Owner's Manual
Page 2
D) The drive belt must take sufficient care to the up and down movement of the light bulb is 15 watts. C) The maximum approved wattage of the needle, the user must never be disconnected from the power source. Notes on safety A) Due to avoid injury and observe the sewing area continuously while sewing. B) When leaving the machine, changing parts or accessories, the machine must be adjusted by anyone but an authorized Pfaff agent.
D) The drive belt must take sufficient care to the up and down movement of the light bulb is 15 watts. C) The maximum approved wattage of the needle, the user must never be disconnected from the power source. Notes on safety A) Due to avoid injury and observe the sewing area continuously while sewing. B) When leaving the machine, changing parts or accessories, the machine must be adjusted by anyone but an authorized Pfaff agent.
Owner's Manual
Page 3
...Threading left looper Threading the needles Inserting the lint box Sewing test Points to observe during sewing Securing the seam Checking and adjusting thread tension 3-thread overedge seam Thread chart Adjusting the stitch length on 794 Adjusting the stitch length on 796 Adjusting the differential feed on 796 Regulating the sewing foot pressure Adjusting the seam width Changing the sewing feet Sewing rolled hems Changing needles Changing lower knife Changing upper knife Changing light bulb Cleaning the thread tensions Oiling the machine Sewing problems and solutions Accessories Specifications...
...Threading left looper Threading the needles Inserting the lint box Sewing test Points to observe during sewing Securing the seam Checking and adjusting thread tension 3-thread overedge seam Thread chart Adjusting the stitch length on 794 Adjusting the stitch length on 796 Adjusting the differential feed on 796 Regulating the sewing foot pressure Adjusting the seam width Changing the sewing feet Sewing rolled hems Changing needles Changing lower knife Changing upper knife Changing light bulb Cleaning the thread tensions Oiling the machine Sewing problems and solutions Accessories Specifications...
Owner's Manual
Page 5
...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 7 Left looper thread tension dial cover 11 Presser foot lifter lever 12 Hand wheel and feed regulator 13 Looper cover 14 Looper cover lever 15 Work support 16 Stitch length setting key on 794 Differential feed setting on 796 17 Needle plate 18 Presser foot 19 Needle bar 20 Thread reel stand 21 Thread reel pins 22 Adjusting knob 23 Machine plug socket 24 Master switch 25 Lint box 26 Foot control 27 Foot...
...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 7 Left looper thread tension dial cover 11 Presser foot lifter lever 12 Hand wheel and feed regulator 13 Looper cover 14 Looper cover lever 15 Work support 16 Stitch length setting key on 794 Differential feed setting on 796 17 Needle plate 18 Presser foot 19 Needle bar 20 Thread reel stand 21 Thread reel pins 22 Adjusting knob 23 Machine plug socket 24 Master switch 25 Lint box 26 Foot control 27 Foot...
Owner's Manual
Page 6
Accessory box Swing the work support to a power source. The accessories are illustrated on the foot control. Caution: When the machine is not in use, disconnect plug from power source. Do not place any objects on page 32. Then connect the mains plug to the left and pull out the accessory box. Electrical connection Use this machine only on a flat surface or on a special sewing table. To replace the accessory box, slide it locks. Attaching the toot control: Insert the plug of the control into the grooves and push it until it into the machine plug socket.
Accessory box Swing the work support to a power source. The accessories are illustrated on the foot control. Caution: When the machine is not in use, disconnect plug from power source. Do not place any objects on page 32. Then connect the mains plug to the left and pull out the accessory box. Electrical connection Use this machine only on a flat surface or on a special sewing table. To replace the accessory box, slide it locks. Attaching the toot control: Insert the plug of the control into the grooves and push it until it into the machine plug socket.
Owner's Manual
Page 9
... the machine (A). Left looper (orange) 3. A threading diagram is affixed to obtain a well-formed seam. Now pull the respective thread into the corresponding guides and tension discs. 7 Opening and closing looper cover and work support, push it to the right until it locks. Thread the machine in the direction of the arrow and lower it. Diagram C shows threading of the thread guides behind the carrying handle. Right needle (green) 4. To open the work support, push...
... the machine (A). Left looper (orange) 3. A threading diagram is affixed to obtain a well-formed seam. Now pull the respective thread into the corresponding guides and tension discs. 7 Opening and closing looper cover and work support, push it to the right until it locks. Thread the machine in the direction of the arrow and lower it. Diagram C shows threading of the thread guides behind the carrying handle. Right needle (green) 4. To open the work support, push...
Owner's Manual
Page 15
Finishing seam Sew approximately 5 cm beyond the end of the seam and use the thread cutter (1) behind the presser foot to sew. (Also after the machine has been re threaded). Since the fabric is fed automatically, do not pull or push the fabric. Use your hand for guiding only. Sew the first stitches slowly. Points to observe during sewing Place the fabric completely under the presser foot when starting to cut the thread chain.
Finishing seam Sew approximately 5 cm beyond the end of the seam and use the thread cutter (1) behind the presser foot to sew. (Also after the machine has been re threaded). Since the fabric is fed automatically, do not pull or push the fabric. Use your hand for guiding only. Sew the first stitches slowly. Points to observe during sewing Place the fabric completely under the presser foot when starting to cut the thread chain.
Owner's Manual
Page 16
... the seam. Sewing very heavy fabrics and different thicknesses of seams, sew approximately 3 cm (1") beyond the seam. When sewing very heavy fabrics, tighten the upper knife screw. Raise presser foot. Note: When sewing thin fabrics, loosen the upper knife screw after sewing on heavy fabrics. (See illustration). Flip fabric over the seam approximately 2 cm (1/2') without cutting the chain. Securing the seam: Knot the thread chain. Lower presser foot and sew over . For knit fabrics, a crochet needle can be used...
... the seam. Sewing very heavy fabrics and different thicknesses of seams, sew approximately 3 cm (1") beyond the seam. When sewing very heavy fabrics, tighten the upper knife screw. Raise presser foot. Note: When sewing thin fabrics, loosen the upper knife screw after sewing on heavy fabrics. (See illustration). Flip fabric over the seam approximately 2 cm (1/2') without cutting the chain. Securing the seam: Knot the thread chain. Lower presser foot and sew over . For knit fabrics, a crochet needle can be used...
Owner's Manual
Page 17
Sew a test sample to be adjusted according to "N" (standard setting). Left looper thread - Reverse side Right Left needle thread needle thread Adjusting thread tension: Set all thread tension dials to fabric type and thread size. I - See illustration above. 1 See illustration below. Top side Right looper thread Setting thread tensions: The thread tension should be sure that the correct tension has been obtained. Examine the seam and make the necessary tension adjustments.
Sew a test sample to be adjusted according to "N" (standard setting). Left looper thread - Reverse side Right Left needle thread needle thread Adjusting thread tension: Set all thread tension dials to fabric type and thread size. I - See illustration above. 1 See illustration below. Top side Right looper thread Setting thread tensions: The thread tension should be sure that the correct tension has been obtained. Examine the seam and make the necessary tension adjustments.
Owner's Manual
Page 18
When the thread tension is turned in (-) direction it is too tight (orange thread tension) or the right looper thread too loose (red thread tension). The left looper thread too loose (orange thread tension). The right needle thread is increased. Top side Reverse side 1 - The right looper thread is too tight (red thread tension) or the left needle thread is too loose (blue thread tension). When turned in (+) direction, the tension is too loose (green thread tension). The left looper thread is decreased. Incorrect thread tension;
When the thread tension is turned in (-) direction it is too tight (orange thread tension) or the right looper thread too loose (red thread tension). The left looper thread too loose (orange thread tension). The right needle thread is increased. Top side Reverse side 1 - The right looper thread is too tight (red thread tension) or the left needle thread is too loose (blue thread tension). When turned in (+) direction, the tension is too loose (green thread tension). The left looper thread is decreased. Incorrect thread tension;
Owner's Manual
Page 19
Remove the needle that is possible by using either right or left needles (see page 26). 3-thread overedge seam _____ How to convert from four-thread to threethread sewing: Three-thread sewing is riot used (see page 10). Needle thread Thread tension 3-thread overedge seam Left needle Marked blue Rht needle Marked green Thread in needle clamp guides 0 0 Standard seam width maxim urn seam width 6.5 mm 4.5 mm
Remove the needle that is possible by using either right or left needles (see page 26). 3-thread overedge seam _____ How to convert from four-thread to threethread sewing: Three-thread sewing is riot used (see page 10). Needle thread Thread tension 3-thread overedge seam Left needle Marked blue Rht needle Marked green Thread in needle clamp guides 0 0 Standard seam width maxim urn seam width 6.5 mm 4.5 mm
Owner's Manual
Page 20
... stitch length in mm which normally is normally reset only for very thin or heavy fabrics. Heavy fabrics: Increase the sewing foot pressure by setting to a lower number. Stitch Ienght setting on 794 The stitch length is the standard sewing foot pressure. A = setting mark. Thin fabrics: Reduce the sewing foot pressure by turning feed regulator 16. Medium-heavy materials: Cotton, tricot, linen, dress materials Heavy materials: Tweed, suit materials, denim, heavy cloth Knit fabrics: Rolled hem Thread...
... stitch length in mm which normally is normally reset only for very thin or heavy fabrics. Heavy fabrics: Increase the sewing foot pressure by setting to a lower number. Stitch Ienght setting on 794 The stitch length is the standard sewing foot pressure. A = setting mark. Thin fabrics: Reduce the sewing foot pressure by turning feed regulator 16. Medium-heavy materials: Cotton, tricot, linen, dress materials Heavy materials: Tweed, suit materials, denim, heavy cloth Knit fabrics: Rolled hem Thread...
Owner's Manual
Page 21
The stitch length is N = 3 mm. Turn handwheel 12 in the direction indicated by continuing to turn handwheel 12 forwards or backwards, as may be required (point of arrow). / The numbers indicate the stitch length in mm which normally is set firmly as soon as you release the stop of the main feeddog. 19 di if I 5: Set the required stitch length at mark A by the arrow until it there. If I IIIi II I I ! Press stop of main feed dog (see arrow) fully downwards and hold it snaps into place. Setting the stitch length on 796 Open lateral swivel table 15.
The stitch length is N = 3 mm. Turn handwheel 12 in the direction indicated by continuing to turn handwheel 12 forwards or backwards, as may be required (point of arrow). / The numbers indicate the stitch length in mm which normally is set firmly as soon as you release the stop of the main feeddog. 19 di if I 5: Set the required stitch length at mark A by the arrow until it there. If I IIIi II I I ! Press stop of main feed dog (see arrow) fully downwards and hold it snaps into place. Setting the stitch length on 796 Open lateral swivel table 15.
Owner's Manual
Page 22
... rear feed dog Setting 2 = Front feed dog set for longest possible stroke, rear feed dog set for shortest possible stroke The differential feed can be set separately. The feed amount of two teed dogs, arranged one and vice versa. The following settings at the same time. It is possible to 2, also during sewing. Owing to process (see table on page 21). U /cF WLfl Adjusting the differential feed The differential feed...
... rear feed dog Setting 2 = Front feed dog set for longest possible stroke, rear feed dog set for shortest possible stroke The differential feed can be set separately. The feed amount of two teed dogs, arranged one and vice versa. The following settings at the same time. It is possible to 2, also during sewing. Owing to process (see table on page 21). U /cF WLfl Adjusting the differential feed The differential feed...
Owner's Manual
Page 24
Push upper knife holder (1) to the lower (cutting) position and close the looper cover. Choose the required seam width by turning the stitch width button (3). Reset the upper knife to the far right. Adjusting seam width: Standard setting is "N". To disengage upper knife, open looper cover. Note: Before adjusting the stitch width, always disengage the upper knife. Sew a test sample. Turn knurled knob (2) clockwise until it may be changed from 2.5 to 6.5 mm...
Push upper knife holder (1) to the lower (cutting) position and close the looper cover. Choose the required seam width by turning the stitch width button (3). Reset the upper knife to the far right. Adjusting seam width: Standard setting is "N". To disengage upper knife, open looper cover. Note: Before adjusting the stitch width, always disengage the upper knife. Sew a test sample. Turn knurled knob (2) clockwise until it may be changed from 2.5 to 6.5 mm...
Owner's Manual
Page 27
... fabrics. The Pfaff Hobbylock 794 is also perfect for a wider hem. 7. Thread the satin finish. Rolled hem Use a rolled hem on heavier fabrics that cannot be rolled. Remove left needle. 2. Snap on rolled hem foot, marked with the letter "R", from accessory box. 3. Use green, red, and orange threading paths only. 4. Snap on the fabric used. Use green, red, and orange threading paths only. 4. Set orange threading path (lower looper tension) at a higher setting for this type of hem. 1. Set stitch...
... fabrics. The Pfaff Hobbylock 794 is also perfect for a wider hem. 7. Thread the satin finish. Rolled hem Use a rolled hem on heavier fabrics that cannot be rolled. Remove left needle. 2. Snap on rolled hem foot, marked with the letter "R", from accessory box. 3. Use green, red, and orange threading paths only. 4. Snap on the fabric used. Use green, red, and orange threading paths only. 4. Set orange threading path (lower looper tension) at a higher setting for this type of hem. 1. Set stitch...
Owner's Manual
Page 28
... the needle clamp screw. Always turn the knob clockwise until it will cause thread breakage and skipped stitches. Removing lower knife: Unplug the machine. Raise the needle bar. Push the needle up as far as spare parts and should be seen from the side. Changing knives Knives are blunt. Notes: System D8 x 1, or 1738 needles are used , a size 14 needle is at the highest position, insert a new needle in the needle holder, making sure...
... the needle clamp screw. Always turn the knob clockwise until it will cause thread breakage and skipped stitches. Removing lower knife: Unplug the machine. Raise the needle bar. Push the needle up as far as spare parts and should be seen from the side. Changing knives Knives are blunt. Notes: System D8 x 1, or 1738 needles are used , a size 14 needle is at the highest position, insert a new needle in the needle holder, making sure...
Owner's Manual
Page 30
Push the upper knife holder to be replaced with normal use. To replace the upper knife, insert the retaining screw through cutout (1) of the knife. Unscrew the knife retaining screw and remove upper knife. Screw it clicks. Tighten slightly and set the upper knife in the lowest position. Tighten the retaining screw securely. Turn the hand wheel counterclockwise until it into threaded hole (2) of the knife holder. Unplug the machine. The...
Push the upper knife holder to be replaced with normal use. To replace the upper knife, insert the retaining screw through cutout (1) of the knife. Unscrew the knife retaining screw and remove upper knife. Screw it clicks. Tighten slightly and set the upper knife in the lowest position. Tighten the retaining screw securely. Turn the hand wheel counterclockwise until it into threaded hole (2) of the knife holder. Unplug the machine. The...
Owner's Manual
Page 31
Push bulb up and turn it in direction (1) and remove it. Insert the new bulb with the accesories to the left. Cleaning thread tensions: Flip the tension cover down. Close the tension cover. 29 Replace cover. Caution: Use a 15 watt bulb only. Remove the retaining screw from the light cover and swing cover to remove dust and lint from the discs. Use the brush provided with pins into slots (3). Changing the light bulb: Unplug the machine. Turn the bulb in direction (2).
Push bulb up and turn it in direction (1) and remove it. Insert the new bulb with the accesories to the left. Cleaning thread tensions: Flip the tension cover down. Close the tension cover. 29 Replace cover. Caution: Use a 15 watt bulb only. Remove the retaining screw from the light cover and swing cover to remove dust and lint from the discs. Use the brush provided with pins into slots (3). Changing the light bulb: Unplug the machine. Turn the bulb in direction (2).
Owner's Manual
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.... Insert needle correctly (page 26). Use needle system DB x 1, or 1738 Thread correctly (pages 7-11). Incorrect setting of simple adjustment errors. ewing problems and solutions hs machine is not fed correctly Needle breakage Thread breakage Skipped stitches Incorrect stitch formation Puckered seams Sewing foot pressure too weak Turn sewing foot pressure screw clockwise to increase pressure. Incorrectly threaded Thread has caught Thread tension too tight Needle not correctly inserted Incorrect needle used Incorrectly threaded Sewing foot pressure too weak Insert new needle. Use needle...
.... Insert needle correctly (page 26). Use needle system DB x 1, or 1738 Thread correctly (pages 7-11). Incorrect setting of simple adjustment errors. ewing problems and solutions hs machine is not fed correctly Needle breakage Thread breakage Skipped stitches Incorrect stitch formation Puckered seams Sewing foot pressure too weak Turn sewing foot pressure screw clockwise to increase pressure. Incorrectly threaded Thread has caught Thread tension too tight Needle not correctly inserted Incorrect needle used Incorrectly threaded Sewing foot pressure too weak Insert new needle. Use needle...
Owner's Manual
Page 34
3 4 5 /__• 60 Specifications Highest sewing speed Overedge seam width Stitch length Sewing foot Lubrication Needle system Dimensions . Weight 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 stitches/mm, 30-6.5 mm 1-5mm Snap-on • Manual • DB x 1 or 1738 (size 9-14) • . . 24x22x18.5cm 8.5 kg (19 lbs.)
3 4 5 /__• 60 Specifications Highest sewing speed Overedge seam width Stitch length Sewing foot Lubrication Needle system Dimensions . Weight 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 stitches/mm, 30-6.5 mm 1-5mm Snap-on • Manual • DB x 1 or 1738 (size 9-14) • . . 24x22x18.5cm 8.5 kg (19 lbs.)