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Pfaff 145 - page 1
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Pfaff 145 - page 2
1. General The Pfatf 145 is a special-purpose sewing machine equipped with unison feed, smoothly working sleeve take-up and vertical rotary hook, which sews forward and backward. It is chiefly used for sewing multiple plies where it is important that all finish out evenly. Its permissible top speed is 2,800 s.p.m. When sewing tightly woven and heav ...
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Pfaff 145 - page 3
3. Cleaning and Oiling Careful cleaning and regu’ar oiling will increase the service life of your machine. After you have removed the dust which has accumulated on the machine in transit, take a clean rag and remove the grease from all nickel-plated and polished parts. Apply a few drops of kerosene to all oiling points marked by arrows in Figs. 1 ...
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Pfaff 145 - page 4
From time to time remove the needle plate after taking out set screws 1 and 2 (Fig. 4) and remove the lint which has accumulated underneath. The cleaning of the hook is dis cussed in Chapter 13. R 9927 I Fig. 3 R 9928 Fig. 4 3 ...
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Pfaff 145 - page 5
4. Winding the Bobbin Place a spool of thread on pin 1 (Fig. 5) and pass the thread from left to right through eyelet 2, clockwise around and between tension discs 3 and from the inside through the slot in the bobbin. Wind a few turns of thread on the bobbin and place the latter on spindle 4. Start the bobbin winder by pressing down lever 5. The bo ...
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Pfaff 145 - page 6
5. Changing the Bobbin and Threading the Bobbin Case Raise the needle to its highest position and open the bed slide. With the thumb of your right hand open latch B (Fig. 6), then push the thumb nail under the projecting flange C of the bobbin case cap and lift the latter out of the machine with thumb and fore finger. The bobbin is now exposed in t ...
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Pfaff 145 - page 7
6. Setecting the Correct Need!e To ensure a reliable stitch formation, make sure the correct needle is inserted in the machine. Needle Systems The Pfaff 145 unison-feed machine in Models H 1 and H 2 uses System 134 needles, while Model H 3 uses System 134-35, and Model H 4 System 190 needles. Needle Point Styles These needles are available with dif ...
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Pfaff 145 - page 8
Select the proper needle and thread sizes from the chart below: Model Needle Size Cotton Silk Synthetic Linen 60 130/3 140/3 200/3—150/3 130/4 A 70 100/3 120/3 140/3—120/3 H1,H2 100/4 80 80/3 100/3 120/3—100/3 80/4 90 70/3—60/3 80/3 100/3— 80/3 70/3 70/4—60/4 B 100 50/3—40/3 70/3 70/3 60/3 H 1, H 2, H 3 50/4—40/4 110 30/3 60/3 60/3 ...
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Pfaff 145 - page 9
7. Changing the Needle Raise the needle bar to its highest point, loosen needle set screw A (Fig. 8) half a turn, and pull the damaged needle out of the needle clamp. Insert a new needle into the clamp, making sure that its short groove faces toward the sewing hook. Push the needle up as far as it will go and tighten needle set screw A securely. Ne ...
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Pfaff 145 - page 10
9. Drawing Up the Bobbin Thread Hold the end of the needle thread and turn the balance wheel toward you, as indicated by an arrow in Fig. 1, until the needle moves down and up again. As the needle moves up, it catches the bobbin thread which comes up with it through the needle hole. Lay both threads back under the presser foot, place the material i ...
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Pfaff 145 - page 11
Adjusting the Lower Tension The tension is correct if a noticeable resistance of spring V (Fig. 7) has to be overcome when pulling the thread out of the bobbin case. Take the bobbin case out of the machine and regulate the tension by turning screw Z, (Fig. 7) with the hook screwdriver, as appropriate. Turn this screw clockwise for a tighter tension ...
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Pfaff 145 - page 12
12. Regulating the Pressure on the Materia’ The amount of pressure to be exerted by the presser foot must be adapted to the material to be sewn. The pressure is set correctly if the material is advanced through the machine evenly without being injured by the teeth of the feed dog. The pressure on the material is regulated by turning knurled nut V ...
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Pfaff 145 - page 13
14. The Safety Clutch Model C and D machinee are equipped with a safety clutch which prevents disturbance of the hook timing and damage to the bobbin case base in case of thread jamming in the hook raceway. If an irregulary spun needle thread should jam in the hook raceway and block the sewing hook, the safety clutch automatically disengages the ho ...
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Pfaff 145 - page 14
16. Setting the Foot Lift To adapt the foot lift to the thickness of the material to be sewn, loosen wing nut F (Fig. 15) and adjust the position of lifting eccentric connection H in the slot of the lifting crank. Move the connection upward for a higher foot lift, or downward for a lower foot lift. R 9935 Fig. 15 13 ...
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Pfaff 145 - page 15
17. Operating the Treadle of the Pfaft 145 Equipped with -900 Thread Puller/Trimmer On special request, the Pfaff 145 in Models A and B can be equipped with the time- and cost-saving subcl. -900/06 thread puller/trimmer. On subcl. -900/02 machines, thread trimming, needle positioning and reverse sewing are all controlled by operating two treadles. ...
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Pfaff 145 - page 16
18. Trouble Shooting Machine Skips Stitches Cause Remedy Wrong needle system. For correct needle system see Chapter 6. Needle bent. Insert new needle as instructed in Chapter 7. Needle inserted incorrectly. Orient needle so that its short groove faces toward the sewing hook. Incorrect threading. Thread needle as instructed in Chapters 5 and 8. Thre ...
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Pfaff 145 - page 17
1. General ., 2. Fundamentals of Machine Operations 3. Cleaning and Oiling 4. Winding the Bobbin 5. Changing the Bobbin and Threading the Bobbin Case 6. Selecting the Correct Needle Needle Systems Needle Point Styles Needle and Thread Sizes 7. Changing the Needle 8. Threading the Needle 9. Drawing Up the Bobbin Thread 10. Regulating the Thread Tens ...
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Pfaff 145 - page 18
C PFAFFD® Nr. 296-12-12965 engl. P 769 Printed in Germany ...
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Pfaff 145 - page 19
Component Parts for the Pfaff 145 in Models A,B,C,D and H1,H2,H3,H4 Model Part Name Hi H2 H2 H3 H3 H4 A;B A;B C B C;D C;D c Standard 91-009 389-92 91-009 389—92 version 91—009 388—92 91-009 388—92 91-009 389—92 91—009 388—92 Balance wheel D 91-015 652—92 9115 652—92 =L 91—010 131 9iDiO133-91 9110 21 91-010 1 91310_172-91191-010_ ...
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