HIGHLEAD GC1088 Series User manual

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Purchasing Dept
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® HIGHLEAD
GC1088 Series
Hig Speed Sing Needle Lockstitch
Industrial Sewing Machine
INSTRUCTION MANUAL

From the Library of Superior Sewing Machine & Supply LLC
BEFORE OPERATION
l. Never operate the machine unless its oil pan has been filled
with oil.
2. After setting up the machine,check the direction of motor
rotation. To check it, turn the handwheel by hand to bring
the needle down, and turn the power switch ON while observing
the handwheel. ( The handwheel should turn counterclockwise
as observed from the handwheel side.)
3. Do not use a larger motor pulley for the first one month.
4. Confirm that the voltage and phase ( single or 3-phase)
are correct by checking them against the ratings shown on
the motor nameplate.
OPERATION PRECAUTIONS
l. Keep your hands away from the needle when you turn the power
switch ON or while the machine is operating.
2. Do not put your fingers into the thread take-up cover while
the machine is operating.
3. Be sure to turn the power switch OFF before tilting the
machine head
or removing the V belt.
4. When an operator leaves from the machine,make sure to turn
off the power.
5. During operation, be careful not to allow your or any other
person' s head or hands to come close to the handwheel, V
belt, bobbin winder or motor. Also,do not place anything
close to them. Doing so maybe dangerous.
6. If your machine is provided with a belt cover, finger guard
or any other protectors, do not operate your machine with
any of them removed.
7. Don' t clean the face of machine head with thinner.
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From the Library of Superior Sewing Machine & Supply LLC
1. INSTALLATION (Fig. l,Fig.2,Fig.3,Fig.4)
* Installing the oil pan
1) The oil pan should rest on the four corners of the machine
table groove.
2) Fix two rubber seats CD on side A ( operator' s side) using
nails® as illustrated above. Fix two cushion seats@ on
side B ( hinged side) using nails®· Then place oil pan
@ on the fixed seats. ( Fig. 1, Fig. 2 )
3) Fix hinge CD into the opening in the machine bed, and fit
the machine head to table rubber hinge ® before placing the
machine head on cushions @ on the four corners. ( Fig. 3 ,
Fig. 4 )
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Fig.I
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Fig.2 ®
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2

From the Library of Superior Sewing Machine & Supply LLC
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Fig.3
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Fig.4
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3

From the Library of Superior Sewing Machine & Supply LLC
2.LUBRICATION ( Fig.5, Fig.6)
1. Information on lubrication ( Fig.5)
* Before staTting the machine
1) Fill Oil pan CD with sewing machine oil (10 white oil) up
to HIGH mark A.
2) When the oil level lowers below LOW mark B, refill the oil
pan with the specified oil.
3) When you operate the machine after lubrication, you will
see splashing oil through oil sight window @ if the
lubrication is adequate.
4) Note that the amount of the splashing oil is unrelated to
the amount of the lubricating oi 1.
* Precaution
When you first operate your machine after set up or
after an extended period of disuse, run your machine
at 3, 000 s. p. m. to 3, 500s. p. m. for about 10 minutes
for the purpose of break-in.
Fig.5 Fig.6
2. Adjusting the amount of oil supplied to the face
plate parts( Fig.6)
1) Adjust the amount of oil supplied to the thread take-up
and
needle bar crank@ by turning adjust pin CD.
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From the Library of Superior Sewing Machine & Supply LLC
2) The minimum amount of oil is reached when marker dot A is
brought close to needle bar crank ® by turning the adjust
pin in direction B.
3) The maximum amount of oil is reached when marker dot A is
brought to the position just opposite from the needle bar
crank by turning the adjust pin in direction C.
3. ADJUSTING THE AMOUNT OF OIL SUPPLIED TO THE
HOOK ( Fig.7 ,Fig.8 ,Fig.9)
1) After cooling, the machine may be idling for three minutes
( operating continued properly ). ( Fig. 7 )
(2) The place of conrirmcd
Cf; The amount of oi I cnnfi rmed pnper
Hnok
Hushing
'Rr1s1"~ plat<:
The amount of Oil re:servoir
oil confirmed paper
Fig.7
2) The amount of oil confirmed paper must be inserted in the
state when the machine is operating.
3) Oil in the oil pan is confirmed within HI and LOW.
4) The amount of oil confirmed is for five seconds ( please
use the clock with the second).
* The proper amount of oil manual ( Fig.8)
1) The amount of oil can be adjusted according to the different
sewing process but it must be suitable amount.
*Otherwise the hook will generate heat or the sewing
material will be contaminated.
5

From the Library of Superior Sewing Machine & Supply LLC
2) Use the amount of confirmed paper for three times to observe
the amount of oil. Adjust the screw until the mark on the
paper hasn't changed.
fhe amounl of oil
1mm
Min
Fig.9
The amounl of oil
Max
Fig.8
* Adjusting the amount of oil supplied to the hook
( Fig.9)
1) More oil is supplied as oil amount adjust screw mounted
on
the hook driving shaft is turned toward+ in direction
A. As the oil amount adjust screw is turned toward - in
direction B, the amount of oil supplied will be decreased.
2) After adjusted, the machine must be idling for thirty
seconds. It can be confirmed the state of oil supplied.
6

From the Library of Superior Sewing Machine & Supply LLC
4.ATTACHING THE NEEDLE (Fig.IO)
* Turn the motor power OFF before starting to attach
the needle.
#
A needle of DBX 1 14 should be used. Select a proper needle
size according to the count of thread and the type of
material used.
1) Turn the handwheel until the needle bar reaches the highest
point of its stroke.
2) Loosen screw @, and hold needle CD with its indented part
A facing exactly to the right in direction B.
3) Insert the needle in the direction of the arrow until it
will go on further.
4) Securely tighten screw @.
5) Check that long groove C of the needle is facing exactly
to the left in direction D.
-@
®
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.......::___~-- __ .----
Fig.to
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From the Library of Superior Sewing Machine & Supply LLC
5. SETTING THE BOBBIN INTO THE BOBBIN CASE
( Fig. 11 )
1) Hold the bobbin in a way that the thread open end is
directed to the left as observed from you, and set the
bobbin into the bobbin case.
2) Pass the thread through thread slit A, and pull the thread
in direction B. By so doing, the thread will pass under the
tension spring and come out from notch B.
3) Cheek that the bobbin rotates in the direction of the arrow
when thread C is pulled.
Fig.11
8

From the Library of Superior Sewing Machine & Supply LLC
6. THREADING THE MACHINE HEAD( Fig.12 )
Fig.12
7.ADJUSTING THE STITCH LENGTH ( Fig. 13)
1) Turn stitch length dial CD in the direction of the arrow,
and align the desired number to marker dot Aon the machine
arm.
2) The dial calibration is in millimeters.
3) When you want to decrease the stitch length, turn stitch
length dial CD while pressing feed lever @ in the
direction of the arrow.
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