Juki UT51 Bruksanvisning
Läs nedan 📖 manual på svenska för Juki UT51 (17 sidor) i kategorin Symaskin. Denna guide var användbar för 7 personer och betygsatt med 4.5 stjärnor i genomsnitt av 4 användare
Sida 1/17
ENGLISH
INStructIoN MaNuaL
MF-7900(D)/ut51,52
i
CONTENTS
!. SPECIFICATIONS ..........................................................................................................1
@. AT THE BEGINNING ......................................................................................................1
#. INSTALLING THE ACCESSORIES ...............................................................................2
1. Installing the presser lifting solenoid ........................................................................................... 2
2. Installation and setting SC-921 ...................................................................................................... 3
(1) Installing the SC-921 on the table ( Table-mount type ) ............................................................................3
(2) Installing the SC-921 on the table ( Semi-submerged type ) ....................................................................3
(3) Connecting the cords ...................................................................................................................................4
(4) Setting procedure of the machine head .....................................................................................................5
(5) Setting the lower stop position of the needle bar .....................................................................................6
(6) Setting of the auto lifter function ................................................................................................................7
(7) Setting of the pedal stroke...........................................................................................................................7
$. THREADING THE MACHINE HEAD .............................................................................8
%. ADJUSTING THE LOOPER THREAD TRIMMER MECHANISM ..................................9
1. Adjusting the looper thread trimmer solenoid ............................................................................. 9
2. Adjusting the Lower knife ............................................................................................................ 10
3. Adjusting the position of clamp pressure adjusting spring ..................................................... 10
4. Adjusting the knife engagement and the knife pressure adjusting spring ............................. 10
5. Adjusting the pressure of clamp spring ..................................................................................... 10
6. Initial position of the looper thread trimmer mechanism ...........................................................11
7. Adjusting the stopper ....................................................................................................................11
8. Adjusting the height of the lower knife ........................................................................................11
9. Adjusting the lower knife holder guide ........................................................................................11
10. Adjusting the longitudinal position of the blade point of lower knife ...................................... 12
11. Adjusting the thread trimmer sensor .......................................................................................... 12
^. ADJUSTING THE THREAD RELEASE MECHANISM ................................................13
1. Adjusting the disk-rise ................................................................................................................. 13
2. Adjusting the thread release hook .............................................................................................. 13
&. ADJUSTING THE TOP COVERING THREAD TRIMMER MECHANISM ....................14
1. Adjusting the engagement of knives .......................................................................................... 14
2. Adjusting the pressure of clamp spring ..................................................................................... 14
3. Adjusting the position of the blade point of moving knife ........................................................ 14
*. MAINTENANCE ...........................................................................................................15
1. Cleaning the motor fan ................................................................................................................. 15
– 1 –
!. SPECIFICATIONS
Model name High-speed, cylinder-bed coverstitch machine Semi-dry head, high-speed, cylinder-bed
coverstitch machine
Model MF-7900 series MF-7900D series
Stitch type ISO standard 406, 407, 602, and 605
Example of application
Hemming and covering for knits and general knitted fabrics
Sewing speed Max. 6,500 sti/min (at the time of intermittent operation)
V-belt type
Max. 6,000 sti/min (at the time of intermittent operation)
Direct-drive type
Speed of stitch at the delivery:
4,500 sti/min (at the time of intermittent operation)
Max. 5,000 sti/min (at the time of intermittent operation)
V-belt type
Max. 5,000 sti/min (at the time of intermittent operation)
Direct-drive type
Speed of stitch at the delivery:
4,000 sti/min (at the time of intermittent operation)
Needle gauge 3-needle ..... 5.6 mm and 6.4 mm
2-needle ..... 3.2 mm, 4.0 mm and 4.8 mm
Differential feed ratio 1 : 0.9 to 1 : 1.8 (stitch length : less than 2.5 mm)
(1 : 0.6 to 1 : 1.1, when the differential link hinge screw is changed)
Micro-differential feed adjustment mechanism is provided. (Micro-adjustment)
Stitch length 0.9 mm to 3.6 mm (can be adjusted up to 4.5 mm)
Needle UY128GAS #9S to #14S (standard #10S) UY128GAS #9S to #12S (standard #10S)
Needle bar stroke 31mm (33 mm when the eccentric pin is changed over)
Dimensions (Height) 450 x (Width) 456 x (Length) 331
Weight 48 kg (With solenoid type thread trimmer) , 42 kg
Lift of presser foot 8 mm (needle gauge : 5.6 mm without top covering), and 5 mm (with top covering)
Micro-lifter mechanism is provided.
Feed adjustment
method
Main feed ............... dial type stitch pitch adjustment method
Differential feed ..... lever adjustment method (micro-adjustment mechanism is provided.)
Looper mechanism Spherical rod drive method
Lubricating system Forced lubrication method by gear pump
Lubricating oil JUKI GENUINE OIL 18
Oil reservoir capacity Oil gauge lower line : 600 cc to upper line : 900 cc
Installation Table-mount type, Semi-submerged type
Noise - Equivalent continuous emission sound pressure level
(LpA) at the workstation:
A-weighted value of 79.5 dB; (Includes K
pA = 2.5 dB);
according to ISO 10821- C.6.2 -ISO 11204 GR2 at
4,500 sti/min.
- Equivalent continuous emission sound pressure level
(LpA) at the workstation:
A-weighted value of 76.5 dB; (Includes K
pA = 2.5 dB);
according to ISO 10821- C.6.2 -ISO 11204 GR2 at
4,000 sti/min.
@. AT THE BEGINNING
Remove xed band
1 for transportation before setting
up the sewing machine.
1
– 2 –
#. INSTALLING THE ACCESSORIES
WARNING :
To protect against possible personal injury due to abrupt start of the machine, be sure to start the
following work after turning the power off and ascertaining that the motor is at rest.
1. Installing the presser lifting solenoid
1) Screw solenoid bracket pin
1 supplied as
accessories in the tap located on the left side of the
solenoid installing section.
2) Adjust solenoid bracket pin
1 to solenoid bracket
pin hole 3 of presser lifting solenoid asm. 2, and
set the presser lifting solenoid asm. When setting
it, insert the presser lifting solenoid asm. into the
pin in the state that it is twisted on the right-hand
side.
3) When it is inserted into the pin, turn the presser
lifting solenoid asm. in the reverse direction, and
x it with screw 4 and washer 5. Then install it on
the machine head with screw 6, washer 7 and
spring washer 8.
4) Referring to the Instruction Manual for MF-7900
(^-14. Adjusting the presser foot lift
), adjust the
height of screw !0, and tighten nut
!1.
5) Lower presser lifting lever
9 until it comes in
contact with screw !0. Lower top end section
!2
of presser lifting solenoid asm.
2 to the lowest
position, and adjust with screws !3 (4 places) so
that the clearance between top end section
!2 and
presser lifting lever 9 is 0 to 0.5 mm.
Sound of solenoid may increase during using
presser lifter. When it increases, loosen 4
setscrews !3, lower solenoid to the place
where the sound is lessened, and x 4
setscrews !3. When adjusting, conrm that
presser lifting lever 9 comes in contact with
presser height adjustment screw !0.
1
9
!0 !1,
6,7,8
4,5
!2
!3
2
3
0 to 0.5 mm
– 3 –
* The instructions apply to the case the control box is installed on the table of the MF-7900(D).
To use any other machine head, install the control box on the table referring to the Instruction Manual for the
main body of the relevant sewing machine.
(1) Installing the SC-921 on the table ( Table-mount type )
2. Installation and setting SC-921
1) Install right and left support plates
7 and two
rubber seats 8 of the respective support plates.
2) Install control box mounting plate
9 on the
control box with four screws
!0.
3) Install the parts assembled in Step 2) on the
underside of support plates
7 with four screws
!1.
4) Install support plates
1 and the control box
2 on the table with mounting bolts asm.
7
supplied with the unit. At this time, insert the
nuts and washers supplied with the unit as
illustrated in Figure A so that the support plates
and the control box
2 are securely xed.
* The steps of procedure from the next one and
beyond are same with those for the table-xed
type machine head.
(2) Installing the SC-921 on the table ( Semi-submerged type )
1) Install control box 2 on the table with mounting bolt asm.
1 supplied with the unit.
At this time, insert the nuts and washers supplied with the unit as illustrated in Figure
A so that the support
plates and the control box
2 are securely xed.
2) Install the control box (or the one equipped with a small sized motor unit) on the table. Then, install the sewing
machine head on the table. (Refer to the Instruction Manual for the sewing machine.)
3) Install the mounting plate on the CP-18 panel
5 with four tapping screws 4 supplied with the unit.
At this time, take care not to allow the cable to be caught under the mounting bracket.
(Install the CP-18 on the table as illustrated in Fig.
B.)
4) Install CP-18 panel 5 on the table with wood screw
6.
1
2
6
5
Convex
washer
Spring
washer Hexagonal nut
Fig. A
4
6
Fig. B
1
9
!0
7
8
!1
1
2
– 4 –
(3) Connecting the cords
1) Pass cords 1 of the thread trimming solenoid,
reverse-stitching solenoid, etc. and the cord from
the motor through hole
A in the table to route them
down under the machine table.
2) Loosen screw
B in cover 2 with a screwdriver to
open the cover.
3) Connect 14P code 3 coming
from the machine head to
connector 6 (CN36).
4) Insert 3P cord 9 coming
from the machine head into
connector !0 (CN42).
5) Insert presser foot lifter cord 2P
4 into connector 7 (CN37).
6) Connect connector 5 coming
from the motor to connector
8
(CN30) on the circuit board.
7) Insert pedal sensor cable
!1 into connector !2 (CN34).
8) Insert motor fan cord
!3 into connector !4.
1. When using the AK device, set whether to use the AK device after conrming how to select the auto-
lifter function. (Refter to “#-2.(6) Setting of the auto lifter function” p. 7.)
2. Be sure to securely insert the respective connectors after checking the inserting directions since all
connectors have the inserting directions. (When using a type with lock, insert the connectors until
they go to the lock.) The sewing machine is not actuated unless the connectors are inserted properly.
In addition, not only the problem of error warning or the like occurs, but also the sewing machine and
the control box are damaged.
[Connecting the connector for the operation panel]
Be sure to turn OFF the power before
connecting the connector.
The connector for the operation panel is provided.
Paying attention to the orientation of the connector
!5,
connect it to connector (CN38)
!6 located on the circuit
board. After the insertion, securely lock the connectors
to prevent them from coming off easily.
7
4
5
8
3
6
9
!2!0
!1
!3
!4
!5
!6
1
A
2
B
– 5 –
4
321
4
321
4
321 Type of machine head Model name
F79 MF-7900/UT51
F79d MF-7900D/UT51
F79P
MF-7900/UT52
MF-7900D/UT52
(4) Setting procedure of the machine head
For the operation panel other than CP-18, refer to the Instruction Manual for the operation panel to be used
for the setting procedure of the machine head.
1) Call function setting No. 95.
2) The type of machine head can be
selected by pressing switch 3 (
switch 4).
* Refer to the "MACHINE HEAD
LIST" on the separate sheet or the
Instruction Manual for the machine
head of your sewing machine for the
type of the machine head.
3) After selecting the type of machine
head, by pressing switch 1 (
switch 2), the step proceeds to
96 or 94, and the display automatically
changes to the contents of the
setting corresponding with the type of
machine head.
– 6 –
4321
Fig. 1
(5) Setting the lower stop position of the needle bar
Call function setting No. 122. Check to
be sure that the lower stop position of
the needle bar is as shown in
Fig. 1. If
not, adjust the lower stop position of the
needle bar properly using function setting
No. 122. (Adjustment can be made within
the range of ±15°).
Produktspecifikationer
| Varumärke: | Juki |
| Kategori: | Symaskin |
| Modell: | UT51 |
Behöver du hjälp?
Om du behöver hjälp med Juki UT51 ställ en fråga nedan och andra användare kommer att svara dig
Symaskin Juki Manualer
8 Januari 2025
31 December 2025
31 December 2025
31 December 2025
21 Oktober 2024
21 Oktober 2024
18 Oktober 2024
14 Oktober 2024
5 Oktober 2024
1 Oktober 2024
Symaskin Manualer
- Symaskin Siemens
- Symaskin Bestron
- Symaskin Kenmore
- Symaskin Bernette
- Symaskin Mediashop
- Symaskin Hema
- Symaskin Bernina
- Symaskin Vendomatic
- Symaskin Hofmann
- Symaskin Toyota
- Symaskin Union Special
- Symaskin Primera
- Symaskin Veritas
- Symaskin Home Electric
- Symaskin W6
Nyaste Symaskin Manualer
31 Maj 2025
8 April 2025
5 Mars 2025
4 Mars 2025
1 Mars 2025
25 Februari 2025
25 Februari 2025
25 Februari 2025
25 Februari 2025
18 Februari 2025