HIGHLEAD GC20638-25 User manual

IGHLEAD
GC20638-25/-25D
Long Arm Compound Feed Split Needle Bar Lockstitch
Sewing Machine
Instruction Manual
Parts Catalog
SHANGHAI HUIGONG N0.3 SEWING MACHINE FACTORY
From the library of: Diamond Needle Corp

From the library of: Diamond Needle Corp

--- CONTENTS ---
Instruction Manual
1. PREPARATION FOR OPERATION
1) Lamp leads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
2) Connection
of control box ............................................................. .
3) Adjustment of needle bar stop position .................................................... 2
2. CAUTIONS ON USE .................................................................. 2
1) Lubrication (1) ....................................................................... 2
2) Lubrication (2) ....................................................................... 2
3) Adjustment of oiling to rotating hook ...................................................... 2
1) Condition of oil lubrication .............................................................. 3
J) Cautions on operation ................................................................... 3
3. OPERATION
....................................................................... 3
1) How to attach needle .................................................................. 3
2) How to wind the lower thread . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
3) Selection ofThread .................................................................... 3
1) How to route the upper thread . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
:J) Adjustment of stitch length and reverse sewing .............................................. 4
6) Setting bobbin ........................................................................ 4
7) Threading of bobbin thread .............................................................. 5
H) Tension adjustment of bobbin threads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
CJ) Balance ofthrcad tension ............................................................... 0
I 0) Needle thread tension ................................................................. 0
I I) Adjustment of pressure of presser foot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
12) Timing between rotating hook motion afld needle motion ..................................... 6
13) Adjustment of Feed dog height .......................................................... 6
I
1
1) Adjustment the needle stop position. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
I;')) Needle bar stop position (left & right) ..... .
1
h) Walking foot and presser foot vertical stroke adjustment. ....... .
17) Relationship between rotating hook motion and take-up lever motion
l NJ Relationship between h\lOk nllltion ~111d opener motion .
l
\)) Relationship between needle motion and ked dog nHltillll
:.'OJ Safe clutch device
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
. . . . . . . . . . . . . . . . . . . . . . . . 7
. . . . . . . . . . . . . . . . . . 7
. . . . . . . . . . . . . . . . . 7
.......... H
.......... H
From the library of: Diamond Needle Corp

21) Adjustment ......................................................................... 9
22) Installation
of movable knife . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
23) Adjustment
of thread trimmer cam ...................................................... 10
24) Adjustment of threads tension release assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
25) Adjustment of scissoring pressure of movable knife and fixed knife . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
26) Sharpening of fixed knife ............................................................. 12
27) Adjustment for change of needle-to-needle distance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Parts Catalog
A, ARM BED MECHANISM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
B, THREAD TENSION REGULATOR MECHANISM ........................................ 16
C, ARM SHAFT*LOWER SHAFT MECHANISM ............................................ 20
0, PRESSER FOOT MECHANISM ......................................................... 22
L NEEDLE BAR & TAKE-UP LEVER MECHANISM ........................................ 25
F, TOP FEED ROCK SHAFT MECHANISM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
G, LOWER SHAFT & FEED ROCK SHAFT MECHANISM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
H, HOOK SADDLE MECHANISM ........................................................ 33
L KNIFT MECHANISM (1) ............................................................. 35
J, KNIFT MECHANISM (2) ............................................................ 37
K, TOUCH BACK AND DETECTOR MECHANISM ......................................... 40
L OIL LUBRICATION MECHANISM ..................................................... 42
] , ACCESSORIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
From the library of: Diamond Needle Corp

1. PREPARATION FOR OPERATION
1) Lamp Leads
A. When installing the illuminating lamp (6V, 15-20W), The connecting wire is attached on the back of
the Control box. It should be removed and connected by removing the insulating tube from the wire
and stripping properly.
The wire connections should be, then, insulated by wrapping insulating tape on
the wires.
CAUTION: The power switch must be turned off before connecting the lamp.
B. When the illuminating lamp is not used,
the end
of the lamp leads must be
insulated as
(a) or (b) as shown in the
figure on right side.
If a short circuit
occurs failing to insulate, the
transformer
in the control box will be possibly
burned out.
(a) Bare wire
Lamp leads
(b) Insulating tape
(2 to 3 turns wrapped)
Insulating
tape (2 to
3 turns
wrapped)
Lamp leads
CAUTION: The illuminating lamp must not be connected with any heater, such as a foot
warmer and others, in parallel. Otherwise, the load capacity will be exceeded. It may cause
transformer winding burned out.
C. Rotary direction
It is possible to
change the rotary direction of the motor by removing the rubber cap from the bottom
left side
of
the front cover on the control box, and push the internal direction selector switch. The
built-in lamp
in the internal switch is off when the motor is
rotating
counterclockwise as facing to the motor pulley, and on
when rotating
clockwise. The rotary direction has been set to
counterclockwise as facing to the motor pulley,
matching with the
machine prior to shipping.
2) Connection of control box(Fig.l)
The control box should be connected as shown to the right.
Note:
A. Be sure to turn the power switch off for safety before
connecting or disconnecting the connectors.
B. The combination of the machine heads with the motor control
panels are specified below. Use special care for the correct
combination when replacing the machine head or motor
control panel. Black
mark DOWN posit1on
fT
l
From the library of: Diamond Needle Corp

3) Adjustment of needle bar stop position(Fig.2,Fig.3)
A. Adjust of "UP" position: When the pedal is kicked down by heel, the machine stops at "'UP" position.
If the marks deviate larger than 3 mm, adjust as follows.
a. Disconnect the plug (12 pins) of cable from the
machine head.
b. Run the machine and stop at "UP" position.
c. While holding the pulley, insert the "adjusting @
tool" in the hole "A", then remove the tool.
B. Adjust of"Down" position: When the pedal is
"Neutral" the machine stops at "Down" position. If
the marks deviate large than 5 mm, adjust as follows.
a. Disconnect the plug (12 pins) of cable from the machine head.
b. Run the machine and stop at "Down" position.
c. While holding the pulley, insert the "adjusting tool" in the hole "'8", then remove the tool.
C. Confirm the stop operation, then set the plug (12 pings) coming from the machine head into the
receptacle.
2.CAUTIONS ON USE
1) Lubrication (l)(Fig.4)
Filling the oil to the fount.
Oil level should be periodically checked. If oil
level
is little,Please replenish oil to enough
For oil, Use white spindle oill.
2) Lubrication (2)(Fig.S)
When a new sewing machine is used for the first time, or sewing machine left out of use for a long time is
used again, replenish a suitable amount
of oil to the portions indicated by arrow in the fig.
Note: Lubricate the Hook Base everyday.
3) Adjustment of
oiling to rotating
~"
hook( Fig.6) Adjusting Screw
I
m
-2-
From the library of: Diamond Needle Corp

4) Condition of oil lubrication (Fig.S):
While operating the machine, check the condition of oil lubrication through the oil check window.
5) Cautions on operation
A When the power is turned on or otT, keep foot away from the pedal.
8 It should be noted that the brake may not work when the power is interrupted or power failure occurs
during sewing machine operation.
C Since dust in the control box might cause malfunction or control troubles, be sure to keep the control
box cover close during operation.
D
Do not apply a multimeter to the control circuit for checking; otherwise voltage of multimeter might
damage semiconductor components
in the circuit.
3.0PERATION
1) How to attach needle (Fig.7):
Note: Before attach needle, be sure to turn off the power.
Loosen the needle clamping screw: Hold the needles so that the
two needles side with the long grooved (faces each other). and
insert
it as deeply as it will go into the needle clamping holes,
tighten screws.
2) How to wind the lower thread (Fig.8):
Strength ofwinding: Particularly in the case of nylon or
polyester thread, wind the bobbin loosely. I .
Uneven winding: If the bobbin is wound unevenly. slide the thread guide toward the less wound portion of
bobbin.
Winding amount: When the bobbin
is wound excessively. loosen the adjusting screw. When the bobbin is
wound insufficiently. tighten the adjusting scre\v.
3) Selection of Thread (Fig.9):
xl
I 0
I-\ en winging'' ith an illllll-
)( unt V:'i nl' t'ulh capacit'
I ig.X
I Fig.9
··- _b=---===---=====~===,1__
From the library of: Diamond Needle Corp

It is recommended to use "S" twist thread in the left needle (Viewed from front), and "Z" twist thread in the
right needle.
When discriminate use
of needle thread is impossible, use "Z" twist thread in the needle. For bobbin thread,
"S" twist thread as well as "Z" twist thread can be used.
4) How to route the upper thread (Fig.lO, Fig.ll):
A Pass each upper thread through thread guide A
Note: when thin slippery thread (polyester thread for example) is used pass the thread through
thread guide Bas show in Fig.lO
B With the take-up lever located at the upper most position, pass each thread in the order in Fig. II.
Note: Pressing the upper thread loosening button, the upper thread can be pulled out easily.
A B A B A Needle thread
tension releasing button
Lead the Lead the
thread thread
leftward rightward
5) Adjustment of stitch length and reverse sewing (Fig.l2):
A Rotate the stitch length adjusting dial to change the stitch length
B Pressing the stitch length adjusting lever for reverse stitching.
6) Setting bobbin (Fig.13):
-4-
Fig. II
From the library of: Diamond Needle Corp

Leading the lower thread and install the bobbin
Pull out thread from side A, then install the bobbin case, Threading following CD~@; Put the bobbin case
to rotating hook, then replace
hook shaft; Press the bobbin bar, leading the lower thread over bedplate.
7) Threading of bobbin threads (Fig.14)
While holding the two needle Threads by left hand, rotate the hand-wheel one turn by right hand. By
pulling up the needle threads, as
shown in the figure, the bobbin threads will be lifted. Each combination of
bobbin thread and needle thread should be aligned and led backward.
8) Tension adjustment of bobbin threads (Fig.lS)
9) Balance of thread tension (Fig.16)
10) Needle thread tension (Fig.17)
turn
Needle thread tension should be adjusted
in reference to
bobbin thread tension. To adjust needle thread tension,
each tension adjusting nut.
Needle thread tension can be
also adjusted for special fabric and thread by
changing
intensity and movable range of slack thread adjusting spring.
1 t) Adjustment of pressm·e of presser foot (Fig. I8):
Tension
adjusting
screw
AO ~ ·= /2J
__; ~~C33£:::
Balance tension
BX ~~J~&
~ T;h't needle or loose
bobbin tension
cxd-~----i
bobbin tension 'I Fig. 16
Fig.18
From the library of: Diamond Needle Corp

A Pressure should be adjusted according to the material to be sewn.
B Turning the pressure adjusting screw to adjust the pressure
of presser foot
12) Timing between rotating hook motion and needle motion (Fig.19):
A Set stitch length to "6";
B When needle is lifted 2.4mm from the lower dead point,
the following position relationship should be maintained:
a. The upper edge of needle eye should be 2.3mm
below
the hook point
b. The hook point should be located at the center of
needle axis.
c. Gap between the hook point and the side face of
needle should be 0.05 mm
13) Adjustment of Feed dog height (Fig.20):
Height of feed dog should be adjusted for individual fabrics
with the following cautions:
Gap between hook point and upper edge of
needle eye
L_~
... ..,.~~·· ~
~~: :::, ____:.· O.OSmm
dead point
Center of
needle axis
---~
A Fabric will be damaged if the feed dog extends too high or pressure of presser foot is too large
B Even stitch length cannot be assured
if the feed dog is too low or
pressure
of presser foot is too small
C Feed dog height should be measured at the point where the needle
~0.8mm
is at the top position.
For light fabric: Approx 0.8mm
For usual fabric: Approx l.Omm
For heavy fabric: Approx 1.2mm
Adjustment procedure:
A Lay down the machine bed toward the other side;
.z;~ml1.0mm
I Fig.20
B
Tum the balance wheel by hand stop when the feed dog is raise to its highest position from the surface
of needle place;
C Loosen the Screw and adjust the height
of the feed dog;
D After adjusted, tighten the screw.
The feed dog height is factory-adjusted to 1.2mm
14) Adjustment the needle stop position ( 00 21):
A Loosen the needle bar ScrewA;
B Rotate the needle clamp B one circuit (amount
of Adjustment is
0.6mm), or loosen the needle bar screw C, rotate position screw D
-6-
Needle bac soew ,__ ~
Needle bar screw A--o4llllll
Position screw D -
Needleclamp B
~
s
Fig.21
From the library of: Diamond Needle Corp

half a circuit (amount of Adjustment is 0.3mm)
C Be sure to make the needle clamp facing left side, tighten needle bar screw C and A
15) Needle bar stop position (left & right) (Fig.19):
A Stop the motion of left-side needle bar:
Make the stopper wrench to the position L
B Stop the
motion of right-side needle bar:
Make the stopper wrench to the position R
C Two needles running at the same time:
Return the
needle bar of left or right from standstill to
running:
Press down restore plate, stopper wrench
restore to 0 position automatically
16) Walking foot and presser foot vertical stroke
adjustment (Fig.23):
When fabric with large elasticity is sewn, or when thickness of
fabric changes, the vertical stroke (movable range) of the
presser feet
should be adjusted as follows:
A Loosen the special bolt;
B The vertical
strokes of presser feet become minimum
when the crank rod is moved downward and set;
C The vertical strokes of presser feet become minimum
when the crank rod is moved upward and set;
D After the adjustment, tighten the special nut.
Special bolt Crank
Crank rod
The vertical strokes of presser feet can be adjusted within a range from 2mm to 6mm.
17) Relationship between rotating hook motion and take-up lever motion (Fig.24)
Fig.22
When the
timing belt (toothed belt) was removed for its replacement, for example, the relationship between
rotating hook
motion and take-up lever motion should be
adjusted as follows:
A Turn the balance wheel and stop when the take-up lever is
lifted to its
upper dead point.
B Lean the machine head backward and make sure the arrow
(timing mark) put on the timing belt is in line with the black
line on the
boss of lower shaft bearing.
C If the timing mark is not in line with the black line, remove
the
timing belt and install it again to adjust.
7
Timing belt sprocker
Fig.24
From the library of: Diamond Needle Corp

18) Relationship between hook motion and opener motion (Fig.25)
A Tum the balance wheel by hand and stop when the opener holder is located most remotely from the
throat plate.
B ~ake sure gap between the bobbin case holder A and
the opener is approximately 0.2mm.
C If the gap is too large or small, loosen the opener holder
set screw Band adjust position of the opener.
19) Relationship between needle motion and feed dog
motion
A Set feed length to "0" on the feed setting dial
B Lean the machine head backward. (Fig.26)
C Loosen the feed lifting rockshaft crank set screws A and B
D Set the needle at the lowest position. Adjust the distance
between presser rod and vipration prevention rod to 9mm
and temporarily tighten the feed lifting rockshaft crank set
screws A and B.(Fig.27)
E Check that the right feed lifting rockshaft crank is
connected with the link at right angle, as shown in Figure.
F If the connection is not at right angle, remove the back
cover, loosen screw C and move the right link to connect
Approx 0 2mm
Feed lifting rock Feed lifting rock
shaft crank (middle) shaft crank (right)
the right feed lifting rock shaft with the link at right angle.(Fig.28)
G After the completion of adjustment, fully tighten the screws A , B and C.
Fi .25
• At this time make certain that needle can enter the feed dog needle hole at the center of the hole.
Needle rod
Vibration
prevention
rod
Fig.27
-8-
Feed lifting rock
shaft crank (right)
From the library of: Diamond Needle Corp

20) Safety clutch device (Fig.21, Fig.22) :
Safety clutch device is installed to prevent the hook and cog belt from damage in case the
thread is caught into the hook when the machine
is loaded abnormally operation.
A Function of safety clutch:
a. When the safety clutch acts, the cog belt pulley will be
unloaded. Then the rotation
of hook shaft will stop. The
arm shaft only will rotate. Stop the operation
of
machine.
b. Clean the thread thoroughly which is caught into the
hook.
c. Turn the cog belt hub by hand, and check whether the
Push
button
hook shaft rotates lightly and properly, place the clutch device as follows.
8 How to set the safety clutch (Fig.29)
Fig.29
a. While pressing down the push button on the opposite side of bed by left hand, turn the balance
wheel slowly
by right hand away from you;
b. The balance wheel will stop by the gear plate, but turn the balance wheel more firmly;
c. Release the push button, the safety clutch device is set.
C Force applied to the safety clutch (Fig.30)
a. The force applied to the safety clutch Js the
smallest when the mark
of eccentric pin faces the
center
of the lower shaft. The force
proportionally increases as the mark faces the
outside;
b. To adjust the force slide the timing belt, loosen
the set screw. and turn the eccentric pin;
c. !\ ner the adjustment, tighten the set screw.
21) Adjustment
While mark
Timing Belt
Low Shaft
Eccentric Pin
Fig.30
Screwing the pin that connects the link
of back-sewing with the crank of back-sewing (down) can adjust the
tolerance
of between the stitches. Screwing the pin in clockwise can increase the stitch of forward sewing:
othemise. the stitch of back-sewing will be increased.
22) Installation of movable knife
A Installation of movable knife (Fig.31)
~l. Turn the balance wheel and lm1er the needle bar to the lcmcst position.
h. l'ush the (';1111 i'ollower crank so th~1t the cam mller enters into the thread trimmer cam groove.
c I urn the ln!~lllL'l' 11 hL'L'i LJJllil tilL' hi;Jd, m~lll point on tilL' ;mn meets the 11hite mark point on the
l)
From the library of: Diamond Needle Corp

balance wheel. Set the cam follower crank at this position with a screwdriver temporarily
preventing the cam roller coming out from the cam groove.
Bo~ A
TtHeacllwnrltfH
ruck1r1~] crank
Thread tr1mmer
rocking crank
d. Loosen the thread trimmer rocking crank clamp bolts A and B.
Fig.31
e. Adjust the movable knife so that the movable knife end slant portion protrudes 0-0.5 mm from the
fixed knife, as shown in Figure and tighten the bolts A and B.
B Gap between movable knife and bobbin case holder stopper (Fig.32)
a. Turn the balance wheel by hand until needle reaches the
Lowest position.
b. With the needle at the 10\yest position, depress cam follower
crank, turn the balance wheel until the movable knife
reaches the extremity
of its stroke.
c. Manually rotate the inner
hook in the direction indicated by
arrow in Figure and adjust gap between the movable knife
and the inner hook stopper to about 0.5 mm (the screws A
and B should be loosened for this adjustment).
23) Adjustment of thread trimmer cam
A Turn the balance wheel by hand until the needles reach the lowest position.
B Maintaining the needle
position, depress the
cam follower crank and
put the cam roller into
the groove
of thread
trimmer cam.
C Turning the balance
wheel by hand, adjust
Cam roller
Thread lmnrner can1
-10-
Black mark
pomt
nldsnoM
ntim-1
Fig.32
Fig.33
From the library of: Diamond Needle Corp

the thread trimmer cam so that the movable knife starts moving when the green mark point on the
balance wheel comes in line with the black mark point on the arm.
Note: To adjust, Loosen two thread trimmer cam clamp screws A.
24) Adjustment of needle threads tension release assembly (Fig.34)
A Turn the balance wheel by hand until the needles reach the lowest position.
B Maintaining the needle position, depress the cam follower crank and put the cam roller into the groove
of thread trimmer cam.
C Turning the balance wheel by hand, adjust the thread tension release cam so that the tension disc close
when the white mark point on the balance wheel comes in line with the black mark point on the arm.
D To adjust, loosen two tension release cam clamp screws A.
E Opening degree of tension disc should be adjusted with the tension release roller B mounted on the
convex portion of thread release cam, as shown in Fig. To adjust, loosen the screws C and draw the
wire.
F Make fine adjustment by loosening the nut
D.
G Loosen the nut D and make the outer casing approach rightward to increase the opening value.
White park point
I
Thread trimmer
cam
ScrewC
Cam follower
~Jut D
Arm
""-...
25) Adjustment of scissoring pressure of movable knife and
fixed V~rtife (Fig.35)
i\ Loosen the fixed knife bracket clamp bolt/\.
B Turn the vertical position adjusting set"C\\ l3 to adjust meshing
pressure and then righter the hexagon socket head cap scre'vv i\.
Note: Since excess pressure causes large torque to the thread
trim·11ing mechanism and trimming fitilurc. :tdju~t it so
II
point
I_
Fig.34
Fig.35
From the library of: Diamond Needle Corp

that thread can be trimmed with minimum pressure.
C
Move the movable knife and check that the thread can be sharply trimmed.
26) Sharpening of fixed knife
When the knives dull, the fixed should be sharpened as illustrated in Fig. Since it is very difficult to sharpen
the movable knife, replace it with a
new one when it dulls (Fig.36).
27) Adjustment for change of needle-to-needle distance (Fig.37)
A Replace the throat plate, feed dog and needle clamp. (Since the
throat plate and feed
dog are special parts designed for thread
trimming machine, be sure to use those specified by us.)
B Lean the machine
head backward.
C Loosen two connecting link clamp bolts J.
0 Remove the spring M.
E
Loosen the hook bracket clamp screws A and B and adjust gap
between each needle and hook.
F When the needles and hooks have
been adjusted, install the
spring M.
G Contact the
rocking cranks C and D
to the stopper pins E and F and
tighten the
connecting link clamp
bolt J.
H Tum the balance wheel by band until
the needles reach
the lowest
position.
Loosen the nuts G and H.
Connectrnq
l1nk
Sr.:rewB
Sr;mwA
Screw B
Fig.36
Lower
shaft
Cam follower
crank K
Cam roller
ThrencJ trrmmer
earn
J Depress the cam follower crank K and adjust the connecting rod L so that the cam roller can smoothly
enter the groove
of thread trimmer cam.
Adjustment of the cam groove and the cam roller
A Push the cam follower crank K so that the cam roller enters into the cam groove.
B Turn the
connecting rod Land adjust the clearance between the cam roller and the cam groove surface
Las small as possible, and tighten the nuts G and H.
C Push the cam follower crank K again and check that the cam roller enters into the thread trimmer cam
groove smoothly.
- 12 --
From the library of: Diamond Needle Corp

A.ARM BED AND ITS ACCESSORIES
9
4 (2) 5 6 7
10 41
40 39 38 37
30 29
From the library of: Diamond Needle Corp

A.ARM BED AND ITS ACCESSORIES
"' 0
N "'
oO
N
Fig. M
oO
Part No. Description -o M Remarks
No. 0 -o
N 0
:_;;
N
v u
0
AOI HA300B2090 Rubber plug 2 2
A02 HA300B2170 Screw
15 15
SMII/64 (40) x9
A03 H4716B8001 Oil guide plate I I
A04 H4717B8001 Thread take-up cover I I
A05 H4715B8001 Rubber plug I I
A06 H4718B8001 Arm side cover (left) I I
A07 H2000B2010 Rubber plug I I
A08 H4719B8001 Arm side cover (right) I I
A08 H4919B8001 Side cover (right) I I
A09 HA700B2060 Screw 2 2
SMII/64 (40) xS
AlO H2400B2100 Thread guide I I
All
HA307B0673 R•1bber plug I I
Al2
H4715H8001 Push button I I
Al3 H4714H8001 Spring I I
Al4 H007013050 E-type ring I I
Al5 H2000M0090 Cap 3 3
Al6 H3200B2100 Screw I I SM9/64
(40) x6.5
Al7 H3212B0066 Thread guide I I
AIS H3000D2160 Screw I I SM9/64
(40)
x4.5
Al9
H4726B8001 Thread guide I I
A20 H0213B8001 Face plate I I
A21 H2400B2080 Screw 2 2 SM3/16 (
28) X 12.1
A22 H2400B2070 Thread guide I I
A23 H0212B8001 Shaft supporter I I
A24 H2400B2060 Spacer I I
A25 H3200B2060 Oil guide plate I I
A26 HA7311C606 Screw 2 2
SMII/64(40)xl5
A27 i-r6o2o3o2oo Pin 2 2 A
A28 HAIOOB2110 Screw 2 2
SMII/64(40)x5.5
A29 H3219B0067 Slide plate complete I
A30 H3200B2170 Screw I
SMI3/64 (32) x4.8
A31
H4912B8001 Screw 2
SMI/4 (24) x9
A32 H4913B8001 Supporter I
A33 H4914B8001 Screw 4 SM9/64 C
40) x6
A34 H4915B8001 Cover I
A35 H4911B8001 Cover I i
A36 H4733B8001 Slide plate(right) I I
A37 HA300B2190 Screw I I
SMII/64 (40) x8
A38 H4740B8001 Needle plate I
A38 H4741B8001 Needle plate I
A38 H4940B8001 Needle plate I
A38 H4941B8001 Needle plate I
A39 H3200B2120 Screw I I SM9/64 C
36) x6.5
-14-
From the library of: Diamond Needle Corp

A.ARM BED AND ITS ACCESSORIES
V"l
Cl
'";I
V"l
Fig.
00
'";I
Description M
00
Part No.
'D
M Remarks
No. 0
'D
N 0
u N
0 u
0
A40 H4746B8001 Slide plate(left) I I
A41
H700707101 Bobbin winder I I
A42 H7014D7101 Down-lead complete I I
I I I II
I I
-15-
From the library of: Diamond Needle Corp

B. THREAD TENSION REGULATOR MECHANISM
1 2 3 4 8 9 10 11 12 13
14 15 16 17 18
-----------------------20
-----------21
~~h 22
48 47 46 45 44 43 42 41 40 39 38 37 36 35
-16-
M!:..:------ 23
34 33 32 31 30
24
25
26
27
28
29
From the library of: Diamond Needle Corp