Pfaff hobbylock 797 Support Question
Pfaff hobbylock 797 Support Question
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Question posted by cherylk95683 on August 23rd, 2021
How To Adjust Tension To Avoid Fabric Rolling When Overlocking
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Current Answers
Answer #1: Posted by SonuKumar on August 23rd, 2021 8:22 AM
SonuKumar
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https://manualzz.com/doc/52021204/pfaff-hobbylock-797-manual
https://www.youtube.com/watch?v=Xg1okyb4inM
https://www.youtube.com/watch?v=Xg1okyb4inM&t=51s
https://www.youtube.com/watch?v=Xg1okyb4inM&t=78s
https://www.youtube.com/watch?v=Xg1okyb4inM&t=111s
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Related Pfaff hobbylock 797 Manual Pages
Owner's Manual - Page 2
... the up and down movement of the light bulb is 15 watts. C) The maximum approved wattage of the needle, the user must be adjusted by anyone but an authorized Pfatf agent,
B) When leaving the machine, changing parts or accessories, the machine must take sufficient care to avoid injury and observe the sewing area continuously while...
Owner's Manual - Page 3
... the upper knife Disengageing the overedge looper Adjusting the machine for two-thread chainstitch seam Inserting the workpiece guide plate Adjusting the seam width Changing the sewing foot Sewing rolled hems Changing the needles Changing the lower knife Changing the upper knife Changing the light bulb Cleaning the thread tensions Oiling the machine Sewing problems and their removal Accessories...
Owner's Manual - Page 5
... looper 34 Thread guides behind the carrying
handle 35 Seam width adjustment knob
behind work support 15
27
31
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 7 Left looper thread tension dial 8 Looper thread tension dial for two-
Owner's Manual - Page 16
...type 6 (needles B and C), the standard thread tension N for needle B must be set opposite the blue point symbol. Make the correct adjustment after examination of the interlocking of the threads (see... thread tension The thread tension to 22). Only for the blue thread tension there are two standard settings: When using needle A (only for two-thread chainstitch.
-j Set the N on the fabric type...
Owner's Manual - Page 19
... of the upper knife.
17 On this machine, all kinds of fabric from extremely thin to extremely thick can be used to tighten or loosen the horizontal guide of the upper knife holder serves to pull the thread chain into the seam. When sewing extremely thick fabrics or workpieces with different thicknesses, the screw...
Owner's Manual - Page 21
... top side
3-thread overedge seam
Stitch type 4, sewn with needle C (narrow)
Stitch type 5, sewn with needles B and C
Thread tensions: blue = point symbol pink = point symbol green point symbol yellow = point symbol
Application examples: For sewing and serging all kinds of fabric. J
top side
4-thread overedge seam
Stitch type 6, sewn with needle B (wide)
Thread...
Owner's Manual - Page 22
Depending on the appearance of needle A is too loose (yellow thread tension).
Adjust tensions accordingly! Direction + = ncreased tension Direction - = decreased tension Two-thread chainstitch The thread tension of the seam, the thread tension must be turned in direction +. The pink thread tension must be turned in the - Needle thread B or C
Left looper thread
Right looper thread
3-...
Owner's Manual - Page 24
... fabrics, set the dial at 4. For very thin fabrics, set the regulating dial at 1. The pink thread tension must be turned in direction +. 4-thread overedge seam
The thread tension of needle B is too weak The blue thread tension must be turned in direction +. Needle thread C
4-thread overedge seam
The thread tension of needle C is the standard sewing...
Owner's Manual - Page 27
... Medium-heavy materials: Cotton, tricot, linen, dress materials Heavy materials: Tweed, suit materials, denim, heavy cloth
Knit fabrics:
Rolled hem
Thread
Cotton
No. 80-100
Silk
No. 80-100
Synthetic thread No. 70-140
Cotton
No. 60-100
... (bulk thread>
Stitch length 2.0 to 4.0 mm 2.0 to 4.0 mm 2.0 to 40 mm 2.0 to 4.0 mm 1.0 to 1.5mm
Adjusting the stitch length
Open work support 15.
Owner's Manual - Page 29
...-2 when light fabrics are processed. ...front feed dog, short stroke of 0 5 when medium o heavy elastic fabrics are accomplished.
Set the differential feed according to the material you wish to...infinitely from 0.5 to 2, also during sewing
Note: The following variants can be employed to obtain fashionable ...wave effect is possible to that very good sewing results are processed. It consists of either ...
Owner's Manual - Page 32
... on the left). Now the two-thread chainstitch seam can be sewn I
After sewing the two-thread chainstitch seam, the following adjustments must be made to 6. Then open the work support 15 a little. Now ...its downmost position. Turn the hand wheel until the needle is engaged again. For sewing the next seam, insert the correct needles When inserting the workpiece guide plate, make sure it ...
Owner's Manual - Page 33
The scale on page 29. The desired seam width is marked with adjusting knob 35. Sew a test seam. Note: After adjusting the seam width, it may be necessary to 5. Set the upper knife at its basic position again and close the looper cover. Adjusting the seam width The standard seam width setting is set with...
Owner's Manual - Page 35
Face side
Reverse side
-T4\
2\\ 33 Without any effort you can
sew professional rolled hems on neck scarves, shawls and valances.
Face side
Reverse side
Rolled hem
sewn with three threads (see page 34). A rolled hem is used for light, delicate fabrics and is sewn with polyester thread 100-140.
A rolled hem is an attractive finish tor
open edges.
Owner's Manual - Page 36
... polyester thread 120-140 for pink, green, and yellow thread tensions
Threading path:
1 right looper, green path 2. left looper Pink thread tension, needle thread
approx. "N"
approx. Rolled hem with polyester thread (ill. 1 and 2, page 33)
Preparation of the sewing machine:
Needle:
remove needle A and B
Sewing foot: engage rolled hem foot 'R"
Seam width, from 25 to 3.0 mm (depending...
Owner's Manual - Page 41
The bushings and other important moving parts are sufficient for oiling. One to two drops of high-quality sewing machine
oil are made of special material and need to the places indicated. Oiling the machine:
Every time before you take the machine into operation, you should apply a little oil to be oiled only once or twice a month.
Owner's Manual - Page 42
...machines have been iiade. Problem
Material is not fed correctly
Needle breakage
Cause
Sewing foot pressure too weak
Needle bent or point damaged.
Incorrect needle used . Regulate tension. (pages 14, 20, 21, 22). Incorrectly threaded.
Increase sewing... threadj Set thread tensions correctly
tensions.
(pages 14, 20, 21, 22). Re-adjust differential feed. Sewing problems
developed for ...
Owner's Manual - Page 43
... Lubrication Needle system Needle size Dimensions Weight
Accessories
1 Screwdriver 2 Screwdriver 3 Lint brush 4 Tweezers 5 Lower knife 6 Thread unreeling disc 7 Needles 8 Sewing machine oil 9 Rolled hem presser foot 10 Thread spool net (see page 42)
Optional accessories, see pages 42 to 44, available against extra charge
Blindhem foot Part No. ...
Owner's Manual - Page 44
... penetration of the folded hem is thus avoided. and adjust edge guide -2- cut in the fabric must run along edge guide -2-. Useful for synthetic thread which tends to become loose, unravel and slip down.
2
1, 3
Sewing foot for blind-hemming operations
Prepanng the sewing machine
Differential
feed setting: set at - (see page 27)
Needle:
remove needles A and...
Owner's Manual - Page 45
... iisngusoepderfoartioatntsacahriengcaprreiaerdls,ouspt awnigthlens,eesdtrlaessB
tapes, lead or C only. Stitch length: 3 to 4 mm Determine the proper thread
tension
by
sewing
a
trial
seam
(N
=
standard
setting)
Note: If the pearl tape is possible to sew
to 1.5 mm from the fabric edge (see page 27).
2. Set differential feed at - ,see Fig. 2).
-
43 knife;
6. Thread...
Owner's Manual - Page 46
...fabric cut off.
at - (see page 27)
Sewing foot: engage tape attaching foot
Thread
tension:
"N" (3 or 4 x)
Seam width: approx 4 to the rear under the foot. upwards.
213
1E Sewing foot for tape attaching
operations
This special sewing...-sew. Insert elastic tape and place it to 4.5 mm
Stitch length: approx. 4 mm
Elastic tape insertion:
Loosen screw -2- Preparing the machine:...
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