Table of Contents

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Contents

Contents ..................................................................................Chapter - Page
8
.02
Commissioning ............................................................................................................. 8 - 9
8
.03
Switching the machine on/off ........................................................................................ 8 - 9
8
.04
Table top cutout ............................................................................................................. 8 - 10
9
Preparation ................................................................................................................... 9 - 1
9
.01
Inserting the needle ....................................................................................................... 9 - 1
9
.02
9
.03
Removing/Inserting the bobbin case .............................................................................. 9 - 3
9
.04
Inserting the bobbin case / Adjusting the bobbin thread tension ..................................... 9 - 3
9
.05
10
Care and maintenance ................................................................................................10 - 1
10
.01
Cleaning the machine ...................................................................................................10 - 1
10
.02
Checking the oil level / filling in oil ................................................................................10 - 2
10
.03
Adjusting the lubrication ...............................................................................................10 - 3
10
.03.01
Lubricating the needle head parts .................................................................................10 - 3
10
.03.02
Hook lubrication ............................................................................................................10 - 3
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
Pre-adjusting the needle height ..................................................................................... 11 - 2
11
.04.02
Setting the bottom feed dog at its neutral position ........................................................11 - 3
11
.04.03
Bottom feed dog motion .............................................................................................. 11 - 4
11
.04.04
Bottom feed dog position .............................................................................................. 11 - 5
11
.04.05
11
.04.06
Thread check spring and thread regulator .....................................................................11 - 7
11
.04.07
Knee lever stop ............................................................................................................. 11 - 8
11
.04.08
Presser foot pressure ...................................................................................................11 - 9
11
.05
Adjusting the thread trimmer -900/93 .......................................................................11 - 10
11
.05.01
Adjusting the synchronizer ............................................................................................11 - 10
11
.05.02
Adjusting the control cam .............................................................................................11 - 11
11
.05.03
Position of the stationary knife ......................................................................................11 - 12
11
.05.04
Needle thread tension release .......................................................................................11 - 13
11
.06
Adjusting the thread wiper -909/93 ............................................................................... 11 - 14
11
.07
Adjusting the automatic presser foot lift -910/93 .......................................................... 11 - 15
11
.08
Adjusting the backtacking mechanism -911/93 ............................................................11 - 16
12
Wearing parts ............................................................................................................. 12 - 1

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