These Service Inst ructions 558 de s c ribe in a practic a l o r de r th e
settings for the sewing ma chi ne.
ATTENTION
The tasks described in the service instructions may only be conducted
by specialists or suitably trained personnel !
Since various setting positions are interdependent it is essential that
the settings be made keeping to the order described.
ATTENTION Danger of Breakage
After disassembly and before recommissioning of the sewing machine
the testing d es cribed in the Ch ap te rs 11 ,1 2,14,16,18,24 a nd 28 is t o
be conducted !
With mater i al in pl ac e an d t h e ne ed le ma k in g a stitch the m ac h in e m ay
not be advanced using the hand crank.
Caution Risk of Injury
Prior to repair, conversion and maintenance work pull the mains plug.
Adjustment work and function testing with the machine running may
only be conducted with the greatest caution while observing all safety
measures.
3
2. Handwheel
1
2
3
6
4
7
5
The freeing of the drive pulley 6 when turn in g off the machin e i s do ne
by disengaging the handwheel 1.
The timing for the disengagement is determined by the switch surface
3.
The turn- o ff li nk 5 wi th th e r o ll er 4 lies onto the ha nd wheel.
When reaching the switch surface it releases and the disengaging
roller 2 falls in to disengage the handwheel.
Caution Risk of Injury !
Pull the main s pl ug be fore s et t in g .
In order that the full sewing speed not become effective at the brake
lever 7, the handwheel, however, reaches the end position (needle
high positio n) with certainty, it must be set as follows:
8
9
With the catch groove 8 of the brake cam 9 standing vertical at the top
the roller 4 s ho ul d l ie op posite the switch s u r face.
4
10
11
12
13
–
Loosen and re move lock nut s 12 .
Attention Pressure spring !
–
Loosen screws 10.
–
Swing the coupling lever 13 to the back.
–
Pull off handwheel 1.
–
Place the han dwheel on the mult i-key pro f ile of th e arm shaft a s
described.
–
Reset the correct locating pressure of the handwheel.
For this screw on lock nuts 12 so far that the threaded bolt 11 juts
out about 2 mm.
–
Tighten screws 10 .
By deviations from th e n ominal speed
The above described setting of the handwheel must be changed if the
motor, because of the allowable voltage range, does not reach the
given nominal spee d.
higher
With
–
Position the handwheel s o t ha t, wi th th e a bove se tt in g, th e c a tc h
groove 8 of the brake cam 9 lies farther to the back.
The turn-off position is reached
lower
With
–
Position the handwheel s o t ha t, wi th th e a bove se tt in g, th e c a tc h
groove 8 of the brake cam 9 lies farther to the front.
The turn-off position is reached
ATTENTION !
Danger of needle b r ea kag e a nd da ma ge to th e m at erial when the
quick transport is activated !
By the following sett in g i t mu s t b e a s s ured that the hand wh ee l r e ac h es
the end position (Needle high position) with certainty.
Check the settin g of the handwhee l a s wel l as th e b ra k in g e ffect by
repeatedly turning on the machine !
sewing speed:
sewing speed:
earlier
later
.
.
5
3. T urn-off Lever
1
2
3
4
5
6
7
8
9
10
11
12
The turn-off lever 1 is set with the gauge (Order no. 558 1635).
Caution Risk of Injury !
Pull the main s pl ug be fore s et t in g .
–
Loosen screw 11 .
–
Set stop 9 as far forward as possible.
–
Loosen screw 2.
–
Press the tu rn-on link 3 manu al ly t o t he ba ck.
The idle lever 8 fall downward and enc o mp as s e s wi th it s gr oove
the pin 5.
–
Hold the idle lever 8 down.
At the same time turn the hand c ra nk drehen until the r olle r 6 o f t he
turn-on li nk 3 rea c he s th e h ig he s t p oi nt of th e overr u n s u rface 7 o f
the length s et ti ng s lide.
–
Tighten screw 2 again.
–
Loosen screws 4.
–
Between the setting plate 10 of the turn-off lever 1 and square
stone 12 set a clearance of 0.5 mm.
Use the gaug e for th is.
When the edge is worn (after a longer period of switching use) turn
the square stone 90°.
The correct position of the square stone is always shown by a
groove.
–
Tighten screws 4 again.
6
4. Brake Le ver
1
2
3
4
5
6
7
8
9
10
11
Through the br ake lever 11 the ha nd wh eel is arrested i n t he en d
position of the machine (needle high position).
For this the leaf spring assembly 5 falls in to th e gr o ove of th e b ra ke
cam 2.
The brake lever is set with the gauges (Order no. 558 1636 for 1 mm
and 558 1634 for 0.3 mm ).
Caution Risk of Injury !
Pull the main s pl ug be fore s et t in g .
–
–
–
–
512
–
–
Lift the id le lever 7.
The turn-on link 6 jumps from the highest point of the length setting
slide (see setting chapter 3).
The square stone 8 moves under the setting plate 9 of the turn-off
lever 1 and arrests the three-armed lever 10.
Loosen attachment screw 3.
Between leaf s pr i ng 5 o f the brake lever 11 and the posi tion of
greatest eccentricity of the brake cam 2 set a clearance of 1.3 mm.
To measure the clearan c e u s e t he ga ug es ( Or d er n o. 558 1636 for
1 mm and 558 1634 for 0.3 mm ).
Set the brake lever tight.
For this insert a screwdriver between the sides o f the machine arm
and the clamping block 4.
Press the screwdriver to the right and hit lightly against the shaft
end 12.
Tighten attac h me nt s c rew 1 ag ai n.
Check the clearance of 0.5 mm as per chapter 3 and the dimension
1.3 mm again.
If necessary, it is essential to correct the required dimensions!
7
4.1 A uxili ary Brak e
1
2
3
4
5
6
7
8
The auxiliary brake supplements the brake lever with the spring
assembly for brakin g. A greater se rviceable life of t he s pring assembly
is thus achieved.
Caution Risk of Injury !
Pull the main s pl ug be fore s et t in g .
–
Bring the machine in the end position.
–
Loosen screw 2.
–
Turn the leve r 3.
The clearance be twe en th e auxiliary br ake 1 an d t he bo lt 5 s h ou ld
be 2 mm.
–
Tighten screw 2 again.
–
With the buttonh ol e m ac h in e t urned on there mus t be an ai p g ap
between brake shoe and disc.
If necessary, reset lever 3.
–
Loosen screws 4.
–
Move bracket 6.
With the spring attached to bracket 6 the braking effect of the
auxiliary brake is generate d.
–
Tighten screws 4 again.
–
Check the functioning of the auxiliary brake.
With the brak in g e ffect s e t t oo hi gh th e butt on ho le ma c hi ne do es
not run into the end position.
–
Tilt up the machine head.
–
Loosen screw 7.
–
Set stop 8.
The stop 8 secures the aux i li ary brake dur i ng ti lt in g up of the
machine head. It is set so that the spring of the brake lever holds
with a slight drawing tension.
–
Tighten screw 7 again.
8
5. Coupling Le ver
1
9
2
10
11
3
4
12
5
6
13
7
8
The coupling lever is set with the gauge (Order no. 558 1634).
Caution Risk of Injury !
Pull the main s pl ug be fore s et t in g .
–
Arrest the three-armed lever 13 as described in chapter 3.
–
Swing the coupling lever 8 with its roller 6 up to a distance of 0.3
mm from the ha nd wh ee l 3 .
The gauge is us e d t o m ea s ure th e distance.
–
Slide the coupling lever sideways so that the disengaging roller 4
juts out about 0.5 mm beyond the edge 1 of the coupling path 2.
–
Tighten screws
Checking the Settings:
–
Pull the turn-off lever 12 in the direction of the arrow.
The three-armed lever is released and the roller 6 lays onto the
handwheel.
There must still be an air gap between the leaf spring 11 and the
position of gre at es t ec ce ntricity of the br ake c a m 1 0.
–
Turn the handwheel 3 farther in direction of the arrow up to the
turn-off po sit ion.
Upon reaching th e switch surface 5 the tur n - of f l in k 7 is r el ea sed .
The disengaging roller 4 falls in the coupling path 2 and frees the
drive pulley 9.
The clearance between drive pulley 9 and handwheel 3 should be
about 0.3 mm at th e n ar rowes t po int.
–
If necessary, correct the sideways position of the coupling lever.
10 (page 5)
again.
Attention !
The previously set c l ea ra nce be tween roller 6 and ha nd wh eel 3 must
be retained hereby.
9
6. High-speed Wheel
1
2
3
4
5
6
7
8
9
10
11
After tur n in g the handwheel into the turn- o ff po s it io n (n eedle high
position) the c at ches 8 of the high- s pe ed wh ee l grip in the catc he s 3 o f
the feeding shaft. The changeover from sewing to qu ick tra nsport is
established.
The setting of the correct clearance between the catches is made with
the gauge (Order no. 558 1636).
Caution Risk of Injury !
Pull the main s pl ug be fore s et t in g .
–
Press the coupling lever 6 manually so far back that the
three-armed lever 9 with the squar e stone 7 is arrest ed un der the
turn-off lever 1.
–
Pull the turn-off lever 1 forward.
The three-a rmed lever 9 is releas e d.
The roller 4 of th e turn-off l in k 5 l ays on to th e h an dw he el .
The tur n in g o ff of the sewing pr oc e du r e i s initiated.
–
Loosen nut 2 on th e reversing l ever 10.
–
Set the carrier bush 11 with the high-speed wheel.
The clearance between the catches 8 of the high-speed wheel
and the catches 3 of the feeding shaft should be 1 mm.
Use the gaug e t o m ea s ur e th e c lea ra nc e.
–
Turn the handwh ee l t o t he tu rn-off posit io n ( n ee dl e h ig h p osi ti on ) .
The catches grip into one anothe r. The changeover from sewing to
quick transpor t is established.
10
7. Turn-on Link with Idle Lever
1
2
3
4
5
For sure star ting of the sewing drive the groove in the idle lever 4 must
freely enclose the pin of the roller screw.
When running into the turn-off position the turn-on link 1 is pressed so
far back by the s top 3 that the i dle lever can fall in.
Caution Risk of Injury !
Pull the main s pl ug be fore s et t in g .
–
Bring the m at erial support plate by turning the ha nd c rank i nt o t he
absolute end position
The end positi on is r e ac h ed wh en th e m aterial support plate n o
longer moves to the re ar.
–
Press the turn-on link 1 to the back.
The idle lever 4 falls down wa rd.
–
Loosen screw 5.
–
Set the stop 3 to in front of the pin 2 of the roller screw.
Attention !
The pin may not be trapped in the groove of the idle lever.
–
Tighten screw 5 a ga in .
.
11
8. Setting Lever f or Stitches in the Eye
1
2
3
4
5
6
7
8
The stitches i n t he eye of th e butt onhole can be set de ns e r by pull in g
forward the stitc h l en gt h r e gu lating rail 5.
In the area of th e eyes the r ol ler 7 d r op s in the curved pat h 9 or the
roller 7 is raise d by t he c urved path 9.
Through the setting lever 1 this causes a reduced or increased
transport advance of the material support plate.
Caution Risk of Injury !
Pull the main s pl ug be fore s et t in g .
The setting occurs when the roller 7 is on the straight part of the stitch
length regulating rail 5.
–
Loosen screw 6.
–
Set the sett in g l ever 1 at an an gl e o f a bo ut 6° fr o m t he vertical to
the back.
–
Tighten screw 6 again.
–
Loosen screws 8.
–
9
9
Set the spr in g s t op 4 s o th at s pring 3 touches th e p in 2 a nd th er e is
a clearance of 1 mm between spring stop 4 and spring 3.
In this way the setting lever 1 is stabilized in its position during
sewing of the two seam rows.
When the roll er 7 r uns into the curved path 9 the se tting lever 1
moves forward or back.
During th is m ovement s eq ue nc e th e s p ring stop 4 inter ce pts the
spring pressure.
12
9. Brake Strap
1
2
3
4
5
The brake strap lies as a semi-circle around the main control disc in
the forward part of the housing.
The main control disc should only be braked so much that the needle
positions in b ot h s e am row s ap pe ar u ni for m .
A brake strap set too loose can cause noises in the buttonhole
machine.
Caution Risk of Injury !
Pull the main s pl ug be fore s et t in g .
–
Loosen lock nut 5.
–
Loosen brake cl am ps 2 .
For this turn back the pressure screw 3.
–
Loosen lock nut 4.
–
With the brake str ap lo os e run the machin e t hro ug h v i a t he ha nd
crank.
–
Tighten the setting screw 1 by stages.
At the same time check the braking effect by turning the hand
crank. Normally onl y a very slight br ak i ng is required.
–
Tighten lock nut 4 a ga in .
–
Set the brake cl am ps 2 as per chapter 10.
13
10. Brake Clamp
1
2
3
4
5
The brake clamp 2 br akes t he feeding s ha ft 1.
The braking should thereby be only so strong that during running of
the machine t he tran s po rt the mat erial support plate oc c urs a bs o lu te ly
uniform.
The setting of th e b ra k in g force o c c urs t hr o ug h t urning the pre s s ure
screw 3.
Caution Risk of Injury !
Pull the main s pl ug be fore s et t in g .
–
By sliding the transport lever 6 in direction of the arrow set the
greatest tran s po rt movement of the material support pla te.
–
Tu rn the handwh ee l forwar d.
The transport lever moves up and the tran s po rt stroke is executed.
The lever 4 is moves onward by a certain amount.
–
Tu rn the handwh ee l
The transport lever moves down and t he id le s tr o ke is executed.
This movement should have no effect on the feeding shaft.
The lever 4 remains in its position !
–
Set the brakin g force a c c ordingly by turni ng th e p r es sure screw 3.
–
Tighten lock nut 5 ag ai n.
to the back
.
6
14
11. Cloth Clamp Height
1
2
3
4
5
The clearance between the upper cloth clamps 2 and the lower cloth
clamps 3 shou ld be 10 mm .
The clearance is set with the gauge 3 (Order no. 558 1633) eingestellt.
Caution Risk of Injury !
Pull the main s pl ug be fore s et t in g .
–
Loosen lock nut 4.
–
Place the gau ge un der the upper clot h c l am ps 2 .
–
Set the clearance by turning the stop screw 5.
–
Tighten lock nut 4 a ga in .
ATTENTION !
The faultless funct io ni ng of th e c l am p c los i ng lever 1 is de pe nd en t o n
the precise se tt ings of chapter s 11 to 15.
If one of these settings is changed, then all settings for chapters 11 to
15 (in this orde r ) must be made.
15
12. Cloth Clamp Pressure
1
2
3
4
5
6
7
8
9
10
Through the spring-mounted clamp frame 2 found under the material
suppor t pl at e the pressure of th e u pper cloth clamps i s au tomatically
adjusted to the material thickness.
The pressure of its compensation springs 4 is set at the factory.
Normally it should not be altered.
The clearance b et w ee n t he up pe r fram e p ie c e 3 an d t he lower f ra me
piece 4 should be 14 .2 mm up to +0.5 mm.
The setting is only possible with clamp frame removed.
The cloth clamp pressure must be set so that even the thinnest
material to be sewn is still securely clamped.
Caution Risk of Injury !
Pull the main s pl ug be fore s et t in g .
–
Remove the upper clo th c lamp s 7 a fter loosening t he mo un ti ng
screws 8.
Caution ! Do not lose the spring washers lying inbetween.
–
Loosen the four attachment screws 1.
–
Hold the clamp o perating lever in the rear pos i ti on .
–
Place a 4 mm thick item between the clamp bracket 7 and the
lower cloth clamps.
–
Pull the cClamp operating lever forward to the stop.
–
Tighten the four att ac h me nt s c rews 1 un iformly.
The clamp pres s u re for a n ormal setting is m ad e.
–
Screw the upper cloth clamps 7 on again.
Thereby place th e s p ring washers inbet w ee n.
ATTENTION !
The flawless functioning of the clamp closing lever is dependent on the
precise settings of chapters 11 to 15.
If one of these settings is changed, then all settings for chapters 11 to
15 (in this orde r ) must be made.
16
13. Pressure P oint of the Clamp Operating Le ver
In order to prevent a jumping up of the upper cloth clamps during
sewing the clamp o pe rat ing lever 1 must b e s e t a li tt le beyond i ts
strongest pressure point.
Exceeding the pressure point too much can result in:
–
Unwanted weakening of the cloth clamp pressure.
–
The cloth clam ps a r e n o l on ge r opened automatic al ly by t he c la mp
closing lever.
Setting and checking is to be conducted with the clamping plates in
place.
1
2
3
Caution Risk of Injury !
Pull the main s pl ug be fore s et t in g .
–
Loosen lock nut 3.
–
By turning the setting screw 1 suitably set the pressure point.
–
Tighten lock nut 3 a ga in .
–
Check the cloth clamp pressure (see chapter 12).
ATTENTION !
The settings of the pressure point and the cloth clamp pressurees are
interdependent.
If one of these settings is changed, then all settings for chapters 11 to
15 (in this orde r ) must be made.
17
14. Pressure of the Clamp Closing Le ver
1
3
4
2
5
6
When starting the sewing procedure the upper cloth clamps are
automatically closed by the movement of the clamp closing lever 3.
The clamp operating lever 2 must thereby be moved with c ertainty i n
front of the st op screw 4.
For this in the lowest po s it io n o f t he c lo ser 1 th er e must be a clearance
of 0.1 mm between it and the angle lever 5.
Caution Risk of Injury !
Pull the main s pl ug be fore s et t in g .
–
Tur n the hand crank until the closer 1 reaches its lowest position.
–
Loosen screws 6.
–
Set a clearance of 0.1 mm betwee n c l os e r 1 a nd an gl e l ever 5.
–
Tighten screws 6 again.
18
ATTENTION !
The flawless functioning of the clamp closing lever is dependent on the
precise settings of chapters 11 to 15.
If one of these settings is changed, then all settings for chapters 11 to
15 (in this orde r ) must be made.
15. P osition of the Clamp Closing Le ver
On the clamp closing lever 1 are to be found the closer 5 for automatic
closing and the tappet 6 for automatic opening of the clamping plates.
Depending on t he execution o f t he S ewing ma c hine for
a) cutting after sewing
b) vor and cutting after sewing
different settings of the clamp closing lever become necessary.
1
2
3
4
5
6
Caution Risk of Injury !
Pull the main s pl ug be fore s et t in g .
a) Cutting after sewing
–
With clamping plates closed turn the sewing machine out of the
end position wi th th e h an d c r an k un ti l t he hook block has turned
180°.
In this position the underthread tension 4 points to the rear (shown
in the picture to th e f r on t) .
–
Tur n farther until the cutter bar lowers and the cutting block lies
above the knife.
–
Loosen screw 3.
–
Set the tapp et 6 t ig ht on th e angle lever 2 by pulling up on th e
clamp closing lever 1.
–
Tighten screw 3 a ga in .
ATTENTION !
The flawless functioning of the clamp closing lever is dependent on the
precise settings of chapters 11 to 15.
If one of these settings is changed, then all settings for chapters 11 to
15 (in this orde r ) must be made.
19
1
2
3
4
5
6
7
b) Cutting before and after sewing
By sewing machine s la id ou t for c ut ti ng be fore an d a ft er s ewin g t w o
cams on the mai n c o nt r ol di s c control the movement of t he c la mp
closing lever.
The first cam in the direction of turn conducts the closing movement
for cutting before sewing and the second cam for cutting after sewing.
Two stops, between which the clamp closing lever can be adjusted,
limit the pos it io ns.
Caution Risk of Injury !
Pull the main s pl ug be fore s et t in g .
–
With clamping pl at es cl os e d t urn the sewing m ach ine out of the
end position with the hand crank until the hook block has turned
360°.
In this posit io n t he un de rthread te ns ion 5 points to the f r on t.
–
Move stop 6 in directi on N ( se e s t icker) un ti l t ou c hi ng .
–
Tu rn the sewing machi ne ou t o f t he en d p osi ti on wi th th e h and
crank until t he ho ok block ha s tu rned 360°.
In this position the underthread tension 5 points to the front again.
–
Tu rn a bit far t he r until the closin g m ovement of th e c lam p c l os i ng
lever downward starts (for cutting before sewing).
–
Tur n farther until the clamp closing lever moves upward again.
With the upward s movemen t t he ti p o f t he ta pp et s 4 mu s t m ove
past as close as possible to the tip of the angle lever 3. The two
tips may not, however, thereby touch.
–
Loosen screw 2.
–
Set clamp closing lever 1 appropriately.
–
Tighten screw 2 again.
–
Bring sto p 7 to tou c hi ng in di r ec t io n V (see sticker).
ATTENTION !
The flawless functioning of the clamp closing lever is dependent on the
precise settings of chapters 11 to 15.
If one of these settings is changed, then all settings for chapters 11 to
15 (in this orde r ) must be made.
20
16. Machine End Positions
1
2
3
4
5
6
7
8
The turning off in each of the end position occurs via the turn-off bolt
11 which is re leased by the reversing lever 8 of t he hi gh - speed wheel.
The timing for release of the high-speed wheel is determined by the
settings cutting before or after sewing.
95
10
11
Caution Risk of Injury !
Pull the main s pl ug be fore s et t in g .
a) Cutting before sewing
The turn-off bolt 11 should release the high-speed wheel via the
reversing lever 8 when the machine is shortly be fore a new cu tt in g
procedure. The clamp closing lever 7 must be set to " cutting before
sewing ".
–
Turn the hand cr an k un ti l t he c ut te r bar star t s to move downward.
In this settin g the clamp closin g l ever 7 must have moved so far
downward that, with open clamping plates, there is a clearance of
about 4 mm between the closer 2 and the angle lever 1.
This clearan c e is ab s ol utely essentia l for c lo s in g s o th at the edge
of the angle levers 1 can g li de on th e s u r face of the tappet 3 and
not be blocked in front o f i t.
–
Loosen screw 5 an d s e t t he tu rn-off timing by ad ju s ting the turn- of f
6
4
bolt 11:
Machine switches too early - Turn-off bolt farther forward
Machine switches too late - Turn-off bolt farther to the back
–
Tighten screw 5 a ga in .
–
Give the machine a run through and check the setting.
–
To arrest the sett in g p ul l st op 6 u p to the turn- o ff bo lt 11 and screw
tight.
21
1
2
3
4
5
6
7
8
b) Cutting after sewing
The turn-off bolt 11 should release the high-speed wheel via the
reversing lever 8 when the cutting procedure is ended, this means,
when the cutter bar is in its highest position. The clamp closing lever 7
must be set to " cut ti ng af te r s ewing ".
Caution Risk of Injury !
Pull the main s pl ug be fore s et t in g .
95
10
11
–
Tu rn the hand c ra nk u ntil the cutter bar i s in it s high es t po s it io n.
In this setti ng , with open clampi ng pl at es, th er e mus t be a
clearance of ab ou t 4 mm be twe en th e c l os e r 2 a nd the angle lever
1.
–
Loosen screw 5 and set the turn-off timing by adjusting the turn-off
bolt 11:
Machine switches too early - Turn-off bolt farther forward
6
4
Machine switches too late - Turn-off bolt farther to the back
–
Tighten screw 5 again.
–
Give the machine a r un through and check th e se tting.
–
To arrest the setting pull stop 4 up to the turn-off bolt 11 and screw
tight.
22
17. Changeover Protection
1
2
3
4
5
6
7
8
9
10
11
The changeover prot ec t io n p revents the switchi ng of the machine fr om
sewing to quick tran spo rt before the n ee dl e i s in the high position .
Damage to the nee dl e a nd ma te r ia l a re t hu s avoided.
Caution Risk of Injury !
Pull the main s pl ug be fore s et t in g .
–
Loosen lock nut 4
–
Move the securing an gl e 1 1 o f f of th e i nt erlock 5.
–
Loosen screws 1.
–
Set the interlock 5 so far to the back that th e l ever 6 with its cut ou t
lay onto the interlock 5.
–
Pull the turn-off lever 7 forward.
The roller 9 lays onto th e ha nd wh eel. The turning off of the sewing
procedure is i ni ti at ed.
In this sett in g t he lever 6 must stop in fro nt of interlock 5. Between
the catches o n t he hi gh - speed wheel there i s a c lea ra nc e of 1m m
(see chapter 6. ).
–
Push interlock 5 against lever 6.
–
Tighten screws 1.
–
Tur n the handwheel until it catches.
The brake spr in g 8 li es i n t he gr oove of t he brake cam 2.
In this settin g l ever 6 must have lift ed fro m i nt erlock 5.
The catches on the high-speed wheel must have fallen in place.
A higher lift of the lever 6 is achieved by adjusting th e bracket 3.
For this loosen screws 10 and then tighten again.
–
Set the securing angle 11 tight and tighten the lock nut 4.
–
Run the machine through manually and check the setting.
23
18. Squaring of the Hook Bloc k to the Material Support Plate
1
The hook block must, d uring sewing of bo th butto nh ol e rows, thus also
after it turns in the buttonhole eye by 180°, lit
1 of the material support plate.
The measurem en t i s ma de wi th an angle. It should not be made in the
end position, but r at he r in the middle of the right and left butt on ho le
seam.
at a right angle
to edge
Caution Risk of Injury !
Pull the main s pl ug be fore s et t in g .
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23 4 5
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Remove the clamping plates.
Close the clamp operating lever.
Remove the spreader s t op s, s p r ea de r and hook.
Remove the cutting knife, Cutting block and needle plate.
Tur n on the main switch.
Tur n on the machine and turn off again with the hand switching
lever when about half of the right buttonhole seam has been sewn.
Place the angl e o n t he hook block and check the a ng le s et ti ng to
edge 1 of the material support plate.
Tur n on the machine again and, after the turning of the hook block,
stop about in the middle of th e left buttonhole sea m.
The turn in g m ovement of th e hook block must be exactly 18 0° .
Loosen nut 4 an d, by set ti ng th e bolt 5 higher or lower, set the
exact half rotation.
Check the righ t a ng le in bo th po s it io ns o f t he ho ok block th r ou gh a
trial run and correct if necessary. korrigieren.
Loosen the screw on the toothed quadrant 5.
Set the toothed quadrant 5 so that the hook block lies precisely in
a right angle to edge 1.
24
ATTENTION !
The toothed quadrant 4 must, in both positions of the hook block, grip
with an equal nu mb er o f t ee th in to th e s p ur w he el .
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With an incorrect insertion swing out the toothed quadrant and
reset.
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