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4

11

Machine Safety Rules

Safety instructions in this manual are defined as Danger, Warning and Caution.  

If they are not properly observed, physical injuries or machine damage might occur.  

: This mark must be observed. Otherwise, danger could result during machine installation, transportation and

operation.   

: When this mark is observed, machine-related injuries could be prevented.  

: When this mark is observed, machine errors could be prevented.  

Caution

Warning

Danger

1-1) Transportation 

Danger

1-2) Installation

Warning

1-3) Repair

Caution

Those, who fully understand the safety rules, should transport the sewing machine. The

following instructions must be observed during transportation:

At least two people should move the machine.  

To prevent accidents from occurring during transportation, wipe off the oil put on the

surface of the machine.

The machine may not work properly or break down depending on where it is installed. The
right place of installation should meet the following conditions: 

Remove the package and wrappings from the top in order. Take a special notice of the
nails on the wooden box.  

Dust and moisture stains and rusts the machine. Install air-conditioners and clean the
machine regularly.  

Keep the machine away from direct sunlight.  

Leave the left, right and rear sides of the machine at least 50cm away from the wall to
secure sufficient space for repair.

Explosion  
Do not use the machine in the atmospheres exposed to the danger of explosion. To avoid
explosion, do not operate this machine in a place where a large quantity of aerosol
products is used or where oxygen is stored, unless there are specific facilities installed to
prevent explosion.  

The machine does not provide lightings. End users should install them at their
workplace.  

[Note]See “4. Installation” for more details on machine installation.

When the machine needs to be repaired, only the designated A/S engineers, who were trained
by Sunstar, should repair the machine.  

Before cleaning or repairing the machine, turn off the machine and wait for 4 minutes till
the machine is completely discharged.  

The machine specifications and parts should not be altered without prior consultation with
Sunstar. This may pose danger to operation.   

When repairing, only the original spare parts produced by Sunstar should be used for
replacement.  

Put all safety covers back on the machine after repairing is complete.  

Содержание KM-341BL

Страница 1: ...R AT MOST USE WITH EASINESS PLEASE CERTAINLY READ THIS MANUAL BEFORE STARTING USE 2 KEEP THIS MANUAL IN SAFE PLACE FOR REFERENCE WHEN THE MACHINE BREAKS DOWN User s Manual KM 341BL High speed 1 Needle Lock Stitch Upper Lower Feed Sewing Machine M MM ME E 0 05 50 06 62 29 9 ...

Страница 2: ... functions high performance powerful operation enhanced durability and more sophisticated design to meet a number of user s needs 2 Please read this user s manual thoroughly before using the machine Make sure to properly use the machine to enjoy its full performance 3 The specifications of the machine are subject to change aimed to enhance product performance without prior notice 4 This product is...

Страница 3: ...1 4 8 Installation of Belt Cover 11 4 9 Thread Stand 12 4 10 Knee Lifting Pad 12 4 11 Oil Supply 12 4 12 Inserting Bobbin into Bobbin Case 13 4 13 Test Operation Pedal Operation 14 5 Basic Sewing Machine Adjustments 15 5 1 Needle Insertion 15 5 2 Adjusting Needle and Hook Timing 15 5 3 Adjusting Oil Supply to Hook 16 5 4 Adjusting Lower Thread Spinning 16 5 5 Adjusting Thread Tension 17 5 6 Adjust...

Страница 4: ... box ⓑ Dust and moisture stains and rusts the machine Install air conditioners and clean the machine regularly ⓒ Keep the machine away from direct sunlight ⓓ Leave the left right and rear sides of the machine at least 50cm away from the wall to secure sufficient space for repair ⓔ Explosion Do not use the machine in the atmospheres exposed to the danger of explosion To avoid explosion do not opera...

Страница 5: ...trol box Make sure that the power switch is OFF ⓖ Stop the machine when placing a thread or when checking swing materials ⓗ Do not turn on the machine when stepping on the pedal ⓘ If possible install the machine away from the place where powerful electromagnetic waves are generated such as high frequency welding machine 1 4 Operation Warning Caution Warning Make sure that the motor cover is closed...

Страница 6: ... operate without finger guard and safety devices Before threading changing bobbin and needle cleaning etc switch off main switch 손가락 보호대와 안전장치 없이 작동하지 마 십시오 실 보빈 바늘교환시나 청소전에는 반드시 주전원의 스위치를 꺼 주십시오 CAUTION 경 고 CAUTION 주 의 Do not operate without finger guard and safety devices Before threading changing bobbin and needle cleaning etc switch off main switch 손가락 보호대와 안전장치 없이 작동하지 마십시오 실 보빈 바늘교환시나 청소전에는 ...

Страница 7: ... 2 2 Entire Configuration Arm Bed Oil Fan Face Plate Top Cover Oil Window Presser Foot Knee Lifting Pad Power Switch Reverse Lever Stitch Dial Pulley Thread Stand Safety Devices Take up Cover Belt Cover ...

Страница 8: ...Presser Foot Lifting Hand Knee Max Fabric Thickness Max Thickness of Fabric End Feed Dog Height Application DP 17 23 DB 1 21 20 24 34 7 mm 71 5 mm 2 5 mm 8 mm 14 mm 8 mm 5 mm 1 1 2 mm Medium Heavy Materials High speed 1 Needle Lock Stitch Upper Lower Feed Sewing Machine with Vertical Large Hook MODEL KM 341BL ...

Страница 9: ... 1 Where to Install 1 Do not install the sewing machine next to television radio and wireless phones since they can cause noises to the sewing machine 2 Connect the power plug of the sewing machine directly to the AC outlet If a multi tap is used it may cause malfunction of the sewing machine 4 2 Machine Transportation 1 The body of the sewing machine shall be transported by two persons as in the ...

Страница 10: ...ox See Fig 6 when installing the power switch box and install it on the right bottom of the table Fig 6 4 5 Installation of Head Part Insert the hinge rubber into the table and insert the oil fan into the middle of the head supporting rubber B as in Fig 5 Insert the head hinge into the bed hole and install the machine above the head supporting rubber A and the head supporting rubber B while insert...

Страница 11: ...e groove of the belt cover A and fix the rear part using the screw 2 Attach the belt cover B to the table Make sure that the belt cover B does not interfere with the belt operation 4 7 Adjusting Belt Tension 1 When looking at the sewing machine from the pulley side it looks like it is spinning in the left side 2 To adjust the belt tension press the belt with a finger and when it is pushed down abo...

Страница 12: ...d running water When lubricant touches eyes rinse off lubricant in running water and go to hospital to see a doctor Do not swallow lubricant It may cause diarrhea and vomiting If you swallow lubricant immediately see a doctor Keep lubricant out of reach of children and youth Keep lubricant stored away from fire 4 11 Oil Supply When it is first time to operate the sewing machine or it is reuse of t...

Страница 13: ...in the figure below If the bobbin is inserted in the opposite direction it is spined loosely causing entanglement of lower thread 2 Insert the thread into the lower thread tension adjusting spring through the thread path and take out the thread through the thread hole 3 Set the output tension to the extent that when the bobbin case is dropped with the end of the thread held it falls gradually 4 Wh...

Страница 14: ...Fig 15 1 Move the pedal at the B position to see if you can conduct low speed sewing 2 Move the pedal at the C position to see if you can conduct high speed sewing 3 Step the pedal B or C position Stay your feet away from the pedal and place it at the Neutral A position Check whether the needle stops below the surface of the needle plate in case of setting up the lower stop position ...

Страница 15: ...nt at 0 5 1 5mm when the hook point is aligned with the middle of the needle Move the needle bar up or down to adjust the needle bar and fasten the screw Fig 18 5 2 Adjusting Needle and Hook Timing 1 Needle Bar Lifting Turn the pulley to place the needle 2 24mm above the lowest point In this case the hook point and the middle of the needle should be aligned Loosen the fixing screw and set the hook...

Страница 16: ...thread spinning shaft 2 Press the thread spinning lever 3 Spin five or six times by hand in the direction of thread spinning in the bobbin and operate the sewing machine 4 If the thread spinning does not take place horizontally loosen the thread guide screw and move the thread guide plate left or right for adjustment 5 When the thread is spun around the bobbin a lot loosen the adjusting screw When...

Страница 17: ...of the thread take up spring is 7 10mm The standard strength of the thread take up spring twist is 40 60g 2 When adjusting the scope of operation of the thread take up spring loosen the fixing screw for the thread take up and turn the thread adjusting device Adjust the scope of operation to be smaller for heavy materials and vice versa for light materials 3 Adjust strength of the thread take up sp...

Страница 18: ...screw left or right to make the sewing fabric held by the pressor foot Fasten the fixing nut Fig 24 5 9 Adjusting Stitch Length 1 Match the desired number on the stitch length dial with the pin above The bigger the figure becomes the bigger the stitch length becomes 2 Press the reverse lever by hand for reserve sewing This time the sewing fabric is fed in the opposite way When the reverse lever is...

Страница 19: ...ry Presser Feet The main presser foot and the auxiliary presser foot move up and down alternatively When the main presser foot and the auxiliary presser foot are at the highest position respectively their heights should be same or the height of the auxiliary presser foot should be a bit lower Place the thread take up at the lowest position and pull down the presser bar lift Loosen the screw and ad...

Страница 20: ...2 5mm 3 Adjusting Front Rear Location of Main Presser Foot Set the stitch length at the maximum figure and loose the screw to the extent that the rear side of the auxiliary presser foot is not contacted with the main presser foot Move the horizontal movement adjusting crank for the presser foot left or right for adjustment Fig 29 Gap 4 Adjusting Feed of Main Presser Foot The standard ratio of the ...

Страница 21: ...tension is too strong The lower thread tension is too strong The movement range is too wide The upper and lower thread tension is improper The tread take up spring tension is improper The gap between opener and hook is improper The needle position is wrong A needle is crooked The end of the needle is broken How to place thread is wrong The timing of thread and hook is improper Because the needle s...

Страница 22: ...22 7 7 Table Drawing ...

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