The service manual on hand describes the adjustment of the automatic
buttonholer 559 in an appropriate sequence.
ATTENTION !
Various setting positions are interdependent.
Therefore it is absolutely necessary to make the individual
adjustments following the described order.
The operations described in this service manual must only be executed
by qualified s taff or correspondingly instructed persons respectively!
Caution: Danger of breakage !
Before recommissioning of the automatic buttonholer after
disassembly operations first carry out the necessary adjustments
according to these service instructions.
Before all setting operations of parts involved in the stitch
formation:
–
Insert a new needle without any damage.
Caution: Danger of injury !
In case of repair, alteration and maintenance work:
–
Adjusting operations and function tests when the machine is
running
–
Adjusting operation in the needle zone
–
1.1Necessary program setting
For adjusting the automatic buttonholer the following buttonhole shape
has to be set at the control panel:
–
–
–
–
Switchthemainswitchoff.
Exception:
Adjustments carried out with the help of test or adjusting programs.
Carry out adjusting operations and function tests of the running
machine only under observation of all safety measures and with
utmost caution.
In order to avoid injuries remove the corresponding parts before
carrying out adjusting operations.
Exception:
The parts are absolutely necessary for the adjusting operations.
Buttonhole without bartack
Connecting stitch = 0
No cutting space
Set the connecting stitch to “wide” (see chapter 9 “Setting the seam
width”)
Note!
The set seam w idth has to be checked not only mechanically but
also at the control panel!
3
2.Adjusting the locking positions
2.1General notes
3
With the help of the locking positions an easy adjustment of the needle
motion to the hook and spreader motions is possible.
When the arm shaft is in staking-out position, the rotary thread take-up
disc and the eccentrics for the spreaders, the hooks and the
connecting stitch have to be in staking-out position, too.
The positions have been set by the manufacturer in such a way that
standard material can be sewn with the 559.
If you want to use other needle sizes, thread sizes or materials, you
may have to set positions slightly differing from the staking-out
position.
The locking pegs are included in the accessories of the machine and
have a diameter of 5 mm.
4
2.2Hook and spreader eccentric
1
Caution: Danger of injury!
Switchthemainswitchoff.
Adjust the eccentrics only with the sewing machine switched off.
Standard checking
When the arm shaft is staked out with arresting pin 1, it should
be possible to stake out the hook eccentric 3 and the spreader
eccentric 4, too.
–
Stake out the arm shaft with arresting pin 1.
Important !
In this position the needle bar must be in the top dead centre in
front of the left entry point.
–
Check with the arresting pin 2 whether the hook eccentric 5 and the
spreader eccentric 6 can be staked out.
643 25
Correction
–
Stake out the arm shaft with the arresting pin 1.
–
Loosen the screws at the hook eccentric 3.
–
Turn and stake out the eccentric.
–
Tighten the screws.
–
Loosen the screws at the spreader eccentric 4.
–
Turn and stake out the eccentric.
–
Tighten the screws.
5
2.3Rotary Thread Take-up Disc
21
6543
Caution: Danger of injury!
Switchthemainswitchoff.
Adjust the r otary thread take-up disc only with the sewing machine
switched off.
Standard checking
When the arm shaft has been arrested through the aressting pin 2,
so that the hook holder is in the left end position (left entry point),
the rotary thread take-up disc 6 should be in the right position
for a needle 4 that is put on the bore hole of the rotary thread take-up
disc to butt against the right surface 3.
Correction
–
Remove the tension plate 1.
–
Loosen the screws on the belt pulley 5.
–
Push the needle 4 through the bore hole in the rotary thread
take-u p dis c 6.
–
Turn the rotary thread take-up disc until the needle 4 butts against
the surface 3.
–
Fix the screws on the belt pulley 5 again.
6
2.4Throw eccentric
4321
Caution: Danger of injury !
Switch the main switch off. Adjust the rotary thread take-up disc only
with the machine switched off.
Standard checking
When the hook support 5 is in ist right end position (right entry point),
the arresting pin 4 inserted in the eccentric 2 shoould abut in the
notching 1 at the arm.
–
Turn the arm shaft in such a way that the hook support is on the
right side (right entry point).
–
Put the arresting pin 4 in the drill-hole 3 of the eccentric 2.
–
Check whether the arresting pin 4 abuts in the notching 1 of the
arm.
Correction
–
Loosen the screws at the eccentric 2.
–
Position the eccentric with the arresting pin righ ton top against the
arm.
–
Tighten the screws at the eccentric 2.
5
7
3.Needle bar positioning
321
Caution: Danger of injury!
Exercise utmost caution when making adjustments with the machine
running.
Standard checking
When the machine positions automatically after being switched on, the
needle bar must be in the top dead centre. The hook support is in its
right end position (right entry point) then.
–
Switch the machine on.
The machine positions automatically.
–
Check whether the needle bar is in the top dead centre and
whether the hook support is in its right end position (right entry
point).
Correction
–
Switch the machine on. The machine positions automatically.
–
Move the needle bar in the correct position by handwheel (right
entry point).
–
Switch to the technician level.
For this purpose press the keys “P” and “ç “ simultaneously.
–
Enter code “2548”.
–
Press key “OK”.
The control switches to the technician level.
–
Select menu “603”.
–
Press key “OK”.
–
Loosen screw 1 at the switching segment 2.
–
Turn the segment in such a way that the light barrier 3 at the flank
4 engages.
The switching signals are indicated on the control panel (inlet r0)
–
Tighten the screw 1 at the switching segment 2.
Note:
The switching segment must be in the middle of the light barrier.
–
Switch the machine on and check the positioning.
42
8
4.Aligning the hook support
21
Caution: Danger of injury!
Switchthemainswitchoff.
Align the hook support only with the machine switched off.
Note
Please observe the necessary program setting as described
in chapter 1.1.
Standard checking
When the machine has reached its initial position after switching
on the main switch, it must be possible to stake out the hook
support 2 with the arresting pin 1.
–
Switch the machine on.
The machine and the fabric support plate run to their initial
position.
–
Switch the machine off.
–
Check whether the hook support 2 can be staked out with arresting
pin 1.
3
4
Correction
–
Remove the clamping plates 4.
–
Switch the machine on.
The machine runs to its initial position.
–
Switch the machine off.
–
Loosen the clamping screw at the toothed belt wheel with the
hexagonal spanner 3.
–
Turn the hook support in such a way that it can be staked out
with pin 1.
–
Tighten the clamping screw with the hexagonal spanner 3.
9
5
6
5
8
7
9
10
10
5.Aligning the needle bar parallel to the hook support
Caution: Danger of injury!
Switchthemainswitchoff.
Adjust the needle bar only with the main switch switched off.
Standard checking
The needle bar 1 and the hook support 3 must be in parallel position.
–
Remove the cutting block.
–
Unscrew the finger protection and the head cover.
Note !
Do not separate the cable from the head cover.
–
Switch the machine on.
The machine runs to its initial position.
–
Switch the machine off.
–
Stake out the hook support with arresting pin 2.
–
Position an angle 5 at the right side 6 of the hook support.
–
Check whether the screw 7 at the needle bar guide 8 abuts on the
angle.
Correction
–
Loosen the screws 9 at the toothed belt wheel 10.
–
Turn the needle bar guide 4 correspondingly.
–
Tighten the screws 9 at the toothed belt wheel 10.
–
Switch the machine on.
–
Check the needle bar position.
4
1
2
3
11
X2
11
X1
12
432
6.Transversal motion of the fabric support plate
Caution: Danger of injury!
Exercise utmost caution when making adjustments with the machine
running.
Note
Please observe the necessary program setting as described in
chapter 1.1.
Standard checking
The hook support 3 must be in the centre of the fabric support plate 4.
When the automatic buttonholer is in reference position, the
dimensions X1 and X2 must be equal when the fabric support plate is
adjusted correctly.
The distance between reference switch 5 and switch sheet 6 must not
exceed 0.5 mm.
–
Switch the machine on.
–
Press the keys “P” and “ß” on the control panel simultaneously.
–
Enter code “2548”.
–
Press key ”OK”.
The control switches to the technician level.
–
Select the menu “608” with the key “+”.
–
Switch the menu on with key ”OK”.
The machine runs to its initial position.
–
Switch the machine off.
–
Check the dimension X1 with the slide gauge 2 (right edge of the
throat plate groove to the left edge of the fabric support plate).
–
Check the dimension X2 (left edge of the throat plate groove to the
right edge of the fabric support plate).
65
13
76 85
Correction
–
Switch the machine on and press the keys “P” and “ß”onthe
control panel simultaneously.
–
Enter code “2548”.
–
Press key ”OK”.
The control switches to the technician level.
–
Select the menu “603” with the key “+”.
In this mode the step motors are dead.
–
Switch the menu on with key ”OK”.
Caution: Danger of injury!
Exercise utmost caution when making adjustments with the machine
running.
–
Shift the fabric support plate manually in such a way that the
dimensions X1 and X2 are equal.
–
Loosen screw 7.
–
Turn the switch sheet 6 to the switch actuation point.
When turning the switch sheet 6 the switching signals are indicated
on the control panel (inlet r1).
–
Tighten screw 7.
–
Switch the machine off and on again.
–
Let the machine move to its initial position and check the position
of the fabric support plate.
14
Correction of the distance betw een reference sw itch and switch
sheet
–
Loosen the nuts 8.
–
Screw the reference switch 5 out or in so that the distance between
reference switch 5 and switch sheet 6 does not exceed 0.5 mm.
–
Tighten the nuts 8.
7.Longitudinal motion of the fabric support plate
3211
Caution: Danger of injury!
Exercise utmost caution when making adjustments with the machine
running.
Note
Please observe the necessary program setting as described in
chapter 1.1.
Standard checking
When the machine is in reference position, the distance between the
edge 3 of the fabric support plate 2 and the front edge 1 of the throat
plate support should amount to approx. 113 mm.
The distance between reference switch and switch sheet must not
exceed 0.5 mm.
–
Switch the machine on.
–
Press the keys “P” and “ß” on the control panel simultaneously.
–
Enter code “2548”.
–
Press key ”OK”.
The control switches to the technician level.
–
Select the menu “608” with the key “+”.
–
1
Switch on the menu with key ”OK”.
The machine runs to its initial position.
–
Switch the machine off.
–
Check the distance between the edge 3 of the fabric support plate
and the front edge 1 of the throat plate support.
15
546
Correction
–
Switch the machine on and press the keys “P” and “ß”onthe
control panel simultaneously.
–
Enter code “2548”.
–
Press key ”OK”.
The control switches to the technician level.
–
Select the menu “603”with the key “+”.
In this mode the step motors are dead.
–
Switch the menu on with key ”OK”.
Caution: Danger of injury!
Exercise utmost caution when making adjustments with the machine
running.
–
Shift the fabric support plate manually to the desired measurement.
–
Loosen the screws 5.
–
Set the switch sheet 4 to the switch actuation point.
When shifting the switch sheet 4 the switching signals are
indicated on the control panel (inlet r2).
–
Tighten the screws 5.
–
Switch the machine off and on again.
–
Let the machine move to its initial position and check the
measurement.
16
Correction of the distance betw een reference sw itch and switch
sheet
–
Loosen the nut.
–
Screw the reference switch 6 out or in so that the distance between
reference switch 6 and switch sheet 4 does not exceed 0.5 mm.
–
Tighten the nut.
8.Clamping plates
8.1Inserted clamping plates
4321
ô=0
Caution: Danger of injury!
Switchthemainswitchoff.
Adjust the clamping plates only with the machine switched off.
Standard checking
The inserted clamping plates 1 and 2 should be in the holding
groove 4 of the fabric support plate in parallel position and without
clearance.
Inserting and removing must, however, be fingertip easy.
–
Insert both clamping plates and check whether there is as little
clearance as possible.
–
Remove the clamping plates and check whether this is easily
possible.
Correction
–
Adjust the screws 3 correspondingly.
17
8.2Aligning the clamping plates
X2
X1
321
Caution: Danger of injury!
Switchthemainswitchoff.
Adjust the clamping plates only with the machine switched off.
Standard checking
Both clamping plates 3 must be adjusted in such a way that the
distance between clamping plate and fabric support plate 1 is equal
everywhere (distance X1 = distance X2).
–
Put on the right clamping plate.
–
Check distance X1 and X2.
Correction
–
Insert the right clamping plate.
–
Loosen the screw 4 with a hexagonal spanner.
–
Turn the eccentric 2 correspondingly.
–
Tighten screw 4.
–
Insert and adjust the left clamping plate.
4
18
8.3Adjusting the spreading
2X 14
Caution: Danger of injury!
Exercise utmost caution when making adjustments with the
machine running.
Standard checking
The distance X between the clamping plates 2 and the fabric support
plate 1 should amount to 1.3 mm (non-spreaded) and to 0.3 mm
(spreaded).
–
Insert the clamping plates 2 and switch the machine on.
–
Press the keys “P” and “F” on the control panel simultaneously.
–
Enter code “2548”.
–
Press key ”OK”.
The control switches to the technician level.
–
Select the menu “601” with the key “+”.
–
Switch the menu on with key ”OK”.
–
Select the function “Y03” (closing the fabric clamp).
–
Press key ”OK”.
The fabric clamps close.
–
Check whether the distance X amounts to 1.3 mm.
–
Select the function “Y04”.
–
Press key ”OK”.
The fabric clamps spread.
–
Check whether the distance X amounts to 0.3 mm.
19
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