JUKI DSC-245, Instruction Manual

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5. Be sure to turn the power off and check to be sure that the machine and motor completely stop before re-
moving the belt cover and V-belt in order to prevent accident caused by abrupt start of the machine or motor.
6. If a servomotor is used with the machine, the motor does not produce noise while the machine is at rest.
Be sure not to forget to turn the power off in order to prevent accident caused by abrupt start of the motor.
7. Never use the machine with the cooling opening of the motor power box shielded in order to prevent fire
accident by overheat.
Lubrication
1. Be sure to use JUKI genuine oil and JUKI genuine grease to the parts to be lubricated.
2. If the oil adheres on your eye or body, be sure to immediately wash it off in order to prevent inflamma-
tion or irritation.
3. If the oil is swallowed unintentionally, be sure to immediately consult a medical doctor in order to pre-
vent diarrhea or vomiting.
Maintenance
1. In prevention of accident caused by unfamiliarity with the machine, repair and adjustment has to be
carried out by a service technician who is thoroughly familiar with the machine within the scope defined
in the instruction manual. Be sure to use JUKI genuine parts when replacing any of the machine parts.
JUKI assumes no responsibility for any accident caused by improper repair or adjustment or the use of
any part other than JUKI genuine one.
2. In prevention of accident caused by unfamiliarity with the machine or electrical-shock accident, be sure
to ask an electrical technician of your company or JUKI or distributor in your area for repair and mainte-
nance (including wiring) of electrical components.
3. When carrying out repair or maintenance of the machine which uses air-driven parts such as an air cyl-
inder, be sure to remove the air supply pipe to expel air remaining in the machine beforehand, in order to
prevent accident caused by abrupt start of the air-driven parts.
4. Be sure to check that screws and nuts are free from looseness after completion of repair, adjustment
and part replacement.
5. Be sure to periodically clean up the machine during its duration of use. Be sure to turn the power off
and verify that the machine and motor stop completely before cleaning the machine in order to prevent
accident caused by abrupt start of the machine or motor.
6. Be sure to turn the power off and verify that the machine and motor stop completely before carrying out
maintenance, inspection or repair of the machine. (For the machine with a clutch motor, the motor will
keep running for a while by inertia even after turning the power off. So, be careful.)
7. If the machine cannot be normally operated after repair or adjustment, immediately stop operation and
contact JUKI or the distributor in your area for repair in order to prevent accident that can result in per-
sonal injury or death.
8. If the fuse has blown, be sure to turn the power off and eliminate the cause of blowing of the fuse and
replace the blown fuse with a new one in order to prevent accident that can result in personal injury or
death.
9. Be sure to periodically clean up the air vent of the fan and inspect the area around the wiring in order to
prevent fire accident of the motor.
Operating environment
1. Be sure to use the machine under the environment which is not affected by strong noise source (electro-
magnetic waves) such as a high-frequency welder in order to prevent accident caused by malfunction of
the machine.
2. Never operate the machine in any place where the voltage fluctuates by more than "rated voltage ±10 %"
in order to prevent accident caused by malfunction of the machine.
3. Be sure to verify that the air-driven device such as an air cylinder operates at the specified air pressure
before using it in order to prevent accident caused by malfunction of the machine.
4. To use the machine with safety, be sure to use it under the environment which satisfies the following
conditions:
Ambient temperature during operation 5°C to 35°C
Relative humidity during operation 35 % to 85 %
5. Dew condensation can occur if bringing the machine suddenly from a cold environment to a warm one.
So, be sure to turn the power on after having waited for a sufficient period of time until there is no sign
of water droplet in order to prevent accident caused by breakage or malfunction of the electrical compo-
nents.
6. Be sure to stop operation when lightning flashes for the sake of safety and remove the power plug in
order to prevent accident caused by breakage or malfunction of the electrical components.
7. Depending on the radio wave signal condition, the machine may generate noise in the TV or radio. If this
occurs, use the TV or radio with kept well away from the machine.
8. In order to ensure the work environment, local laws and regulations in the country where the sewing
machine is installed shall be followed.
In the case the noise control is necessary, an ear protector or other protective gear should be worn ac-
cording to the applicable laws and regulations.
9. Disposal of products and packages and treatment of used lubricating oil should be carried out properly
according to the relevant laws of the country in which the sewing machine is used.
– 17 –
2. Installation process
1) Fit spring over screw . In this state, fix
feed bar hinge stud .
2) Attach feed driving pin in place.
3) Attach feed bar block A on feed bar oscil-
lating arm .
4) Attach feed bar block shaft on feed bar .
5) Attach feed bar block B in feed bar block
shaft using E ring .
6) Attach feed on feed bar with feed set-
screw .
7) Attach feed bar block shaft and feed bar
on which feed has been attached in place
on feed bar hinge stud .
8) Install spring support shaft in place.
9) Tighten feed setscrew to allow the needle
to come just at the center of the needle hole
in the feed .
10) Top cover spring of the bed,feed bar shaft
cover and screw of the feed bar shaft
cover in place.
11) Fix top cover of the bed by tightening
screw in the top cover of the bed.
12) Attach throat plate in place and fix it using
screw of the throat plate.
13) Install presser foot (asm.) and walking foot
in place.
(Caution)
1 ． The parts attached with an asterisk ( * ) are the exclusive parts for the DSC-245V-4 or -7.
2 ． The feed driving pin has engraved marker lines. Use the pin which has many marker lines to raise the feed dog,or
use the pin with less marker lines to lower it.
Note No. Part No. Part Name Q'ty Remarks
22 B15242450A0 Presser foot (asm.) 1
23 B1470245000 Walking foot 1
24 SS2110915SP Screw in throat plate 2 11/64 40 thread ridges, L=8.5
25 B1105245000 Throat plate 1
* D1105245E00 Throat plate 1
26 SS2090710TP Screw in top cover of bed 1 9/64 40 thread ridges, L=7
27 B1173245000 Top cover of bed 1
* D1173245E00 Top cover of bed 1
28 B1175245000 Spring of top cover of bed 1
29 B1613245000 Feed 1
* D1613245E0A Feed 1
30 B1645245000 Feed bar block 1
31 RE0300000K0 E ring 1
32 B1644245000 Feed bar block B 1
33 B1643145000 Feed bar block A 1
34 B163224500C Feed driving pin 1 Selective part (caution 2)
35 B1641245000 Feed bar hinge stud screw 2
36 B1642245000 Feed bar hinge stud screw spring 2
List of parts to be replaced
Part No. B163224500A B163224500B B163224500C B163224500D B163224500E
Length(mm) 5.7±0.05 5.9±0.05 6.1±0.05 6.3±0.05 6.5±0.05
Number of marker lines 1 2 3 4 5