artisan 797 AB-800 User manual

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CONTENTS
l.Instruction Manual
1, SAFETY PRECAUTIONS 3
10, LUBRlCATION."" ,., ,.. ,.. " ", , ",." , " .. , , , ,7
11, CONDITION OF OIL LUBRlCATION.", .. ,. ,.. ,.. , ,.. , , '" ,.. ,.. ,., , ,7
14, PERIODICAL CLEANING, , , , , ,8
15,HANDLING INSTRUCTIONS (MOTOR AND CONTROL BOX).. , ", , , ,9
16, INSTALLATION OF BELf COVER." .. " , " " " ,.9
21, ADJUSTING THE THREAD TENSION "., '., ,.", .., , , " ' ,.11
22, UPPER THREAD TENSION "., , " ,12
29, ADJUSTMENT OF WALKING FOOT AND PRESSER FOOT, ,.. ,., ,.., , ,.. , ,.,l4
2, PRECAUTIONS BEFORE STARTING OPERATION 3
3, PRECAUTIONS FOR OPERATING CONDITIONS 3
4, SPECIFICATIONS "", .. ,.. ", .. ,.. ".",.,.,.", "." ,., , ,., ,., .. " .4
5, POWER CABLE CONNECTION ,.,,.,, ,,,., ,,,,., ,,.,, ,,,, ,,.,,.. ,.' ., ,.. .4
6, CONNECTION OF CONTROL BOX ,." , ,., , , 5
7, INSTALLING THE BELT, ,." " , , ,., , '" ,.. ,.. , 6
8, ADJUSTMENT OF NEEDLE BAR STOP POSITION " ,., "' , ,, , 6
9, INSTALLING THE KNEE LIFTER , ,.. " , ' , , " 7
12, ADJUSTMENT OF THE HOOK LUBRICATION" " , " , , , .. 8
13, ADJUSTMENT OF OIL PUMP , ," , , , , 8
1:, HOW TO WIND THE LOWER THREAD " " .. , ,, " 10
18, HOW TO ATIACH ANEEDLE , , , , , 10
19, HOW TO ROUTE THE UPPER THREAD " " , , 11
20, ADJ USTMENT OF STITCH LENGTH AND REVERSE SEWING. , ,.. , , , ,,, 11
23, LOWER THREAD TENSION , , ,.. , .. , .. , , , , 12
24, ADJUSTMENT OF PRESSER PRESSURE, ,., ,., , , , 12
25, FEED DOG HEIGHT , , , 13
26, ADJUSTMENT OF FEED DOG INCLINATION ", " , 13
27, ADJUSTMENT OF STITCH LENGTH AND FORWARDIBACKWARD, , 13
28, PRESSER BAR LIFTER., , """" ,.. "", , ", '."", '" ,.. " '.',., .. ".,., ,'." ,, 14
30, ADJUSTMENT OF FEED TIMING ', .. ,., , ". '" , ' ' '.. , 16
31, ADJUSTMENT OF THREAD TRIMMER MECHANISM " 16
2.Parts Catalog
A. ARM BED AND ITS ACCESSORIES , , " 'j"20
B. SEWING MECHANISM , , .. , , 23
C. SEWING MECHANISM & FEED ROCK LOWER SHAFT, "." "., .. , " ,., 26
D. STITCH LENGTH MECHANISM , , , , , 29
E. UPPER FEED ROCK SHAFT MECHANISM.. , , , 32
F. UPPER FEED LIFTING ROCK SHAFT MECHANISM , , ,.. , 34
G. PRESSER FOOT MECHANISM , ,., 37
H. KNIFE ACTUATING MECHANISM 39
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1. TOUCH BACK & DETECTOR MECHANISM .42
J. On... LUBRICATION MECHANISM .44
K. ACCESSORIES .46
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1, Safety precautions:
1) When tlrrning the power on, keep your hands and fingers away from the area around/under the needle and
the area around the pulley.
2) Power must be turned offwhen the machine is not inuse, or when the operator leaves the seat.
3) Power must be turned offwhen tilting the machine head, installing or removing the "V" belt, adjusting the
machine, or when replacing.
4) Avoid placing fingers, hairs, bars etc., near the pulley, "V' belt, bobbin winder pulley, or motor when
the machine
is in operation.
5) Do not insert fingers into the thread take-up cover, under/around the needle, or pulley when the machine is
in operation.
6) If a belt cover, finger guard, eye guard are installed, do not operate the machine without these safety
devices.
2" Precautions before starting operation:
I) Never operate the machine before filling the machine's oil pan.
2) When a new sewing machine is first turned on, verify the rotational direction of the pulley with the power
on.
3) Verify the voltage and phase (single orthree) with those given on the machine nameplate.
3" Precautions for operating conditions:
1) Avoid using the machine at abnormally high temperatlrres (35·C or higher) or low temperatlrres (5·C or
lower) .
2) Avoid using the machine in dusty conditions.
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4, Specifications:
~
Specifications GC0388-D GC0388
Material weight Heavy
Max. sewing speed 2,000
rpm
Stitch length
0-8.0mm
Needle bar stroke 38.0mm
~eadtake-upJeverstroke
73.0mm
Alternating movement 2.0-5.0mm
Walking foot alternate Dial
operating system
Feed dog height 1.0mm
Needle DPX
17 22#
Presser
By hand 6.0mm
foot stroke
By knee 16.0 mm
Fully rotating Fully rotating
Hook
automatic lubrication
(for thread
trimmer),
automatic
lubrication,
Large Large
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Lubrication system Automatic
Thread trimmer 0 X
Touch back
0
5, Power cable connection:
I) Connection to power supply:
Each connector(plug) should be completely set in
the corresponding receptacle of the control box afler
checking
the connector shape and mating direction.
( I )
When a three-phase motor is used, connect "U" phase to the red lead, "V" phase to the white lead,
phase to the black lead. Motor rotation direction depends on the internal switch setting in the control box.
Insulating tape I
CD
® (wrap 2 - 3 turns) I
Bare wire
I
Insulating
tape (wrap
2- 3 turns)
Lamp leads
Lamp leads
Fig.1 Fig.2.
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Note: The green wire must be connected to the ground terminal in order to properly ground the
motor.
e 2) The appropriate power fuse capacity is as follows:
Three-phase power source:
200~240V : lOA
Single-phase power source: IOO-120V: 15A
2) Lamp leads
(
1) When installing a 'work lamp (6V, IS-20W), remove the insulation from the leads at the back of the
control box, strip the wire and connect them appropriately insulating the connections using insulating tape.
Note: The I)ower switch must be turned off before connecting the lamp.
(2) When a work lamp is not used, the lamp lead ends must be insulated as shown in Fig.(1) or Fig.(2) so
that the two leads
do not shortcircuit. If this is not done, the transformer in the control box will be bwned.
Note: The work lamp must not be connected in parallel to any heater, such 8!Nl foot warmer.
3) Direction of rotation
To change motor rotation direction, remove the rubber cap (see Fig. 3) at the bottom left of the motor front
coyer and push the internal direction selector switch.
Rotation direction has been set
to countercloch.'Wise as seen from the motor pulley before shipment.
Routing the maching cords
Round hole in table
15mm
(load of abOUl 1 kg)
Fig.4
6
.. Connection of control box (Fig.3):
The control box should be connected as shown Fig,3,
Note:
( 1) Be sure to turn the power switch off before connecting or disconnecting the connectors.
(2) The combination of t.he machine heads with the motor control panels are specified below. Use
special care to ensure the correct combination when replacing the machine head
or motor control panel.
Machine head model Control box model
GC0388-D XC-AM-AI020
XC-AM-B2020
Fig.3
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lSI mark
7" Installing the belt (Fig.4):
1) Use a V-belt for sewing machine use, type M.
2) To adjust the belt tension, change the motor height by turning the tension adjust nuts so that the belt
sinks about I5nun when depressed by hand at the center ofthe belt span.
If the tension
is too low, the speed may not be consistent in the low or medium range, or the needle may
not stop
in the proper position. If the tension is too high, the motor bearings will deteriorate more rapidly.
8" Adjustment of needle bar stop position(Fig5, Fig6, Fig7):
1) Adjustment of "UP" position
When the pedal is kicked down by heel to cut the thread, the machine stops in the
"UP" position. If the
marks deviate more than 3mm, adjust
as follows:
(
1) Disconnect the plug (12 pins) fr0rr. the control panel;
(
2) Run the machine and stop in the "UP" position;
(3) While holding the pulley, insert the adjusting tool into the two holes marked "A", then rotate the pulley.
2) Adjustment of "DOWN" position
When the pedal
is returned to the neutral position, the machine stops in the "DOWN" position. If the
marks deviate more than 3mm, adjust as follows:
( 1) Disconnect the plug (12 pins) from the control panel:
(
2) Run the machine and stop in the "DOWN" position;
(3) While holding the pulley, insert the adjusting tool into the two holes marked "B", then rotate the pulley.
3) Confirm the stop operation then the plug (12 pins) coming from the machine head into the receptacle.
3rd mark
I lS~-~-:;-~Whill~;; .. up.:--~.
~ ._ pOSIl~.~._~,
, 3rd mar~ Black "Down" .
I. ~ po~tlon ..
Fig.5 Fig.6
(a~
Mark (BLACK)
.," .:
" Fig.7
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9... Installing the knee lifter (Fig.8) :
1) Pull out the knee lifter shafts (on the right and left) as far as possible, and properly set them.
2) Install the drive arm on each shaft.
3) Set a link between the right and left drive arms to COlmect them.
4) Install the knee lifter lever on the left drive ann.
Knee lifter lever
Link
Shoulder screw
Fig.8
10 ... Lubrication (Fig.9):
Pour oil up to position" A" of the oil tank.
Dming operation, check the oil level periodically, and in cases where the oil level is below position "B",
replenish the oil supply up
to position "A".
Use white spindle oil.
Oil check window
Knee lift pin
Fig.1
11... Condition of oil lubrication (Fig.lO):
While operating the machine, check the condition of oil lubrication through the oil check window.
/A\ f6\.B
\._oj \Dj
Oil removing screw
Fig.9
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12 .. Adjustment of the hook lubrication (Fig.H):
Adjustment can be done by turning screw "A".
( 1) When the screw has been fully tightened Maximum
(3) When the screw has been fully loosened Maximmn
Note; After adjustment of this screw, the machine should be operated for at least 30 seconds, then
check the oil mist from the hook.
18\
Decrease Increase
Fig.H
By-pass hole
Fig.12
13 ... Adjustment of oil pnmp (00 12):
The standard adjustment is as follows:
The adjusting plate keeps the bypass hole fully closed. To decrease splashing, open the bypass hole
appropriately.
14 ... Periodical cleaning (Fig. 13, Fig.14, Fig.15):
Clean the feed dog, hook and oil pump periodically.
Maintenance ofmoter: Remove dust from the motor filter every one or two months.
Control box: Remove dust from the connector.
'--,
Hool<
Feed dog base
Fig.13 Fig.lSFig.14
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15 ... Handling instructions (Motor and control box) (Fig.16):
I) Keep your feet away from the pedal when turning
the power on or off.
2) Always turn the power offwhen leaving your seat.
3) The brakes may fail if the power is switched off
or power failure occurs during operation of the sewing
machine.
4) The control box cover must be kept closed during
machine operation to prevent misfunction caused by
the entry of dirt.
5) The control circuitry must not be checked with a
multimeter to protect the semiconductor parts from voltage.
6) The power switch must be turned offbefore tilting
the machine head or touching the needle.
7) The three-phase motor must be grounded using RUbber plug
,grOuIldwire (GREEN). The single-phase motor must
~ot be wired to a starburst connection.
8) When manipulating the switch in the control box, first turn off the power switch, then open the front cover
(Fig.16). If you have to open the bottom cover, wait for 10 minutes after the power switch has been turned off,
slnce a high voltage is applied inside the box. (This is vital to discharge the built-in capacitors).
9) Use the motor away from high noise sources such as high-frequency welders.
10) A suitable capacity is l5A for a single-phase, and lOA for three-phase motor respectively.
11) The detector uses an optical detecting element. Do not allow dirt, dust., oil etc., to attach to the detecting
plate when the machine pulley has been removed for adjustment. If dirty, gently wipe it off while avoiding
scratching the plate. Also, care should be taken to avoid oil soaking into the crevices ill the plate.
16... Installation of belt cover:
Be sure to install the belt cover for safety.
Fig.16
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