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0 0 oR C) C C,) 0 __ Do’s and Don’ts 2. attention from the machine while Always beware of the up-an&down movement of the needle and do not turn your it is running. always disconnect the machine by When changing the needle, the sewing foot, the bobbin or any other parts, 3. pulling the plug out of the wall socket. , or the control or motor Do not place anything on the foot control, otherwise the machine will start inadvertently 1 may burn out. 4. 5. The maximum permissible power for the sewing lamp bulb is 15 watts. under the sewing foot and run When using your sewing machine for the first time, place a piece of waste fabric the machine without thread for a few minutes. Wipe away any oil which may have appeared. 1 Contents The parts of Model 72. The parts of Model 75 The parts of Model 77 Detachable workplate, Models 75 and 77 Howto usethefoot control The sewing lamp Table of needles, threads and fabrics Inserting the needle The stitch selector, Model 72 The stitch selector, Model 75 The stitch selector, Model 77 Colourcodeselector Stitch length selector and reversing button Regulating the threadtensions Regulating the sewing foot pressure (Patch-O-Matic) Dropping the feed Removing and inserting the bobbin case and bobbin, Model 72 Removing and inserting the bobbin case and bobbin, Models 75 and 77 2 Winding the bobbin How to wind correctly Threading the bobbin case Threading the needle thread Drawing up the bobbin thread Sewing with straight stitch How to begin sewing How to turn corners How to finish sewing 4— 5 6— 7 8— 9 10 11 11 12 13 14 14 15 15 16 17 18 18 19 20 21 22 23 24 25 26 26 27 27 els 75 and 77 Applications for the free arm of Mod els 75 and 77 Mod on les artic ed Sewing tubular shap Sewing with a twin needle 77 Tricot zigzag stitch, Models 75 and 75 and 77. els Mod h, stitc ch Triple, straight stret Feather stitch, Model 77 Overlock stitch, Models 75 and 77 Sewing buttonholes Sewing on buttons Sewing in zip fasteners Hemming Sewing blind hems, Model 72 77 Sewing blind hems, Models 75 and Embroidery Cleaning the shuttle race Cleaning the feed dog How to oil the machine Drive belt tension Faults and how to remedy them 28 — 3 -4 CD a. 0 C’, 0 CD -4 1 Sewing foot pressure regulator (Patch-O-Matic) 2 Bobbin winder tension 14 Needle thread tension 3 Take-up lever 15 Needle bar 4 Thread guide 5 Top cover 16 Needle holder with fixing screw 17 Bedplate cover 6 Spool pins 18 Sewing toot 13 Bedplate 7 Stitch selector 19 Needle plate 8 Bobbin winder spindle 20 Sewing foot fixing screw 9 Bobbin winder stop 21 Presser bar 10 Hand wheel 22 Thread guides 11 Stitch length selector 12 Reversing button 23 Face plate 5 0) _L S - C 0) 0) C)) - () £‘3 -‘ (Il 0 a. CD 0 C’, -l (D 1 Sewing foot pressure regulator (Patch-O-Matic) 2 Bobbin winder tension 3 Take-up lever 4 Thread guide 5 Top cover 6 Spool pins 7 Stitch selector 8 Bobbin winder spindle 9 Bobbin winder stop 10 Hand wheel 11 Stitch length selector 12 Reversing button 13 Bedplate 14 Needle thread tension 15 Needle bar 16 Needle holder with fixing screw 18 Sewing foot 19 Needle plate 20 Sewing foot fixing screw 21 Presser bar 22 Thread guides 23 Face plate 25 Free arm 26 Detachable workplate 7 -l -.1 m 0 0. 0 (I, 0 m 1 Sewing foot pressure regulator (Patch-O-Matic) 13 Bedplate 2 Bobbin winder tension 14 Needle thread tension 3 Take-up lever 15 Needle bar 4 Thread guide 16 Needle holder with fixing screw 5 Top cover 18 Sewing foot 6 Spool pins 19 Needle plate 7 Stitch selector 20 Sewing foot fixing screw 8 Bobbin winder spindle 21 Presser bar 9 Bobbin winder stop 22 Thread guides 10 Hand wheel 23 Face plate 11 Stitch length selector 24 Colour code selector 1 2 Reversing button 25 Free arm 26 Detachable workplate 9 Detachable workplate, Models 75 and 77 F V The detachable workplate increases the sewing area for ordinary sewing operations. P T Removing Lift the end of the workplate near to the lug and pull it away. -I * * Fitting Push the workplate over the free arm of the sewing machine until its lug snaps into the notch in the arm. Note: The detachable workplate is removed to allow sewing of tubular articles. * 10 How to use the foot control Place the control in a position where you can reach it easily with your foot. Turn the hand wheel towards you and press the pedal down. The harder you press the pedal the faster the machine sews. The sewing lamp * Switch The sewlight switch is found on the back of face plate. * Changing the bulb Bulb Type (A): To remove To replace Bulb Type (B): To remove To replace * — — — — Turn counter-clockwise Turn clockwise Push and twist counter-clockwise Push and twist clockwise Bulb [JO Use a 15-watt bulb. Caution! Before leaving the machine, changing parts or doing any other work on it, always remove the mains plug. Never place anything on the foot control, otherwise the machine will start unintentionally, or the control or motor may burn out. 1 (A)L__- (B) 11 Tables of needles, threads and fabrics xj 12 see rear cover pagei (As to the size of needles please Inserting the needle To insert the needle proceed as follows: o Turn the hand wheel towards you until the needle is at the top. Loosen the needle fixing screw. Turn the needle with the flat side facing away from you. Push the needle in its hole as far as it will go. Tighten the needle fixing screw securely. 13 The The stitch selector, Model 72 Turn The’. Turn the selector until the symbol of the stitch you require is at the setting mark. If you set the symbols left D or middle D the machine will sew straight stitches with the needle in the left or middle positions. Set to the range marked w— the machine will sew zigzag stitches of the width selected. If you are using twin needles the zigzag stitch width must not be set outside the range marked The symbols: UI LU are for sewing buttonholes. If yoi the r .. The stitch selector, Model 75 Turn the selector until the symbol of the stitch your require is at the setting mark. The white symbols are for straight stitch, zigzag stitch and utility stitch seams. straight stitch, left needle position straight stitch, middle needle position W zigzag stitches in widths from 1 to 5 mm Red If you are using twin needles the zigzag stitch width must not be set outside the range marked 14 Stretch stitch Overlock stitch Stretch blind stitch Triple straight stretch stitch LU Red symbols UI Sewing buttonholes without turning the fabric Cob Befoi of th show The stitch selector, Model 77 Turn the selector untH the symbol of the stitch you require is at the setting mark. The white symbols are for straight stitch, zigzag stitch and utility stitch. straight stitch, left needle position straight stitch, middle needle position W’ zigzag stitches in widths from 1 to 5 mm If you are using twin needles the zigzag stitch width must not be set outside the range marked Stretch stitch The blue symbols are for super-utility-stitch seams III Fancy stitch Stretch blind stitch Triple straight stretch stitch \AANv/w Triple zigzag stretch stitch, from 1 to 5 mm Feather stitch Red symbols 111 III Sewing buttonholes without turning the fabric Overlock stitch Fancy stretch stitch White and red range fTh Colour code selector Before you begin to sew, set the lever of this control to the colour of the stitch symbol you have selected. The arrow on the lever shows the colour range set. DcD: t Blue range 15 Stitch length selector and reversing button To change the length of the stitches proceed as follows: Turn the selector so that the number for the required stitch length is at setting mark A. The numbers indicate the stitch lengths in mm. The lower the number, the shorter the stitch. Sewing backwards*: To sew backwards, push the reversing button fully in and hold it there until the machine has made the number of stitches you need. When you let go of the button the machine will sew forwards again: * Reverse sewing is very useful as a means of strengthening or securing a seam. Re o 0.5 1 2 3 4 Stitch lengths Corr tant thet res u illust Rem 16 Regulating the thread tensions or increase needle thread tension (A) needle thread tension correct If the bobbin thread runs in a straight line on the underside of the material, the needle thread tension is too loose. *The thread tension is normal ly regulated by altering the r’eedle thread tension. Correct regulation of the thread tensions is important for obtaining durable and tidy seams. If one of the tensions is not correct, untidy seams will be the result. The tensions are regulated as shown in the illustrations. Remarks:*The correct tension setting depends on the fabric used. It is best to try out which is the best tension on a piece of waste material, decrease needle thread tension fF If you cannot remove this fault by increasing the needle thread ten sion, you may have to decrease the bobbin thread tension as shown in A. or (B) If the needle thread runs in a straight line on the top side of the material, the needle thread tension is set too tight. If the latter is set at number 4 or lower this fault should not normally occur. If it does, it is perhaps necessary to increase the bobbin thread tension as shown in B. 17 Regulating the sewing foot pressure (Patch-O-Matic) To release the sewing foot pressure, pijsh ring A downwards. This causes the regulator to spring to its highest position. The material is now free of any pressure from the sewing foot. For sewing thin or light materials push regulator B down just a little to provide the light sewing foot pressure required. If you are sewing thick or heavy materials push the regulai.or farther down to increase the pressure of the sewing foot on the material. A Dropping the feed Embroidering and darning are best carried out with the feed mechanism disengaged. This is done by setting the stitch length selector at HU ,which drops the feed and allows the material to be moved freely under the needle. The feed starts its normal function again as soon as you turn the stitch length selector to “0” or beyond it. 18 Rer i. 2. 3. Removing and inserting the bobbin case and bobbin, Model 72 1 2 3 1. Lift the sewing foot by raising the lifting lever. 2. Turn the hand wheel towards you until the take-up lever is at the top. Release the 3. Open the bedplate cover. Lift the bobbin case latch and pull the bobbin case out with the bobbin inside. drop out. cannot bobbin the open latch case latch and the bobbin will fall out. As long as you hold the bobbin To insert again just reverse the above order. 19 Removing and inserting the bobbin case and bobbin, Models 75 and 77 Win 1. Raise the sewing foot and turn the hand wheel towards you until the take-up lever is at the top. Hold I with y Place under Threa and p Push stop I 2. Open the arm cover. Now away Tighb 3. Lift the bobbin case latch and pull the bobbin case out with the bobbin inside. Release the latch and the bobbin will fall out. As long as you hold the bobbin case latch open the bobbin cannot drop out. To insert again just reverse the above order. 20 3 Winding the bobbin Hold the hand wheel firmly with your left hand and undo the locking screw with your right hand (turn towards you). Place a reel of thread on pin 1. Pass the thread through the eyelet and under the disc of winder tension 2. Thread the bobbin through one of its holes from the inside outwards and place the bobbin on winder spindle 3. Push both spindle and bobbin towards the back so that the bobbin winder stop fits into the bobbin. Now let the machine run until the bobbin stops, then push the spindle away from the stop and cut the thread. Tighten the locking screw on the hand wheel again. 21 4 .4 a — Cr) °CD oo D CD 0 D 0 0 D D)-Q 0 0 - 3 — - — = a 0 CDO° — a- a < D D 0 CD CD a c D *0 0 -+CD - 3 S 3ocr D) < — O CD . HD DD) CD — CD 39. PD)C DD Cl) _. * :r * D D — CD * D0 CDD CD 000 ZTD —. CD 0 D cr — D) o CO 0 CD D 00 C) CD D I - 0 CO 0 D CDCD D f — CD . O D CD CD DO - DC) cD.g -.oCJ) — CQDO_ DciøZCDDQ D CD 0 D ,0 a 0 c D CD m -I 0 C, 0 CD