Pfaff 521 Instruction Manual page 5

Contents ................................................................................. Chapter - Page
11.
03 Altering existing seam programs ................................................................................. 11 - 5
11.
04 Deleting seam programs ............................................................................................. 11 - 8
11.
05 Seam programming examples .................................................................................... 11 - 9
11.
05.01 An example for seam program input ........................................................................... 11 - 9
11.
05.02 Seam input example using the Teach In method ........................................................ 11 - 16
12
Care and maintenance .............................................................................................. 12 - 1
12.
01 Cleaning ...................................................................................................................... 12 - 1
12.
02 Filling the oil reservoir ................................................................................................. 12 - 2
12.
03 Lubricating the bevel gears ......................................................................................... 12 - 2
13
Adjustment ................................................................................................................ 13 - 1
13.
01 Notes on adjustment................................................................................................... 13 - 1
13.
02 Tools, gauges and other accessories for adjusting ...................................................... 13 - 1
13.
03 Abbreviations .............................................................................................................. 13 - 1
13.
04 Adjusting the basic machine ....................................................................................... 13 - 2
13.
04.01 Needle position in the direction of sewing .................................................................. 13 - 2
13.
04.02 Positioning the needle crosswise to the direction of sewing ...................................... 13 - 3
13.
04.03 Limiting the needle bar frame ..................................................................................... 13 - 4
13.
04.04 Preadjusting the needle height .................................................................................... 13 - 5
13.
04.05 Hook-to-needle clearance, needle rise, needle height and needle guard ..................... 13 - 6
13.
04.06 Balancing weight ......................................................................................................... 13 - 8
13.
04.07 Bobbin-case-opener eccentric and retaining lug .......................................................... 13 - 9
13.
04.08 Bobbin case opener position ....................................................................................... 13 - 10
13.
04.09 Feed wheel ................................................................................................................. 13 - 11
13.
04.10 Clearance between roller presser and feed wheel ...................................................... 13 - 12
13.
04.11 Roller presser .............................................................................................................. 13 - 13
13.
04.12 Automatic presser-foot lifter ....................................................................................... 13 - 14
13.
04.13 Knee lever ................................................................................................................... 13 - 15
13.
04.14 Tension release ........................................................................................................... 13 - 16
13.
04.15 Thread check spring .................................................................................................... 13 - 17
13.
04.16 Bobbin winder ............................................................................................................. 13 - 18
13.
04.17 Roller presser pressure ............................................................................................... 13 - 19
13.
04.18 Re-engage safety coupling .......................................................................................... 13 - 20
13.
05 Adjusting the thread trimmer -900/61 ......................................................................... 13 - 21
13.
05.01 Preadjusting the control cam ...................................................................................... 13 - 21
13.
05.02 Roller lever .................................................................................................................. 13 - 22
13.
05.03 Engaging solenoid ....................................................................................................... 13 - 23
13.
05.04 Actuating lever ............................................................................................................ 13 - 24
13.
05.05 Connecting rod ............................................................................................................ 13 - 25
13.
05.06 Thread-catcher height ................................................................................................. 13 - 26
13.
05.07 Thread-catcher position ............................................................................................... 13 - 27
13.
05.08 Knife pressure ............................................................................................................. 13 - 28
13.
05.09 Bobbin-thread clamp spring ......................................................................................... 13 - 29
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