
1 MA_441-1-2_A1_180830_en
Mechanic’s instructions
STROBEL Class 441-1 and 441-2
Contents
1General notes on safety............................................................................................4
2General notes............................................................................................................6
2.1 Operating instructions.....................................................................................6
2.2 Class designations, machine number and initial basis for descriptions..........6
2.3 Applications of the machine use as intended.................................................6
2.4 Technical data................................................................................................7
2.5 Abridged version of adjustment manual.........................................................8
3Disassembly of the machine ...................................................................................10
3.1 Disassembly of the front main shaft (Fig. 1 to Fig. 5)...................................10
4Assembly of the machine........................................................................................14
4.1 Assembly of the shaft (Fig. 4, Fig. 6 and Fig. 7)...........................................14
4.2 Assembly of the stitch variable eccentric (Fig. 4, Fig. 5, Fig. 6, Fig. 7).........14
4.3 Setting the ecc. pin for stitch adjustment (Fig. 4 and Fig. 8)........................15
4.4 Setting of the needle and transport movement.............................................16
4.5 The looper movement...................................................................................17
4.5.1 Setting the looper movement...........................................................17
4.5.2 Setting the looper eccentric..............................................................18
4.5.3 Setting the front crank......................................................................19
4.5.4 Setting the front looper position to the feed cup ..............................19
4.5.5 Setting the loop stroke .....................................................................19
4.5.6 Setting the rear bearing bracket.......................................................20
4.6 Height adjustment of the feed cup................................................................20
4.7 Assembly of the front cup.............................................................................20
4.8 Tread lifting in the needle bar head..............................................................22
4.9 Spring tension at the plate bearing arm........................................................22
4.9.1 Plate arm lifting................................................................................22
4.10 Needle setting...............................................................................................23
4.10.1 Height adjustment of the needle (Fig. 13)........................................23
4.11 Replacing the looper.....................................................................................24
4.12 Thread trimmer (optional).............................................................................25
4.12.1 Calibration........................................................................................25
218.05.10