DURKOPP ADLER 745-34 Speedpocket User Manual

Index Page:
Part 3: Service Instructions 745-34 Speedpocket
1. General notes ................................................ 3
1.1 Gauges .................................................... 4
1.2 Grooveinthearmshaftcrank ...................................... 5
2. Sew ing machine head
2.1 Raising the sewing machine head .................................... 6
2.2 Removing / Installing the sewing machine head............................ 8
2.3 Crankpinatthearmshaft......................................... 10
2.4 Needle bar linkage ............................................. 13
2.4.1 Removing the needle bar linkage .................................... 13
2.4.2 Removing a needle bar from the linkage ................................ 15
2.4.3 Disassembly of the needle bar ...................................... 16
2.4.4 Assembly of a needle bar ......................................... 16
2.4.5 Installation of the needle bars in the needle bar linkage ....................... 17
2.4.6 Installation of the needle bar linkage .................................. 19
2.4.7 Height of the needle bar linkage ..................................... 21
2.4.8 Aligning the needle bar linkage to the throat plate .......................... 22
2.4.9 Exchanging the needle holder ...................................... 23
2.5 Hook...................................................... 24
2.5.1 Hookshaftheight.............................................. 24
2.5.2 Adjusting the gear clearance of the hook drive ............................ 25
2.5.3 Looping stroke................................................ 26
2.5.4 Height of the needle holders ....................................... 27
2.5.5 Distance between hook tips and needles ................................ 29
2.5.6 Needle protection .............................................. 31
2.5.7 Exchanging the hook ............................................ 32
2.5.8 Bobbin case holding wire ......................................... 33
2.6 Centerknife ................................................. 35
2.6.1 Removing / Installing the driving motor ................................. 35
2.6.2 Removing / Installing the switching cylinder .............................. 36
2.6.3 Adjustingtheknife ............................................. 37
2.7 Threadcontrollerspring.......................................... 39
2.8 Trimming and clamping device for the needle threads ........................ 40
2.8.1 Function ................................................... 40
2.8.2 Exchanging knife and thread catcher .................................. 41
2.9 Trimming and clamping device for the hook threads ......................... 43
2.10 Thread puller for the needle threads ................................... 46
2.11 Synchronizer................................................. 47
2.12 Oillubrication................................................ 48
2.12.1 Hooklubrication............................................... 49

DURKOPP ADLER 745-34 Speedpocket Specifications

General

Brand	DURKOPP ADLER
Model	745-34 Speedpocket
Category	Sewing Machine
Language	English