Pfaff 471 Instruction Manual page 4

Index
Contents ..................................................................................Chapter - Page
8
.03 Switching the machine on / off ...................................................................................... 8 - 5
9
Setting up ..................................................................................................................... 9 - 1
9
.01 Inserting the needle on model 471 and 491 .................................................................... 9 - 1
9
.02 Inserting the needle on model 474 ................................................................................. 9 - 2
9
.03 Winding the bobbin thread; adjusting the primary thread tension ................................... 9 - 3
9
.04 Removing / Inserting the bobbin case ............................................................................ 9 - 4
9
.05 Threading the bobbin case / Adjusting the bobbin thread tension ................................... 9 - 4
9
.06 Threading the needle thread and regulating its tension on model 471/491 ...................... 9 - 5
9
.07 Threading the needle thread and regulating its tension on model 474 ............................. 9 - 6
9
.08 Setting the stitch length ................................................................................................. 9 - 7
10
Care and maintenance ................................................................................................10 - 1
10
.01 Cleaning .......................................................................................................................10 - 1
10
.02 Oiling the hook .............................................................................................................10 - 2
10
.03 Filling the oil reservoir of the thread lubrication unit ....................................................... 10 - 3
10
.04 Lubricating the bevel gears ........................................................................................... 10 - 3
10
.05 Checking / adjusting the air pressure ............................................................................ 10 - 4
10
.06 Cleaning the air filter of the air-filter / lubricator ............................................................. 10 - 4
11
Adjustment ..................................................................................................................11 - 1
11
.01 Notes on adjustment .................................................................................................... 11 - 1
11
.02 Tools, gauges and other accessories ............................................................................ 11 - 1
11
.03 Abbreviations ................................................................................................................ 11 - 1
11
.04 Adjusting the basic machine ..................................................................................... 11 - 2
11
.04.01 Adjusting the synchronizer ............................................................................................11 - 2
11
.04.02 Needle position in sewing direction on the PFAFF 471 and 491 ..................................... 11 - 3
11
.04.03 Needle position in sewing direction on the PFAFF 474 ..................................................11 - 4
11
.04.04 Preliminary adjustment of the needle height .................................................................11 - 5
11
.04.05 Needle rise, hook clearance, needle height and needle guard on the PFAFF 471 ...........11 - 6
11
.04.06 Needle rise, hook clearance, needle height and needle guard on the PFAFF 474 ...........11 - 8
11
.04.07 Needle rise, hook clearance, needle height and needle guard on the PFAFF 491 ...........11 - 10
11
.04.08 Needle position crosswise to sewing direction on the PFAFF 471 .................................11 - 12
11
.04.09 Needle position crosswise to sewing direction on the PFAFF 474 .................................11 - 13
11
.04.10 Needle position crosswise to sewing direction on the PFAFF 491 .................................11 - 14
11
.04.11 Height of the bobbin-case opener.................................................................................. 11 - 15
11
.04.12 Bobbin-case opener stroke ........................................................................................... 11 - 16
11
.04.13 Height of the feed wheel on the PFAFF 471 ..................................................................11 -17
11
.04.14 Height of the feed wheel on the PFAFF 474 ..................................................................11 - 18
11
.04.15 Height of the feed wheel on the PFAFF 491 ..................................................................11 - 19
11
.04.16 Stitch length control eccentric .......................................................................................11 -20
11
.04.17 Stitch length scale disk ................................................................................................. 11 - 21
11
.04.18 Shaft crank to feed wheel drive ....................................................................................11 - 22
11
.04.19 Shaft crank to roller presser drive .................................................................................11 - 23
11
.04.20 Clearance between roller presser and feed wheel .........................................................11 - 24
11
.04.21 Roller presser ...............................................................................................................11 - 25
11
.04.22 Stitch length on stitch length scale ............................................................................... 11 - 26
11
.04.23 Synchronization of roller presser and feed wheel .......................................................... 11 - 27
11
.04.24 Retainer (only on model 474) ........................................................................................ 11 - 28
11
.04.25 Knee lever ....................................................................................................................11 - 29