Pfaff 937 User Manual

Index
Contents ................................................................................Chapter- Page
9 Preparation ............................................................................................................... 9- 1
9.01 Inserting the needle................................................................................................... 9 - 1
9.02 Winding the bobbin thread, adjusting the thread tension .......................................... 9 - 2
9.03 Removing/inserting the bobbin case ......................................................................... 9 - 3
9.04 Threading the bobbin case, adjusting the thread tension .......................................... 9 - 3
9.04.01 PFAFF 937 without thread trimmer -900/.. ................................................................ 9 - 3
9.04.02 PFAFF 937 with thread trimmer -900/.. ..................................................................... 9 - 4
9.05 Threading the needle thread...................................................................................... 9 - 5
9.06 Adjusting the needle-thread tension .......................................................................... 9 - 5
9.07 Adjusting the zigzag stitch and needle position ......................................................... 9 - 6
9.08 Adjusting the stitch length ......................................................................................... 9 - 6
9.09 Adjusting the top feed ............................................................................................... 9 - 7
9.09.01 Normal sewing........................................................................................................... 9 -7
9.09.02 Applying fullness constantly ...................................................................................... 9 - 8
9.09.03 Applying fullness intermittently ................................................................................. 9 - 9
9.09.04 Constant braking of the top fabric ply (stretching) ..................................................... 9 -10
9.09.05 Braking the top fabric ply or intermittently applying fullness ..................................... 9 -11
10 Care and maintenance........................................................................................... 10 - 1
10.01 Cleaning ................................................................................................................... 10- 1
10.02 Lubricating the hook ................................................................................................ 10 - 2
10.03 Lubricating the zigzag drive...................................................................................... 10 - 2
10.04 Checking the air pressure ........................................................................................ 10 - 4
10.05 Emptying/cleaning the water container of the air filter/regulator ............................. 10 - 4
11 Adjustment ............................................................................................................. 11 - 1
11.01 Notes on adjusting ................................................................................................... 11 - 1
11.02 Tools, gauges and other accessories....................................................................... 11 - 1
11.03 Abbreviations ........................................................................................................... 11 - 1
11.04 Check and adjustment aid........................................................................................ 11 - 2
11.05 Adjusting the basic machine .................................................................................... 11 - 3
11.05.01 Balancing weight...................................................................................................... 11 - 3
11.05.02 Centering the needle in the needle hole (in sewing direction) ................................. 11 - 4
11.05.03 Parallel guiding of the needle bar ............................................................................. 11 - 5
11.05.04 Locking lever............................................................................................................ 11 - 6
11.05.05 Zero stitch and zigzag stitch scale ........................................................................... 11 - 7
11.05.06 Centering the needle in the needle hole (across sewing-direction).......................... 11 - 8
11.05.07 Zigzag stitch width ................................................................................................... 11 - 9
11.05.08 Zigzag stitch motion................................................................................................. 11 -10
11.05.09 Needle penetration symmetry ................................................................................. 11 -11
11.05.10 Needle position adjustment lever ............................................................................ 11 -12
11.05.11 Adjustment wheels for applying fullness ................................................................. 11 -13
11.05.12 Zeroing the differentiation........................................................................................ 11 -14
11.05.13 Main-stitch-length display ........................................................................................ 11 -15
11.05.14 Zeroing the bottom feed (with gearbox housing closed).......................................... 11 -16
11.05.15 Zeroing the bottom feed (with gearbox housing open) ............................................ 11 -17
11.05.16 Vibrating presser connecting rod ............................................................................. 11 -18

Pfaff 937 Specifications

General

Brand	Pfaff
Model	937
Category	Sewing Machine
Language	English