equal, and just sufficiently strong to lock both threads in the cen- ter of the work. (Fig. 13) If the upper tension is too tight or the lower too loose, the needle thread will lay straight on the upper surface.
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Page 13: Oiling The Machine
OILING THE MACHINE Fig. 17 Your HA-1 sewing machine never needs grease. All moving parts which come in contact with others must be covered with a thin film of oil, and should not be allowed to become dry. Oil, when necessary, should be applied at the points indicated by the arrows in Fig. -
Page 14: Sewing Hints
SEWING HINTS See that the presser foot screw is securely tightened. It is dangerous for the foot to vibrate loose while you are operat- ing the machine. Skipped stitches may be caused by a bent or blunt needle, by incorrect positioning of the needle, the wrong size of nee- dle, or by thread that is too heavy for the selected needle.