Pfaff 1540 user manual

User manual for the device Pfaff 1540

Device: Pfaff 1540
Category: Sewing Machine
Manufacturer: Pfaff
Size: 1.38 MB
Added : 1/5/2014
Number of pages: 106
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Summaries

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Abstracts of contents
Summary of the content on the page No. 1

Service Manual
1st Release August 2001

Summary of the content on the page No. 2

Summary of the content on the page No. 3

Page Contents 1 Foreword 3 Notes on the sewing machine in relation to environment, handling, cleaning and safety 5 Specifications off PFAFF machines 6 Removing the housing covers 8 Adjustment instructions Feeding system 1. Adjustment of toothed belt tension 13 2. Adjustment of feed dog in sideways direction on Pfaff 1520 14 3. Adjustment of feed dog in sideways direction on Pfaff 1530-1540 16 4. Adjustment of feed dog height 18 5. Adjustment of presser bar height on Pfaff 1520 19 6. Adjustment o

Summary of the content on the page No. 4

Stitching off 34. Adjustment of needle threader 64 35. Adjustment of bobbin winder stop 66 36. Adjustment of bobbin thread tension 67 37. Adjustment of needle thread tension 68 38. Adjustment of thread check spring stroke 70 39. Adjustment of equal stitch length for left and right buttonhole seams 72 40. Adjustment of equal forward and reverse stitch length 73 (for forward and reverse controlled utility stitches) 41. Making up a sewing sample 74 Repair Instructions 42. Removing and fitting the n

Summary of the content on the page No. 5

Foreword The purpose of this service manual is to assist you in quick and correct repair of the machines. Adjustments should only be made if the settings deviate from the requirements described in this manual. When checking or adjusting a machine, always proceed in the order of the worksteps prescribed. For easier reference, each workstep is identified by a number. Different operational procedures are indica- ted by a circle or a square. The indications "left", "right", "top", "bottom", "front"

Summary of the content on the page No. 6

For the proper adjustment of the machine, the following gauges and tools are required: Needle rise gauge: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .00-870136-01 Needle rise clamp: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .00-870137-01 Spacer: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63-102600-18 Adjustment gauge for the bobbin case holder: . . . . . . . . . . . . . . . .

Summary of the content on the page No. 7

Notes on the sewing machine in relation to environment, handling, cleaning and safety Environment: The recommended operating ranges are as follows: Ambient temperature -10°C to 40°C (50° to 104°F) Air humidity 20 % to 80 % This machine is a high-quality electro-mechanical device. It is designed for household purposes and should always be supervised when in use. Make sure that it is not subjected to: dust, severe dampness, direct sunlight, static electricity, heat-produ- cing objects, corrosive c

Summary of the content on the page No. 8

Specifications of PFAFF machines PFAFF 1540 Electronic free-arm utility stitch machine with 40 sewing programs (push buttons). A straight stitch program with 15 needle positions. A zigzag program with 15 needle positions. A buttonhole program with adjustable width. 37 utility stitches. High-ohm foot control (cold) with torque raising. Dual fabric feed. Needle threader. PFAFF 1530 Electronic free-arm utility stitch machine with 15 sewing programs (program dial). A straight stitch program with 15

Summary of the content on the page No. 9

Maintenance-free PFAFF transverse double-rotating hook Link take-up lever Linkage-type feed regulator Dual fabric feed Disengageable feed dog Needle threader Drive from motor to handwheel by flat-toothed belt 60-1000 stitches per minute Sintered metal bearings Oil for sintered metal bearings: BP Energol HLP 46 or HLP 80 No. 28-036550-09 Oil for sewing hook No. 91-129452-91 Clear workspace: 175, 114, 205 mm Machine height: 280 mm Baseplate dimensions: 390, 155 mm Free arm dimension

Summary of the content on the page No. 10

Removing the housing covers Note: Before adjusting or repairing the machine, make sure to remove the housing covers as described in this manual. Disconnect the machine's main plug. Remove needle and presser foot. Remove detachable work support. Remove top cover. Switch on bobbin winder. Remove the two Torx screws of the housing insert.. Remove housing insert. Lay the machine on its back and remove the four fastening screws of the baseplate. Remove baseplate. Remove the two fastening sc

Summary of the content on the page No. 11

Loosen the fastening screws 4, 5, 6 and 7 of the rear housing shell (fig. 3 and 4). Loosen the snap connections by pressing with your thumb on the spots marked with arrows on the inner surface of the arm (fig. 5). Remove the rear housing shell. Remove motor cover. 9

Summary of the content on the page No. 12

Loosen the fastening screws 8, 9, and 10 of the front housing shell (fig. 5 and 6). Remove fastening screws 10 and 11. 10

Summary of the content on the page No. 13

Remove fastening screw 12 (fig. 7). Switch on the top key row of the utility stitch unit. Carefully remove the front housing shell by lifting it off. The assembly must be carried out in reverse order. 11

Summary of the content on the page No. 14

Notes: 12

Summary of the content on the page No. 15

Feeding system 1. Adjustment of the toothed belt tension Requirement: The toothed belt must be so taut that the sewing hook has no play in its direction of rotation. However, it must be possible to turn the machine easily. Adjustment: Loosen screw 1 (fig. 1) Re-position tensioning roller 2 with a screwdriver as required. Tighten screw 1. Check: Check adjustment according to the "Requirement". Press lightly against the middle of the toothed belt (250 g). The toothed belt should move forward

Summary of the content on the page No. 16

2. Adjustment of feed dog in sideways direction on Pfaff 1520 Requirement: The left and right clearance of the feed dog in the feed slot must be the same (fig. 2). Check: Carry out a visual check of the feed dog position. Adjustment: Loosen the two screws 3 and 4 (fig. 2a). Loosen screw 5. Detach spring 6. Re-position feed-dog driving shaft 7 with the two cylindrical pins 8 and 9 sideways until the feed dog is centered in the feed slot. Firmly tighten the two screws 3 and 4. Push bolt 11

Summary of the content on the page No. 17

15

Summary of the content on the page No. 18

3. Adjustment of feed dog in sideways direction on Pfaff 1530-1540 Requirement: The left and right clearance of the feed dog in the feed slot must be the same (fig. 3). Check: Carry out a visual check of the feed dog position. Adjustment: Lay the machine on its back. Loosen screw 12 (fig. 4). Remove bolt 13 to the right. Loosen screw 5. Remove circlip 14. Remove bolt 11. Loosen both screws 3 and 4. Re-position feed-dog driving shaft 7 with the two cylindrical pins 8 and 9 sideways until

Summary of the content on the page No. 19

17

Summary of the content on the page No. 20

4. Adjustment of feed dog height Requirement: At the highest working position of the feed dog, the tips of the feed dog teeth must protrude above the needle plate surface by 0.9 mm (fig. 6). Check: Remove the needle. Remove the presser foot. Set the maximum stitch length. Place bridge gauge (63-112120-08) over the feed dog onto the needle plate. Turn the handwheel until the feed dog has reached its highest working position. Carry out a visual check. The feed dog must not touch the gauge,


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