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PFAFF hobbylock 4764 Operating Manual

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Operating Manual


Table of Contents

   Summary of Contents for PFAFF hobbylock 4764

  • Page 1 hobbylock 4764 Operating Manual...
  • Page 3: Important Safety Instructions

    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: •...
  • Page 4: Table Of Contents

    Table of contents Summary ....................4 Parts of hobbylock 4764 ................... 4 Accessories ......................5 Connecting the foot control and the electrical connection ......6 Setting telescopic thread stand ............... 7 Opening and closing front cover and side cover ........... 7 Changing the needle ..................
  • Page 5 Specifications ..................30 Index ....................31 Congratulations! Congratulations on purchasing your new Pfaff® hobbylock™ 4764! Your Pfaff hobbylock 4764 will give you professional sewing results! Its ease of use will free your creative energies - turning your ideas into reality will be a joy.
  • Page 6: Summary

    1. Summary 1-1 Parts of hobbylock 4764 Front panel Spool pin Swivel table Presser foot lift Seam length adjustment knob Thread take up lever Standard presser foot Adjustment knob for presser foot Seam width adjustment knob pressure Upper blade Thread guides Front cover Telescopic thread guide Handwheel...
  • Page 7: Accessories

    1-2 Accessories Thread unreeling discs (4 pcs.) Tweezers Machine oil Lower blade Needles # 11 (75) Needles # 14 (90) Screwdrivers Convertor Thread nets Cleaning brush Needle plate for rolled hem Accessory box Waste tray Machine cover...
  • Page 8: Connecting The Foot Control And The Electrical Connection

    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).
  • Page 9: Setting Telescopic Thread Stand

    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.
  • Page 10: Changing The Needle

    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.
  • Page 11 1. Upper looper threading (A) Bring the upper looper to its lowest position by turning the handwheel towards you. Draw thread from spool and pass it through guide (1) of the thread stand and then, in order, through guides (2)-(8) (Fig. A). Thread the eye of upper looper (9) using tweezers.
  • Page 12: Changing Thread

    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.
  • Page 13 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.
  • Page 14: Test Sewing

    2-3 Test sewing Ensure that the upper blade moves against Check all 4 threads wind around the stitch the lower blade correctly by turning the finger of the needle plate. If all 4 threads handwheel slowly towards you. If it is not set do not wind around the stitch finger of the correctly, check if there is any fabric or waste needle plate, check and make sure that...
  • Page 15: Beginning And End Of Sewing

    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).
  • Page 16: Presser Foot Pressure Adjustment

    Presser foot pressure adjustment The presser foot pressure is pre-adjusted for Tighten Loosen fabrics of medium (standard) thickness. Adjustment is necessary only when you work on very thin or very thick fabrics. Accordingly, sew thinner fabrics with less pressure and thicker fabrics with more pressure.
  • Page 17 2. When the upper looper thread is Top side 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 3. When the lower looper thread is Top side unbalanced and appears on the top-side of the fabric:...
  • Page 18: Differential Feed Adjustment

    Differential feed adjustment The feed dogs work independently of each other to give perfect results when sewing Differential feed speciality fabrics. Use differential feed to prevent stretching of knit fabrics and puckering of lightweight Indicator fabrics. • “N” indicates the neutral position. Refer to the following chart and test stitch performance on a scrap of fabric you are going to use.
  • Page 19: Stitch Width Adjustment

    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. •...
  • Page 20: Sewing Curved Seams

    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.
  • Page 21: 2-thread Overlock Stitch Using 1 Needle

    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).
  • Page 22: Conversion To 2-thread Overlock

    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. 2. Push the projection (A) of convertor and insert the tip (B) of convertor into the eye (C) of upper looper.
  • Page 23: Thread Tension Adjustment

    Thread tension adjustment 1. Correct tension Top side Underside 2. Unbalanced lower looper thread wraps around the back. Top side Tighten the thread tension of the lower looper (Dial 4) or loosen the needle thread tension (Dial 2). Underside 3. Needle thread unbalanced and too loose. Tighten the needle thread tension (Dial 2) Top side or loosen the tension of lower looper thread...
  • Page 24: How To Roll Hem

    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. Underside 1. Remove the left needle (see p. 8). 2.
  • Page 25: 2-thread Rolled Hem

    5. The standard thread tensions are as follow: Dial 2: Needle thread ......4-7 Dial 3: Upper looper thread ..... 4-7 Dial 4: Lower looper thread ..... 5-8 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.
  • Page 26: Corded Overlock

    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.
  • Page 27: Maintenance

    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.
  • Page 28: Changing The Light Bulb

    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.
  • Page 29: Cleaning

    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.
  • Page 30: Sewing Problems And Their Solutions

    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.
  • Page 31: Table Of Sewing Fabrics, Needles And Machine Settings

    6. Table of sewing fabrics, needles and machine settings Medium to heavy Heavy fabric Light fabric fabric (denim, jersey) (crepe, georgette) (cotton, wool) Needle HA x 1SP HA x 1T #11 or #14 (130/705H) (75) (75) or (90) (90) (For home-use sewing machine) •...
  • Page 32: Specifications

    7. Specifi cations Number of threads 4-threads (3-, 2-threads) Number of needles 2 needles (1 needle) Organ HA x 1T #11, #14 Needles (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...
  • Page 33: Index

    8. Index Accessories ..........5 Skipping stitches ........28 Blades, replacing ........25 Specifications .........30 Chaining off / chain stitch .....13 Speed adjustment ......6, 30 Cleaning ..........27 Stitch length ........17, 20 Connection ..........6 Stitch width ........17, 20 Cording ..........24 Tensions ........... 14-15 Curves .............18 Tensions, adjustment ......14, 21 Differential feed ........16 Tensions, balanced ........14...
  • Page 35: Intellectual Property

    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.
  • Page 36 VSM Group AB • SE-561 84 Huskvarna • SWEDEN

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