hobbylock 4764 Operating Manual
This household sewing machine is designed to comply with IEC/EN 60335-2-28 and UL1594 IMPORTANT SAFETY INSTRUCTIONS When using an electrical appliance, basic safety precautions should always be followed, including the following: Read all instructions before using this household sewing machine. DANGER - To reduce the risk of electric shock: • A sewing machine should never be left unattended when plugged in.
Table of contents 1 Summary ............................................................................................4 1-1 1-2 1-3 1-4 1-5 1-6 1-7 2 Parts of hobbylock 4764 ................................................................................... 4 Accessories ........................................................................................................ 5 Connecting the foot control and the electrical connection ......................... 6 Setting telescopic thread stand .........
6 7 8 Sewing problems and their solutions ...........................................28 Table of sewing fabrics, needles and machine settings ...............29 Specifications ..................................................................................30 Index ................................................................................................
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1-2 Accessories 1 2 9 3 4 5 8 10 6 11 7 13 12 1 2 3 4 5 6 7 8 9 10 11 Thread unreeling discs (4 pcs.
1-3 Connecting the foot control and the electrical connection Connect the foot control and the electrical connection. Before plugging your machine, be sure that the voltage is same as that of your machine. (indicated on the plate on the back of the machine). Note: Specifications vary from country to country. Turn on the power and light switch. Always turn off the switch and unplug the machine when not in use; changing needles, presser foot, or needle plate; or servicing/ cleaning the machine.
1-4 Setting telescopic thread stand Extend the telescopic thread stand to its full height, then turn until it locks against the stop. 1-5 Opening and closing front cover and side cover How to open the front cover Push the cover to the right as far as it will go and pull it downwards. How to close the front cover Pull the cover upwards and slide to the left until it locks. The front cover has a safety switch and the machine will not sew when the front cover is not closed all the way.
1-6 Changing the needle Replace the needles in the following order: Unplug the machine. 1. Bring needles to its highest position by turning the handwheel towards you. 2. Loosen the needle clamp screw and remove two needles together. 3. With the flat side away from you, insert two new needles all the way up into the groove of the needle bar. Use standard home sewing machine needles size #11 (#75) or #14(#90). 1-7 Changing presser foot Turn the machine off. 1. Raise the presser foot. 2.
(D) 1 1 (C) 2 3 5 6 1 (A) 1 (B) 2 Draw thread from spool and pass it through guide (1) of the thread stand and then, in order, through guides (2)-(8) (Fig. A). 3 4 1. Upper looper threading (A) Bring the upper looper to its lowest position by turning the handwheel towards you. 4 7 8 Thread the eye of upper looper (9) using tweezers. Cut the thread leaving about 10 cm (4”) of thread tail. 5 9 2. Lower looper threading (B) 10 Open the front cover and the side cover.
3. Right needle threading (C) For easy threading, disengage the moveable blade by turning it upwards. Push the upper blade holder screw (A) with the forefinger of your left hand and turn the right end of the holder (B) with your right fingers in the direction of arrow (Fig. C). A Take the thread drawn from spool, and pass it through thread guides (1)-(7) (Fig. A). Then thread the eye of right needle (8) from front to back using tweezers. Cut the thread leaving about 10 cm (4”) of thread tail. 4.
2. Raise the presser foot. 3. Set tensions to 0 so that the thread knot can pass through the guides smoothly. Draw out the looper thread until the thread knot comes to about 10 cm (4”) past the presser foot. Reset tensions after you have threaded the loopers. 4. When changing the needle thread, cut off the thread knot before it reaches the eye of the needle. This prevents bending or damaging the needle. To make threading easier, use tweezers.
2-3 Test sewing Ensure that the upper blade moves against the lower blade correctly by turning the handwheel slowly towards you. If it is not set correctly, check if there is any fabric or waste thread stuck between the blades. Check all 4 threads wind around the stitch finger of the needle plate. If all 4 threads do not wind around the stitch finger of the needle plate, check and make sure that each thread is threaded correctly.
Beginning and end of sewing 1. Beginning of sewing Place your left hand on the fabric to push it slightly until the edge of the fabric passes the presser foot. 2. End of sewing Make chain stitches at the end of the sewing to prevent the threads from coming undone and to prepare for the next sewing (this is called chaining off). Draw the finished fabric gently backwards and to the left as the machine is operating and make chain stitches. This is called chain stitch sewing.
Presser foot pressure adjustment The presser foot pressure is pre-adjusted for fabrics of medium (standard) thickness. Adjustment is necessary only when you work on very thin or very thick fabrics. Tighten Loosen Accordingly, sew thinner fabrics with less pressure and thicker fabrics with more pressure. Increase or decrease the pressure of the presser foot by turning the adjustment screw in the direction as shown.
Top side 2. When the upper looper thread is unbalanced and lies underneath the fabric: Tighten the thread tension of the upper looper (Dial 3) or loosen the thread tension of the lower looper (Dial 4). Underside Top side 3. When the lower looper thread is unbalanced and appears on the top-side of the fabric: Tighten the thread tension of the lower looper (Dial 4) or loosen the thread tension of the upper looper (Dial 3). Underside Top side 4.
Differential feed adjustment The feed dogs work independently of each other to give perfect results when sewing speciality fabrics. Use differential feed to prevent stretching of knit fabrics and puckering of lightweight fabrics. Differential feed Indicator • “N” indicates the neutral position. Refer to the following chart and test stitch performance on a scrap of fabric you are going to use.
Stitch width adjustment Adjust the stitch width from 4.2 mm to 6.2 mm according to the kind of fabric. Typically, wider stitch widths are used for heavier fabrics. The standard width is 4.5 mm. Open the side cover to adjust the width. • To increase the stitch width, turn the stitch width adjustment dial to a larger number. • To decrease the stitch width, turn the stitch width adjustment dial to a smaller number. This figure shows that the stitch width between the left needle and the edge of the fabric is 4.
Sewing curved seams For inside curves, guide the fabric gently with the trimming line of the fabric under the right front of the presser foot. By applying pressure to the fabric with your left hand, at the same time, apply a little pressure in the opposite direction with your right hand as shown. For outside curves, apply pressure in the opposite direction of the above. 3-2 Setting waste tray Insert the right of the waste tray to the right leg of the machine as illustrated.
1. Removing the right needle: Create a wide 3-thread stitch by using only the left needle and the left thread tension (Dial 1). The differential feed is normally set at “N” (see p. 16). 2. Removing the left needle: Create a narrow 3-thread stitch by using only the right needle and the right thread tension (Dial 2). The differential feed is normally set at “N” (see p. 16). 3-4 2-thread overlock stitch using 1 needle 1. Use 1 needle thread (left needle or right needle) and lower looper thread.
Conversion to 2-thread overlock 1. Open the front cover. Bring the upper looper to its lowest position by turning the handwheel towards you. Put 2-thread overlock convertor on the upper looper. A B C 2. Push the projection (A) of convertor and insert the tip (B) of convertor into the eye (C) of upper looper. Stitch selection table Thread tension Pattern stitches Material (see p.
Top side Thread tension adjustment 1. Correct tension Underside Top side 2. Unbalanced lower looper thread wraps around the back. Tighten the thread tension of the lower looper (Dial 4) or loosen the needle thread tension (Dial 2). Underside Top side 3. Needle thread unbalanced and too loose. Tighten the needle thread tension (Dial 2) or loosen the tension of lower looper thread (Dial 4).
3-5 How to roll hem Top side 3-thread rolled hem Rolled hemming is achieved by adjusting the thread tensions, so that the fabric is overlocked while rolling underneath at 1.5 mm width. This is ideal for lightweight fabrics. 5 1. Underside 1. Remove the left needle (see p. 8). 1 2 2. Change the needle plate for rolled hemming. For rolled hem sewing, use the needle plate marked “B” (the needle plate “A” is for normal sewing). 3. Set the stitch width dial between 4.5 and 5.5 4.
5. The standard thread tensions are as follow: 5 Dial 2: Needle thread .............................. 4-7 Dial 3: Upper looper thread ..................... 4-7 Dial 4: Lower looper thread ..................... 5-8 4 3 2 At the beginning of sewing, gently pull the end of the thread chain to get started. Sew at an even speed with even feeding of the fabric for best results. 2-thread rolled hem 1. Convert to 2-thread overlock (see p. 20). 2.
3-6 Corded overlock Corded overlock can be used to strengthen stitches when joining elastic fabrics such as knits. There are two ways to sew corded overlock. 1. Thread cord through the hole on the front of the foot. Place a slightly wide cord or tape (about 3 mm) under the right needle and start to sew catching cord or tape in stitching. 1 2. To sew a narrow cord, positioning it on the edge of the fabric encased in the overlock stitch.
4. Maintenance 4-1 Replacing the blades The upper blade and lower blade are made of a specially long-lasting steel and will seldom have to be replaced. However, when they do not cut the fabric, even though they are set in the right position, replace them as follow: Unplug the machine. Open the front cover. Lower blade clamp screw Needle plate Align Lower blade Upper blade Needle plate 0.5-1 1-1.5 Lower blade Replacing the lower blade: 1.
4-2 Changing the light bulb Let the light bulb cool down before replacing it to avoid burning your fingers. When the light does not come on even though the power switch is turned on, it is time to change the light bulb. 1. Unplug the machine. 2. Remove the light bulb cover. 3. Change the light bulb. 4. Replace the light bulb cover. Note: The maximum power of the light bulb is 15W.
4-4 Cleaning Unplug the machine. 1. Open the front cover and the side cover (see p. 7). 2. Remove all the dust and lint using the brush provided. 4-5 Storage 1. When the machine is not in use, be sure to unplug the machine. 2. Cover the machine with the vinyl cover to protect from the dust. 3. Store the machine, so it is not exposed to direct sunlight or humidity. 4-6 Servicing Any questions regarding service and/or operation are to be addressed to the store where the machine was purchased.
5. Sewing problems and their solutions If the machine is used under normal conditions and the operating instructions are carefully followed, no difficult or special adjustment is necessary. Following cases are not failure of the machine. Check your machine before you call for service.
6.
7. Specifications Number of threads 4-threads (3-, 2-threads) Number of needles 2 needles (1 needle) Needles Organ HAx1T #11, #14 (SCHMETZ 130/705H #75, #90) Width between two needles 2 mm Stitch width Standard 4.5 mm (Range 4.2-6.2 mm) Stitch length 1 - 4.4 mm Differential feed 0.7 - 2 Maximum sewing speed 1200 RPM Machine dimensions Width 290mm Depth 220mm Height 330mm (Max. 550mm) Weight 7.
8. Index Accessories ...............................................5 Blades, replacing ...................................25 Chaining off / chain stitch.....................13 Cleaning .................................................27 Connection ..............................................6 Cording ..................................................24 Curves.....................................................18 Differential feed....................................16 Fabric types .......................
We reserve the right to change the machine equipment and the assortment of accessories without prior notice, or make modifications to the performance or design. Such modifications, however, will always be to the benefit of the user and the product. Intellectual property PFAFF and hobbylock are registered trademarks or trademarks of VSM Group AB. Please note that on disposal, this product must be safely recycled in accordance with relevant National legislation relating to electrical/ electronic products.
VSM Group AB • SE-561 84 Huskvarna • SWEDEN www.pfaff.
