Global SM 7830 AL Parts list manual

_GLGBAL_
SM 7830 AL
Spare parts
& instruction manual

Thank you very much for your choice of this double thread side
seam sewing machine. Please read
the manual carefully before use!
Main Warning s:
En su re that th e rotalioo of th e pulley confo rmabl e to
the red allow
oo the belt cover!
Faste11ed wid1 3 riveCs in va~ machineareas!
The
mach ine ha s passed CE I
•It
is extremely important that the electrical device must be soundly earthed!
•It is absolutely forbidden to remove any protection system provided by manufacturer while
machine ison!
•All setting and replacemen1 operation must be carried
out only by the qualified expert
personnel!
•For repairs, all tools and replacement parts must be qualified by manufacturer!
• Whenever, and whatever reason, the machine is to be demolished, certain basic
ru l es must be
observed to safoguard public heal
th and lhe environmen1 in which we Ji ve!
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CONTENTS
I. MA C HINE DESCRIPTION .. . .. ..................... ........ ........ ... • ..... . .............. 1
2. TECHNICAL FEATURES OF TIIE MACH I NE ...... . ... . ...... •. .. . ... . ...... .. ......... .. 1
3. PREPARAT I ON READY FOR USE ......................................... •. ......... . ....... I
4. REPLACEMENT AND ADJUSTMENT OPERATION ....... ........ ............. . .... . ..... 2
4.1 Adjustment of the needle guider ............................ . .. . ..................... . ......... 2
4.2 Adjustment of the winding tube .. ... ....................................... . .. .. .... .......... 3
4.3 Adjustment
of the shut1le ................. . .. •. ..... . .. . ...... ............... .......... .......... 3
4.4 Replacement of the curved awls .............. . ................ . ................ . ...... .. ...... 3
4.5 Adjustment
of th e siitch length ....................... . .......... . ..... . .. . .. . .. . ..... . .. ... ..... 4
4.6 Adjustment
of the curved awl's position ............ . ........................... . ............ .4
4.7 Adjustment of the upper and lower thread ............................... . .. . ............... .4
4.8 Adjustment of the upper presser foot.. ................. . ............ ... ..... . ................ 6
4.9 Adjustment
of the sewing backer ........... . .. . .. . .. . ....... . .. . .... . ............ . .. . .. . ....... 6
4.10 Adjustment
of the stopping position ................ . ......... •..• ...... . .................... 6
5. TROUBLESHOOTING AND MAINTENANC E ................ ....................... ?
5. 1 Electrical accidents and the remedy ..................................... . .. . .. . ................ 7
5.2
Maintenance .......................... .... ... . ................ .. .... . ...... .............. ... ....... 7
6. MAIN WARNING ................................... .. ....... . ...... .......... . ......... .. ........... 8
7. PARTS DRAWING. .... .. . ..... ...... ... ................. . .... ... ...... . ........ ..... .... . ........ . ... . .. 9
ELECTRJCAL BLOCK DI AGRAM .... ... . .... . ....... ... .. ............. ..... . ... .. ... . ....... 32
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I.MACHINE DE SC RlPTION
GR-368/2 outsole stitching machine is suitable to sew up side seams for the shoe upperand the
sh
oe sole, especially those for the thick sole and the working boot. The side seams can be fully
sewn up
in such a way as double lock stitch. IL is high in tear strength and it is easy to operate the
machine.
The electronic adjustable-speed motor is adopted to start and brake the machine. The main
shaft with the stepless speed regulating is
co ntrolled by the treadle. which is very Aexible. The
braking position is accurate with the error <5°. The automatic overload protective device is
equipped
in the machine. The motor will stop automatically within two seconds when lhe machine
is overloaded.
2. TECHNI CA L FEATURES OF THE MACHINE
Sewing speed
Stitch length
Sewing stitch
Stitching thickness
Presser foot height
Sewing needle
Sewing thread
Sewing motor
Total power
Total weight
machine dimensions
Steplessspeed regulating
J.5-9 mm
Two threads locking stitch
J- 18mm
20mm
200# / 230# / 260#
Compound thread or Li nen thread
750W/380V Three-phase
Or
750W/220V Single-phase
950W
400kg
69crn x 70cm x 142cm ( L x W x H )
3. PREPARATION READY FOR USE
3.1 Before test run, check if any part of the machine is loose and tu m the hand wheel
to see
if everything is all right.
3.2 First
of all, switch on the main switch to check if the rotation of the ma in shaft confomub le
to the red allow
on the belt cover. Jfthe direction is opposite. switch in the oth er way round.
3.3 Operate the Start pedal. (Fig.
I)
-- In neutral position, the presser foo1 is open.
-- Step on the pedal slightly, the presser foot presses the sewing material.
-- Step
on the pedal continuing, the main shaft rotates.
-
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Fig.I
neutral: presser foot is
open
step slightly, press the
sh oe
step again, working
3.4 Threading the lower thread as in dicated in Fig.2, the thread guider is used to introduce the
thread co
U,e l ower presser foot.
'·
tighten f 0
\ _:
loosen
fig.2
3.5 In case of emergency, press the "emergency stop button" quickly to cut off the powersuppl y.
After repair. tum the button accor di ng to the arrow to restart.
3.6Turn on the heating/light
in g switch to regulate the temperature of shuttle.
4. REPLACEMENT AND ADJUSTMENT OPERA Tl ON
4..1Adjustment of the needle guider:
To adju st the needleguider"s position(Fig.3), loosen the screw then rotate the needle guider.
Tighten the screw after adjustment.
-
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needle
guider
Fig.3
4.2 Adjus tm ent of the winding tube(Fig.4):
adjust the position of
winding tube
Fig.4
The co rrect position of the winding tube: Turn the pulley in lhe correct direction, let the
winding tube make the round
of the hook needle and the winding tube don 't touch the hook
needle. To adjust the winding tube(Fig.4). loosen the nut then move the winding tube to it's
correct position.
4. 3 Adju st mentof th e shuttlc(Fig.5):
Loosen the two fixing screw A on the gear(Fig.5). rotate the shuttle in clockwise direction or
in anti-clockwise direction.
adjust theshuttle after
loosen the sc
rew A
Fig.5
4.4 Replacement of the curved awls(Fig.6):
Fig.6
To replace the curved aw ls(Fig.6): Loosen the fixing nut, remove the old curved awls and
replace a new one, move the new curved awls 10 it's end position, tighten the fixing nut
at last.
-
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4.5A dju stment of the s tit ch l eng th (Fig.7):
The stitch length of the machine can be adjusted from 3.5 to 12mm.
To adjust the stitch length(Fig.7): loosen the screw A then move the adjusting h
an d le as
shown
in Fig.7. to adjust the stitch length.
4.6
Adjustment of th e c ur ved awl's position(Fig. 7) ,
If the curv ed awl is otfaet from the needle hole, loosen the screw 8 and rotate the screwC to
adjustthe curved
awrs position. Tighten the screw B after ad ju stment.
,r,o
adjust the position of the
curved awls by rotate this -
•,-. .r--sc·,
sc rew after loosen the
screwB
sc rew 8
Fi g.7
1
ad ju st the upper thread tension
by adjust these screws
Fig.8
4 .7 Adjustment of the upper a nd lower thread:
adjustthe stitch length
after loosen this screw
4.7.1 Adjust the
sc r ew of thread clamping plate on the bobbin hous in g to se t the tension of
upper thread.(as shown in Fig.8}
4.7.2 Rotate the adjusting knob to
se t the tension of lower thread. (as shown in Fig.2)
4.7.3 Loosen the two nuts and adjust the front braking block to
se t the intensity of lower
thread front braking. (as shown in Fig.9}
-
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4. 7.4 Rotate the eccentric pin or the adjusting nut to set the intensity of lower thread rear
braking. (as shown
in Fig.I0)
adjust the intensity
of front braking afte
loosen these nuts
)( IT<mt braiti,g
~~ bl ock
adjust I.he intensity
of I.he lower thread
rear braking by
rotate nuts
Fig.9 Fig.I0
4.7.5 Loosen the screw A then adjust the height of the rear take-up block to set the length of
lower thread has been discharged. (as shown in Fig. II)
/..
~¥>\.
·~
moref
~
rear take-up block
adjust the length
of lower thread has
been diacharged
by move the rear
take-up block.after loosen this screw
Fig.I I -
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4.8 Adju s tm ent of the up pe r pr ess er foot(Fig.12, Fi g.13):
The heighL of the upper presser foot can be ad ju sted by the operation (as shown in Fig.12).
The rig ht -and-left position of the upper presser foot can be adjusted by add or reduce the
adjusting pieces (as shown in Fig.
13) .
adjust the
po sition of the
upper presser
foot by increase
or reduce the adjusting pieces
adjust the height of ,,__.
the uppe r presser foot
afisr loosen these nuts
Fi g.J2
4.9Adjustment of the sewing backer(Fig.14):
I
Fig.13
The position of t he sew ing backer can be ad juste d after loosen the screw A or screw B(T he
detail is in dicated in Fi g. 14).
4.10Adjustment of the stopping position(Fig.15):
The needle stopping p os it ion is controlled by the co mputer and t he speed sensor on the main
shaft. Ad
ju st the rel at ive pos iti on between the sensor and the main shaft after loosen the two
screw on the sensor
so as to ad ju st the needle stopping position. (as shown in Fig.1 5)
rear
sewing ' front
backer
.,x 2'
~)/ /' ad ju st the position of
high, / / the sewing backer
I 1 ;1 after loosen this screw
low
/'· ~ -~
<:/JA~
~ ! ; /\
\djust t he height of
the sewing backer
ater loosen this screw
Pig.14
-
r~
~~\ \
/~ \\~ ) ,\
lJJ :~ .. ~ ,;,,
Fig.15
pos iti on after loosen
these screws
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5. TROUBLESHOOTING AND MAINTENANCE
5.1 Electrical acc id ents and the remedy
5.1.1 The main motor does not start
if lh e pilot lamp on the panel is not light. A certain
sound from the contactor can be heard when the
ma chine is started. The starting is OK when the
green pilot lamp above the governor is light. Otherwise, check
if there is any lack of phase or
anything wrong with connection. Restart after remedy.
5.1.2 If the machine is overloaded or any part is blocked in the course of operation, the pilot
lamp (green)
on the panel will flash continuously. C ut the motor off and remedy the trouble.
Then restart the machine.
5.1.3 If the pilot lamp for the motor starting flashes, open the electric box below to check if
the 2A and I0A cartridge fuses are blown out. If so, replace them. If the pilot lamp remains
flashing after restarting, a30V Gratz rectifierwith the type S8154 is required.
Caution! Connection must be cor rect and the earth wire is in good co ndition.
5.2 Maintenance
5.2.1 The machine parts
are lubricated by a timing automatic lubricating device. The electric
lubricator on the right side
of the machine feed the lubricating oil to the dislributing plant on the
upside
of machine. The distributiJ1g pl ant feed the oil to the dilforent machine parts by th e
copper tubing that connected with the distributing plant.
The oil feeding frequency and the duration
of the feeding can be set by the electric lubricator
(Fig
16 ). The quantity of the o il that is feed to the different machine parts passing the copper
tubing can
be set separately by the adjusting screw on the distributing plant.(Fig 17) Viscosity of
lubricating oil recommended : 209 cSt at 40°
knob 10 adjust knob to adjust
feeding duration feeding frequency
" I
, @ CE SW •~'1Jll'M111
I\ ll.lC I IOCl.ll ll ~Ult
Fig. 16
the manual
feed•oil button Fig.17
5.2.2 Keep cleans the control units of the computer and the motor. Avoid knocking when
th ey a,·e di smounted.
S.2.3 The needle, co nical needle and nc::ed le guard w ill be worn out after some time. They
should
be replaced in time.
5.2.4 Class I maintenance is required once every year. TI,e whole machine needs
dismounting and washing. Test run is needed before use. -
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