MA 2545
BASIC
PLUS
MA 2546
BASIC
PLUS
INSTRUCTION MANUAL
4153-1-2545-2-2
Taicang 2012-02
© Tribonia Intl.
215400 Taicang, Jiangsu
This Instruction Manual is valid for all models and subclasses listed in the
chapter " Specifications”.
Index
Co
n
t
en
ts
..................................................................................
P
a
g
e
1
Safet
y
...................................................................................................................................
5
1
.01 Directive
s
...............................................................................................................................
5
1
.02 General notes on safety .........................................................................................................
5
1
.03 Safety symbols ......................................................................................................................
6
1
.04 Important points for the use
r
.................................................................................................
6
1
.05 Operatin
g
and specialist personne
l
........................................................................................
7
1
.05.01 Operatin
g
personne
l
..............................................................................................................
7
1
.05.02 Specialist personne
l
...............................................................................................................
7
1
.06 Dan
g
er warnin
gs
....................................................................................................................
8
2
Proper use............................................................................................................................
9
3
S
pecifi cation
s
...................................................................................................................... 10
3
.
01 MA 2545 / 2546 (BASIC, CLASSIC and PLUS) ...................................................................... 10
3
.
02
M
ax
i
mum spee
d
..................................................................................................................
11
3
.
03
M
ac
hi
ne equ
i
pment an
d
opt
i
on
s
.......................................................................................... 1
2
4
Disposal o
f
Machine .........................................................................................................
.
1
3
5
Transportation, packing and storage ................................................................................ 1
4
5
.
01 Transportat
i
on to customer
‘
s prem
i
se
s
................................................................................ 1
4
5
.
02 Transportat
i
on
i
ns
id
e t
h
e customer
‘
s prem
i
ses ................................................................... 1
4
5
.
03 Disposal of packing materials ............................................................................................... 1
4
5
.
04 Stora
g
e .................................................................................................................................. 1
4
6
Explanation of symbol
s
.....................................................................................................1
5
7
C
ontrols ............................................................................................................................... 1
6
7
.
01
O
n/off switch ........................................................................................................................ 1
6
7
.
02
S
ewing lamp switch (only on the MA 2545 / 2546
C
LA
SS
IC ans PLUS .............................) 1
6
7
.
03
P
edal ....................................................................................................................................
17
7
.
04 Keyboard on machine head (only on the MA 2545 / 2546
C
LA
SS
I
C
ans PLU
S
)
18
7
.
05
K
nee sw
i
tc
h
(
opt
i
on
)
.............................................................................................................
20
7
.
06 Knee lever (only on the MA 2545 / 2546 BA
S
I
C
)
20
7
.
07 Presser foot fixing key
2
1
7
.
08 Adjusting the stitch length (on the MA 2545 / 2546 BA
S
I
C
and
C
LA
SS
I
C
)
2
1
7
.
09 Adjusting the stitch length (on the MA 2545 / 2546 PLU
S
)
22
7
.
10 Reverse feed lever ...............................................................................................................
22
7
.
11 Ad
j
usting the top feed stroke (on the MA 2545 / 2546 BA
S
I
C
and
C
LA
SS
I
C
)
23
...................
.........................
....................
.................................................................
................................................
..........................................................................................................
Index
Co
n
t
en
ts
..................................................................................
P
a
g
e
7
.12 Adjusting the top feed stroke (on the MA 2545 / 2546 PLUS ) ..... ......................................
23
7
.13
S
witchable needle thread tension (only on the MA 2545 / 2546 BA
S
I
C
) .............................
.............................................................................
24
7
.14 Bobbin thread control by stitch-counting
25
7
.15 Control panel .........................................................................................................................
25
8
P
reparation
........................................................................................................................
2
6
8
.01 Inserting the needl
e
.............................................................................................................
26
8
.02
Wi
n
di
ng t
h
e
b
o
bbi
n t
h
rea
d
, regu
l
at
i
ng t
h
e w
i
n
d
er tens
i
o
n
..................................................
2
7
8
.03
B
o
bbi
n-c
h
ang
i
ng
/
t
h
rea
di
ng, an
d
regu
l
at
i
ng t
h
e
b
o
bbi
n t
h
rea
d
tens
i
o
n
................................
28
8
.04
S
etting the bobbin thread control function by reverse stitch counting
.....................................
28
8
.05 T
h
rea
di
ng nee
dl
e t
h
rea
d
an
d
regu
l
at
i
ng
i
ts tens
i
on on t
h
e 2545
............................................
29
8
.06 T
h
rea
di
ng nee
dl
e t
h
rea
d
an
d
regu
l
at
i
ng
i
ts tens
i
on on t
h
e 2546
............................................
30
9
Care and maintenance ......................................................................................................
.
31
9
.01 Servicing and maintenance intervals .................................................................................... 31
9
.02 Cleaning the machin
e
.......................................................................................................... 31
9
.03
L
u
b
r
i
cat
i
n
g
........................................................................................................................... 32
9
.04 Checkin
g
/re
g
ulatin
g
the air pressur
e
................................................................................... 33
9
.05 Emptying/cleaning the water bowl o
f
the air filter/regulato ................................................ 33
1
0
W
earing parts ....................................................................................................................
.
34
Safety
5
1
S
afet
y
1
.
01 Directives
T
his machine is constructed in accordance with the European regulations contained in the
conformity and manufacturer’s declarations
.
I
n addition to this Instruction Manual, also observe all generally accepted, statutory and
o
ther re
g
ulations and le
g
al requirements and all valid environmental protection re
g
ulations
!
T
he regionally valid regulations of the social insurance society for occupational accidents or
o
ther supervisory organizations are to be strictly adhered to
!
1
.0
2
G
eneral notes on sa
f
ety
This machine may only be operated by adequately trained operators and only a fter having
completely read and understood the Instruction Manual
!
All Notes on
S
afety and Instruction Manuals of the motor manufacturer are to be read be-
f
ore operating the machine
!
The dan
g
er and safety instructions on the machine itsel f are to be followed
!
This machine may only be used for the purpose for which it is intended and may not be
o
perated without its safety devices. All safety re
g
ulations relevant to its operation are to
b
e a
dh
ere
d
to
.
When exchan
g
in
g
sewin
g
tools (e.
g
. needle, roller presser, needle plate and bobbin),
when threadin
g
the machine, when leavin
g
the machine unattended and durin
g
mainte
-
nance work, the machine is to be se parated from the power supply by switchin
g
off the
On/Off switch or by removin
g
the plu
g
from the mains
!
E
very
d
ay ma
i
ntenance wor
k
i
s on
l
y to
b
e carr
i
e
d
out
b
y appropr
i
ate
l
y tra
i
ne
d
personne
l!
Repairs and special maintenance work may only be carried out by qualified service staff
o
r appropr
i
ate
l
y tra
i
ne
d
personne
l!
Work on electrical equipment may only be carried out by appropriately trained personnel
!
Work is not permitted on parts and equipment which are connected to the power supply!
The only exceptions to this rule are found in the re
g
ulations EN
5
0110
.
Modifications and alterations to the machine may only be carried out under observance
o
f all the relevant safety regulations!
O
nly spare parts which have been approved by us are to be used for repairs! We express
-
l
y po
i
nt out t
h
at any rep
l
acement parts or accessor
i
es w
hi
c
h
are not supp
li
e
d
b
y us
h
ave
not been tested and approved by us. The installation and/or use o f any such products can
lead to negative changes in the structural characteristics o f the machine. We are not liable
f
or any damage which may be caused by non-original parts
.
Safety
6
1
.
03
S
afet
y
s
y
mbol
s
D
anger
!
Points to be observed.
.
Danger of in
j
ury for operating and specialist personnel
!
Caution
Do not operate without finger guard and safety devices
.
Before threadin
g
, chan
g
in
g
bobbin and needle, cleanin
g
e
t
c. switch off main switch.
1
.04 Important points
f
or the user
This Instruction Manual is an inte
g
ral part of the machine and must be available to the
operatin
g
personnel at all times
.
The Instruction Manual must be read be
f
ore operatin
g
the machine
f
or the first time
.
The operating and specialist personnel is to be instructed as to the sa fety equipment of
t
he machine and regarding sa fe work methods
.
It is the duty of the user to only operate the machine in perfect runnin
g
order.
It is the obli
g
ation of the user to ensure that none of the safet y mechanisms are removed
o
r
d
e
act
iv
at
e
d
.
It is the obli
g
ation of the user to ensure that onl y authorized persons operate and work
o
n
t
he m
ac
hine.
Further information can be obtained from y
our Mauser Spezial agent.
Safety
7
1
.
0
5 Operating and specialist personne
l
1
.05.01 Operating personnel
Operating personnel are persons responsible for the equipping, operating and cleaning of
the machine as well as for taking care of problems arising in the sewing area
.
T
he operating personnel is required to observe the following points and must
:
always observe the Notes on Safety in the Instruction Manual!
never use any working methods which could adversely affect the safety of the machine!
not wear loose-fitting clothing or
j
ewelery such as chains or rings!
also ensure that only authorized persons have access to the potentially dangerous area
around the machine
!
always immediately report to the person responsible any changes in the machine which
may limit its safety!
1
.05.02 Specialist personnel
Specialist personnel are persons with a specialist education in the fields of electrics, electro
-
nics and mechanics. They are responsible for the lubrication, maintenance, repair and ad
j
ust
-
m
ent of the machine
.
T
he specialist personnel is obliged to observe the following points and must:
always observe the Notes on Safety in the Instruction Manual!
switch off the
O
n/
O
ff switch before carrying out adjustments or repairs, and ensure that
i
t cannot
b
e sw
i
tc
h
e
d
on aga
i
n un
i
ntent
i
ona
ll
y
!
wait until the luminous diode on the control box is no longer blinking or on be fore begin-
ning ad
j
ustment or repair work
.
never wor
k
on parts w
hi
c
h
are st
ill
connecte
d
to t
h
e power supp
l
y
!
E
xcept
i
ons are exp
l
a
i
-
ne
d
i
n t
h
e re
g
u
l
at
i
ons
EN
5
0110
.
replace the protective coverings and close the electrical control box a
f
er all repairs or
ma
i
ntenance wor
k!
Safety
8
1
.06 Danger warnings
A working area of
1
m
must be kept free both in front of and behind the machi
-
ne, so that easy access is possible at all times
.
Never put your hands or fingers in the sewing area during sewing
!
D
anger of in
j
ury by the needle
!
While setting or adjusting the machine do not leave any objects on the table nor
in the needle plate area! Objects may be trapped or flung out of the machine
!
D
o not run the machine without finger guard
1
!
D
anger of injury by up and down movement of needle!
D
o not run t
h
e mac
hi
ne w
i
t
h
out ta
k
e-up
l
ever guar
d
2
!
D
anger of in
j
ury by moving take-up lever!
D
o not run t
h
e mac
hi
ne w
i
t
h
out
b
e
l
t guar
d
s
3
an
d
4
!
D
anger o
f
in
j
ury by rotating v-belt
!
D
o not operate t
h
e mac
hi
ne w
i
t
h
out t
il
t
l
oc
k
5
!
D
an
g
er of crushin
g
between sewin
g
head and table
!
D
o not operate t
h
e mac
hi
ne w
i
t
h
out support
6
!
D
an
g
er
d
ue to top-
h
eavy
sew
i
n
g
h
ea
d!
M
ac
hi
ne can t
i
p over
b
ac
k
war
d
s w
h
en t
il
te
d!
F
ig. 1 - 0
1
2
1
3
4
5
6
Proper use
9
2
P
roper use
Th
e MA 2545 BASIC, CLASSI
C
an
d
PLU
S
are special high-speed, single needle lock-
stitch sewing machines with unison feed and a large, respectively extra large hook
.
Th
e MA 2546 BA
S
IC, CLA
SS
IC an
d
PLU
S
are spec
i
a
l
hi
g
h
-spee
d
, two nee
dl
e
l
oc
k
st
i
tc
h
sewing machines with unison feed and a large, respectively extra large hook.
The machines are used for sewing lockstitch seams in the textile industry.
Any and all uses o
f this machine which have not been approved o f by the
manufacturer are considered to be inappropriate! The manu facturer cannot be
held liable for any damage caused by the inappropriate use o f the machine!
The appropriate use of the machine includes the observance o f all operational,
ad
j
ustment, maintenance and repair measures required by the manu
f
acturer
!
Specifications
1
0
3
S
pecifi cation
s
3
.
0
1 MA 2545 / 2546 (BA
S
I
C
,
C
LA
SS
I
C
and PLU
S
)
S
titch type: ........................................................................................................
.
3
01
(l
oc
k
st
i
tc
h)
N
ee
dl
e system: .............................................................................................................
.
1
3
4-
35
V
ersion CN; CN9; CN12
:
............................................
.
f
or processin
g
medium-heavy materials
V
ers
i
on
DN
;
DN
12
:
...................................................................
.
f
or processing heavy materials
N
eedle size in 1/100 mm:
V
ersion
C
N9:
..............................................................................................................
11
0
– 14
0
V
ers
i
on
DN
12:
...........................................................................................................
15
0
–
200
M
ax. st
i
tc
h
l
engt
h
:
V
ersion
C
N; DN:
...............................................................................................................
6
mm
V
ersion
C
N9:
....................................................................................................................
9
m
m
V
ersion
C
N12; DN12:
.....................................................................................................
12 m
m
M
ax.t
h
rea
d
s
i
ze
(
synt
h
et
i
c
):
V
ersion CN.. :
..................................................................................................................
1
5
/
3
V
ers
i
on
DN
.. :
....................................................................................................................
8
/
3
Presser foot clearance:
..................................................................................................
20
m
m
Clearance width:
..........................................................................................................
3
5
0
m
m
Clearance height:
.........................................................................................................
1
20
m
m
B
e
d
p
l
ate
di
mens
i
ons:
.......................................................................................
6
4
0
x
200
m
m
N
o
i
se
d
ata
:
N
oise emission level at workplace with a sewing speed o f 2400 spm
:
............
L
pA
< 80
dB(A)
(Noise measurement in accordance with DIN 45 635-48-A-1, I
SO
11204, I
SO
3744, I
SO
M
otor
d
ata:
....................................................................
S
ee instruction manual for th
e
mo
t
o
r
L
ea
k
age curren
t
...........................................................................................................
<
5 m
A
Ai
r consumpt
i
on per sw
i
tc
h
cyc
l
e:
...............................................................................
0
.146 N
I
N
et weight of sewing head:
.................................................................................
approx. 72
kg
G
ross weight of sewing head
:
.............................................................................
approx. 82
kg
S
ub
j
ect to alterations
Due to the use o
f
network filters there is a nominal leakage current o
f
<
5 mA.
synthetic, or other sizes of comparable thread types
K
pA
=
2
,
5
dB
Specifications
11
T
op
f
eed li
f
t
S
titch len
g
th ran
g
e
M
ax. spee
d
/
spm
o
n vers
i
on C an
d
w
i
t
h
l
arge
h
oo
k
M
ax. speed / spm on
version
C
and with
e
xtra-lar
g
e hook
M
ax. s
peed / spm
o
n version D and with
lar
g
e hook
M
ax. spee
d
/
s
p
m on
vers
i
on
D
an
d
w
i
t
h
e
xtra-
l
ar
g
e
h
oo
k
1 -
2
m
m
u
p to
9
mm
3800
3400
3
000 2700
2
,5 - 4 mm
u
p to 9 mm
3200
2800
2
80
0
2700
4
,
5
-
5
mm
u
p to 9 mm
2600
2
2
00
2
4
00
2
2
00
5
,
5
-
7
mm
u
p to 9 mm 200
0
1
80
0
1
800
1
80
0
7,5 -
9
mm
u
p to
9
mm
1800
1800
1
600
1
600
1 - 2 m
m
9
,5 - 12 mm
2200
2200
2200
2200
2
,5 - 4 mm
9
,5 - 1
2
mm
2
2
00
2
2
00
2
2
00
2
2
00
4
,
5
-
5
mm
9
,5 - 1
2
mm
2
2
00
2
2
00
2
2
00
2
2
00
5
,
5
-
7
mm
9
,5 - 12 mm
20
00
1800
2000
1800
7,5 -
9
mm
9
,5 - 12 mm
1800
1800
1800
1800
3
.
0
2 Maximum speed
T
he max. speed on the MA 254
6
with needle gauge larger than 20 mm is
2000
spm
.
Specifications
1
2
3
.0
3
M
achine equipment and options
MA
2545
/
2
54
6
BA
S
IC
C
LA
SS
IC
PLU
S
V
et
i
ca
l
h
oo
k
,
l
arg
e
Vetical hook, extra lar
g
e
Thread trimmer (-900/81), < 13 mm rest thread
-
Thread trimmer (-900/82), < 5 mm rest threa
d
-
Thread puller (-909/12), controlle
d
-
Presser foot lift, manual via knee lever
-
-
Presser foot lift (-910/04), electropneumati
c
-
Manual backtacking with mech. hand switc
h
A
utomat
i
c
b
ac
k
tac
ki
ng
(
-911
/
35
)
, e
l
ectropneumat
ic
-
1 preselectable stitch len
g
t
h
-
2
prese
l
ecta
bl
e st
i
tc
h
l
en
g
t
h
s, can
b
e sw
i
tc
h
e
d
a
l
ternate
ly
-
-
2 preselectable thread tensions, one can be switched on manually
-
-
2 preselectable thread tensions, one can be switched on electropneu
-
mat
i
ca
ll
y
b
y
h
an
d
sw
i
tc
h
-
1 presser foot stroke, manually ad
j
ustable, top feed stroke up to max. 9 mm
-
2 presser foot strokes, manually ad
j
ustable, preselectable quick stroke
ad
j
ustment with hand switch (electropneumatically controlled
)
-
-
Drop feed, adjustabl
e
O
il level control through inspection glass
Oil level on display, with warnin
g
li
g
ht on machine head
-
Presser foot pressure, manually ad
j
ustabl
e
C
l
utc
h m
oto
r
-
-
D
C
-motor functionality EcoDrive MA74 ED-L
-
C
ontrol panel - PicoTop
-
Integrated multiple switch on machine head + programmed multi switch
-
Inte
g
rated LED sewin
g
lamp on sewin
g
head, dimmabl
e
B
o
bbi
n t
h
rea
d
w
i
n
di
ng
d
ev
i
c
e
Attachment slider
Bobbin thread monitorin
g
with thread detectio
n
-
S
afety couplin
g
= stan
d
ar
d
, = opt
i
ona
l
Disposal of Machine
13
4 Disposal of Machine
Proper disposal of the machine is the responsibility of the customer
.
The materials used for the machine are steel, aluminium, brass and various plastic
mater
i
a
l
s. T
h
e e
l
ectr
i
ca
l
equ
i
pment compr
i
ses p
l
ast
i
c mater
i
a
l
s an
d
copper.
The machine is to be disposed of according to the locally valid pollution control regulations;
if necessary, a specialist ist to be commissioned.
Care must be taken that parts soiled with lubricants are disposed of separately
according to the locally valid pollution control regulations
!
Transportation, packing and storage
1
4
5
Transportation, packing and storage
5
.01 Transportation to customer‘s premise
s
T
he machines are delivered completely packed
.
5
.
0
2 Transportation inside the customer‘s premise
s
T
he manufacturer cannot be made liable for trans portation inside the customer‘s premises
n
or to other operatin
g
locations. It must be ensured that the machines are onl y transported
i
n an upr
i
g
h
t pos
i
t
i
on
.
5
.0
3
Disposal of packing materials
T
he packing materials of this machine comprise paper, cardboard and VCE fibre. Proper dis
-
p
osal of the packin
g
material is the responsibility of the customer.
5
.04
S
torage
I
f the machine is not in use, it can be stored as it is for a period of up to six months, but It
should be protected a
g
ainst dust and moisture
.
I
f the machine is stored for lon
g
er periods, the individual parts, especially the surfaces of
movin
g
parts, must be protected a
g
ainst corrosion, e.
g
. by a film of oil
.
Explanation of symbols
15
6 Explanation o
f
symbol
s
In this instruction manual, work to be carried out or important information is accentuated by
symbols. These symbols have the following meanings:
Note, in
formatio
n
Cleaning, car
e
L
u
b
r
i
cat
i
o
n
Maintenance, repairs, ad
j
ustment, service wor
k
(only to be carried out by technical sta
ff
)
Controls
1
6
7
C
ontrol
s
7
.01 On/off switch
Fig
. 7 - 01
1
Machines with Quick-EcoDrive
Th
e power supp
l
y to t
h
e mac
hi
ne
i
s sw
i
t
-
ched on or off by turnin
g
switch
1
.
7
.
0
2
S
ewing lamp switch
(
only on the MA 2545 / 2546 CLASSIC ans PLUS )
S
witch the sewin
g
lamp, which is inte-
g
rated in the machine head, on or off by
o
peratin
g
switch
1
.
F
ig. 7 - 01
b
1
Controls
17
7
.
0
3
P
eda
l
W
ith the on/off switch on
0
=
M
ac
hi
ne stop
+
1
= Sew
-
1
= Raise presserfoot
-
2
= Tr
i
m t
h
rea
d
(
on mac
hi
nes w
i
t
h
t
h
rea
d
tr
i
mmer
)
Fig
. 7 - 03
0
+1
-1 -2
Controls
1
8
7
.04
K
e
y
board on machine head (only on the MA 2545 / 2546 CLASSIC ans PLUS )
Th
e mac
hi
ne
h
as a
k
ey
b
oar
d
w
i
t
h
8 keys to activate di
ff
erent
f
unctions
.
I
n the keys 2
–
7
there are yellow LEDs. These shine when the respective function has
b
een a
ll
ocate
d
to
k
ey
1
.
G
reen LEDs are located above the keys
2
-
7
. The
s
e
s
hine when
t
he f
u
n
ct
i
o
n h
as
b
een
act
iv
at
e
d
.
A
bove key
1
there are two symbol lamps.
L
amp
A
indicates the status of the bobbin thread control
.
Lamp
B
shines when the minimum level of the oil su pply has been reached
.
W
hen the keys
1
–
8
are operated, the functions listed below are carried out
.
K
ey
1
: The functions of the keys
2
-
7
can
b
e a
ll
ocate
d
to t
hi
s
k
ey.
To program
k
ey
1
, simultaneously press one of the keys
2
-
7
an
d
k
ey
1
for approx.
3
secon
ds
. The function of the selected key is taken over and the yellow LED in this
k
ey
li
g
h
ts up
K
ey 2: Reverse sew
i
n
g
or
i
nterme
di
ate
b
ac
k
tac
k
s
d
ur
i
n
g
t
h
e seam
.
Under Parameter 6
34
other functions can be assigned to this key
:
S
et value
O
N =
F
ee
d
a
dj
ustment w
h
en mac
hi
ne
h
as stoppe
d
an
d
w
h
en
mac
hi
ne
i
s runn
i
ng
(
stan
d
ar
d)
O
FF =
F
ee
d
a
dj
ustment on
l
y w
h
en mac
hi
ne
i
s runn
i
n
g
Fi
g
. 7 - 04
2
1
3
5
7
8
B
A
O
nly on the Version PLU
S
4
6
Controls
19
K
ey
3
:
N
ee
dl
e pos
i
t
i
on c
h
an
g
e
U
n
d
er P
a
r
a
me
t
er
695
other
f
unctions can be assi
g
ned to this key:
S
et value 0 =
O
ff
1 = nee
dl
e ra
i
se
d
w
i
t
h
out tr
i
mm
i
ng
een = 2
dl
e pos
i
t
i
on c
h
ange
(
stan
d
ar
d)
3 = s
i
ng
l
e st
i
tc
h
4 = s
i
ng
l
e st
i
tc
h
i
n revers
e
5 = moving forwards to needle position step by ste p
6 = programmable tack on / off
Key 4: Calling up the pre-selected top feed lift
.
(Diode on = high lift, diode off = low lift).
U
nder Parameter 4
01
other functions can be assigned to this key
:
Set value 0 = Off
1 = when key pressed constant second stroke (standard
)
2 = second stroke only as long as key presse
d
If this key is operated, the second voltage is switched on
This function can be switched off under Parameter
7
64
K
ey
5
: Bartack suppression
f
or one bartack
U
nder Parameter
780
other
f
unctions can be assigned to this key
:
S
et value 0 =
O
ff
1
=
t
ac
k
i
nvers
i
on once
(
stan
d
ar
d)
2
=
t
ack suppression (all tacks switched o
ff
)
3
= reverse move to nee
dl
e pos
i
t
i
on step
b
y step
4
=
e
dge trimmer on / o
ff
5
=
p
rogrammable tack on / o
ff
Key 6: Calling up the pre-set stitch lengt
h
Diode on = lar
g
e stitch len
g
th, diode off = small stitch len
g
th
.
This
f
unction can be switched o
ff
under Parameter
7
8
6
.
K
ey
7
: I
f
this key is operated, the second t
h
rea
d
tens
i
o
n
i
s sw
i
tc
h
e
d
on.
I
f
this key is pressed
f
or longer than about
2
secon
d
s, t
h
e mac
hi
ne moves to t
h
e
t
h
rea
di
ng pos
i
t
i
on - t
h
e nee
dl
e
i
s ra
i
se
d
an
d
t
h
e motor start
i
n
hibi
tor
i
s act
i
vate
d
(
sew
i
ng t
h
rea
d
s are not tr
i
mme
d)
.
I
f
the key is operated again, the motor start inhibitor is deactivated agai
n
K
ey
8
: EMERGENCY KEY
.
N
ee
dl
e
i
s ra
i
se
d
w
i
t
h
out tr
i
mm
i
ng, t
h
e t
h
rea
d
c
l
amp
i
s opene
d
, t
h
e t
h
rea
d
tension is released, the presser
f
oot raised and the motor start inhibitor activated
(di
o
d
e a
b
ove t
h
e
k
ey
li
g
h
ts up re
d)
.
.
I
f
the
"
s
cro
l
l
"
k
ey on t
h
e contro
l
pane
l
i
s presse
d
, t
h
e motor start
i
n
hibi
tor
i
s
d
eact
i
vate
d
a
g
a
i
n
.
T
he method
f
or settin
g
parameters is described in the settin
g
s manual, and
m
ay only be carried out by certifi ed pro
f
essionals!
Controls
2
0
7
.05
K
n
ee
switch
(
opt
i
on
)
Depending on how the machine is equip
-
p
ed, the following functions can be called
up w
i
t
h
t
h
e
k
nee sw
i
tc
h
:
1
.
O
n machines with centre guide (sub-class
-
63
/
2
4
)
t
hi
s can
b
e engage
d
or
di
sen-
gage
d
b
y operat
i
ng t
h
e
k
nee sw
i
tc
h
.
2
.
B
y operat
i
ng
k
nee sw
i
tc
h
1
i
t
i
s poss
ibl
e
to a
l
ternate
b
etween two pre-se
l
ecte
d
feed stroke settings.
For the high stroke setting the
speed is reduced
.
The knee switch function can
be altered, see the instruction
manual for the control panel
.
7
.
06
K
n
ee
l
e
v
e
r
(
only on the MA 2545 / 2546 BA
S
I
C
)
B
y pressing the knee lever
1
in the
direction o
f
the arrow, the presser
f
oot is
ra
i
se
d
.
Fi
g
. 7 - 0
6
Fi
g
. 7 - 05
1
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