Gebruiksaanwijzing /service van het product hobbylock 794 van de fabrikant Pfaff
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74 0 Instruction manual I.
Notes on safety A) Due to the up and down movement of the needle, the user must take sufficient care to avoid injury and observe the sewing area continuously while sewing. B) When leaving the machine, changing parts or accessories, the machine must be disconnected from the power source.
Contents The controls of the sewing machine 2, 3 Accessory box 4 Electrical connection 4, 5 Foot control 5 Preparing for threading 6, 7 Threading, 4-thread double-overedge seam 7—11 Threading right .
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Controls of the sewing machine 1 Foot pressure regulating dial 2 Thread guide 3 Carrying handle 4 Left needle thread tension dial 5 Right needle thread tension dial 6 Right looper thread tension dial .
Accessory box Electrical connection Use this machine only on a flat surface or on a special sewing table. Attaching the toot control: Insert the plug of the control into the machine plug socket. Then connect the mains plug to a power source. Caution: When the machine is not in use, disconnect plug from power source.
Foot Control The speed of the HObbyIo is regula as follows: When press,g the foot Control gently the machine will run at low Speed. when Pressing harder it will run faster.
Preparing for threading Adjustment of thread reel stand: Loosen the adjusting knob on the thread reel stand, slide it to the left and tighten it. Adjustment of the thread guides: Pull up the thread guide bar and align it j so that the thread guides are directly above the reel stand.
Opening and closing looper cover and work support Push looper cover lever to the right, swing cover in the direction of the arrow and lower it. To close the looper cover, push the cover until it locks. To open the work support, push it to the left. To close the work support, push it to the right until it locks.
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Threading the left looper: Insert the left looper thread in sequence 1 to 10 and pull approximately 10 cm (4) of thread through the looper eye (the thread path is marked orange).
Threading the right needle: Thread the right needle in sequence 1 to 7 and pull approximately 5 cm of thread through the eye of the needle. (The thread path is marked green.) Make sure to thread point 4 with special care; insert the thread behind hook A of the thread guide plates fitted on both sides.
Now close the work support (1), push the handle down (2) and close the looper cover (3). Inserting the lint box: Insert the tabs of the lint box into the slots (4) of the front cover. Push the lint box up against the front cover until it snaps in place.
Sewing a test sample After threading, a test sample should be sewn. Raise presser foot lever, as shown in illustration. Insert test fabric and lower presser foot. Hold thread ends with your left hand while turning hand wheel counter clockwise with your right hand.
Points to observe during sewing Place the fabric completely under the presser foot when starting to sew. (Also after the machine has been re threaded). Sew the first stitches slowly. Since the fabric is fed automatically, do not pull or push the fabric.
Securing the seam: Knot the thread chain. For knit fabrics, a crochet needle can be used to pull the thread chain into the seam. To prevent ravelling of seams, sew approximately 3 cm (1”) beyond the seam. Raise presser foot. Flip fabric over. Lower presser foot and sew over the seam approximately 2 cm (1/2’) without cutting the chain.
Top side Setting thread tensions: Right looper thread Left - looper thread Right - I Left needle thread Reverse side needle thread The thread tension should be adjusted according to fabric type and thread size. Examine the seam and make the necessary tension adjustments.
When the thread tension is turned in (+) direction, the tension is increased. When turned in (—) direction it is decreased. Incorrect thread tension; The left needle thread is too loose (blue thread tension). The right needle thread is too loose (green thread tension).
3-thread overedge seam How to convert from four-thread to three- thread sewing: Three-thread sewing is possible by using either right or left needles (see page 10).
Thread chart Material Thread Stitch length Light materials: Organdy, light-knit Cotton No. 80—100 2.0 to 4.0 mm fabric, Taffeta, silk, Silk No. 80—100 lining materials. Synthetic thread No. 70—140 Medium-heavy materials: Cotton No. 60—100 2.0 to 4,0 mm Cotton, tricot, Silk No.
Setting the stitch length on 796 Open lateral swivel table 15. Press stop of main feed dog (see arrow) fully downwards and hold it there. Turn handwheel 12 in the direction indicated by the arrow until it snaps into place.
Adjusting the differential feed U WLfl /cF The differential feed prevents interpIy shift. It consists of two teed dogs, arranged one behind the other, which both pick up and move the workpiece at the same time. The feed amount of either feed dog can be set separately.
ms table indicates possible settings of the differential feed. In order to make sure about the setting quired for the fabric you wish to process a sewing test has to be made. r1e differential feed can also be set during sewing. Setting of dif- Illustration Correct Fabric ferential feed seam Nylon, tricot, lining fabrics, 0.
Adjusting seam width: Standard setting is 3.5 mm. The seam width can be changed from 2.5 to 6.5 mm. according to fabric type and seam requirements. Note: Before adjusting the stitch width, always disengage the upper knife. To disengage upper knife, open looper cover.
Changing the sewing feet Push lever A up slightly (Fig. 1), and the presser foot will snap out. Place the foot under the presser foot holder so that crosspiece B of the rolled hem foot engages in groove C of the holder (Fig. 2). Push the presser foot lever down and with the other hand gently push lever A up until the foot snaps on.
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Rolled hem Use a rolled hem on fine and delicate fabrics. A quick test to determine if the fabric is suitable for a rolled hem is to roll the fabric between thumb and index finger. If it rolls, the Pfaff Hobbylock will quickly produce a professional rolled hem.
Changing needles Removing needle: Unplug the machine. Turn the hand wheel counter-clockwise to raise the needle bar to its highest position. Loosen the needle clamp screw with the allen wrench and pull the needle Out.
Loosen knife clamp screw (1) and pull - the lower knife down. I t:z _____ Inserting lower knife: Insert a new knife into the groove of the lower knife holder with the cutting edge _________ facing right. Set the knife so that the cutting edge aligns with the surface of the needle — Tighten the lower knife clamp screw.
Changing upper knife: To replace the upper knife, insert the retaining screw through cutout (1) of the knife. Screw it into threaded hole (2) of the knife holder. Tighten slightly and set the upper knife in the cutting position. Turn the hand wheel counterclockwise until the upper knife arm is in the lowest position.
Changing the light bulb: Unplug the machine. Remove the retaining screw from the light cover and swing cover to the left. Turn the bulb in direction (1) and remove it. Insert the new bulb with pins into slots (3). Push bulb up and turn it in direction (2).
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ewing problems and solutions hs machine is easy to operate and there are no difficult adjustments to be made. Problems, similar the ones described below, occur because of simple adjustment errors.
3 4 /__• 5 60 Accessories 1 Screwdriver 2 AlIen wrench 3 Lint brush 4 Tweezers 5 Lower knife 6 Thread unreeling disc 7 Needles 8 Oil 9 Rolled hem presser foot Optional accessories (not illustrated): Blindhem foot Elastic foot Specifications Highest sewing speed Overedge seam width Stitch length Sewing foot Lubrication Needle system Dimensions .
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PFAFF-HANDELSGESELLSCHAFT für Haushaltnäh maschinen m b. H Sube to aftratons in design 7500 Karlsruhe 41 West Germany No. 30068 0288 ..
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