Brother International DA-9270 Instruction Manual - English
Brother International DA-9270 Manual
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- Brother International DA-9270 | Instruction Manual - English - Page 1
DA-9270 INSTRUCTION MANUAL Please read this manual before using the machine. Please keep this manual within easy reach for quick reference. TWIN NEEDLE (THREE NEEDLE) FEED OFF THE ARM DOUBLE CHAIN STITCHER - Brother International DA-9270 | Instruction Manual - English - Page 2
BROTHER sewing machine. Before using your new machine, please read the safety instructions below and the explanations given in the instruction manual. With industrial sewing machines, it is normal to carry out work while positioned directly in front of moving parts the reach of children. i DA-9270 - Brother International DA-9270 | Instruction Manual - English - Page 3
correctly before using the machine. ¡Any problems in machine operation which result from unauthorized modifications to the machine will not be covered by the warranty. ¡ When carrying out inspection, adjustment and maintenance ¡ When replacing consumable parts such as the looper DA-9270 ii - Brother International DA-9270 | Instruction Manual - English - Page 4
on the sewing machine. Please follow the instructions on the labels at all times when using the machine. If the labels have been removed or are difficult to read, please contact your nearest Brother dealer. guard w Thread take-up cover e Pulley cover, etc. 1 3 w e q 2 iii DA-9270 - Brother International DA-9270 | Instruction Manual - English - Page 5
Threading the upper threads 09 6. SEWING 10 6-1. Sewing 10 7. THREAD TENSION 11 7-1. take-up thread guide adjustment 19 9-7. Upper thread arm thread guide adjustment 19 9-8. Machines with puller 20 9-12. Puller device timing adjustment (Machines with puller 20 10.TROUBLESHOOTING 21 DA-9270 - Brother International DA-9270 | Instruction Manual - English - Page 6
PARTS 2. MACHINE SPECIFICATIONS 1. NAMES OF MAJOR PARTS t q u o q Machine pulley w Front cover e Presser r Needle bar t Upper thread arm guide y Lapper Safety device u Thread take-up cover i Finger guard o Pulley cover r e i y w 2. MACHINE SPECIFICATIONS BROTHER INDUSTRIES, LTD. DA-9270 - Brother International DA-9270 | Instruction Manual - English - Page 7
correct motor from those listed in the above table. ¡ Refer to the instruction manual for the motor for details on in- stalling and using the motor. 43.../ ,....M.44.../ Sewing speed (rpm) 50Hz 60Hz 3100 3100 3600 3600 4000 4000 Motor 2-pole, 400 W motor 2-pole, 400 W motor DA-9270 2 - Brother International DA-9270 | Instruction Manual - English - Page 8
installed by a qualified technician. ¡ Ask your Brother dealer or a qualified electrician for any electrical work that may need to be done. ¡ The sewing machine weighs more than 49 kg. The installation should it is not parallel, the pulley cover may touch the machine pulley.) w r e w 3 DA-9270 - Brother International DA-9270 | Instruction Manual - English - Page 9
the sewing machine head with screw w and washer e. (The attachment location is indicated by a ground symbol r.) 3. Pass the ground wire q through the hole in the table. 4. Connect the ground wire q to the motor in accordance with the instructions in the instruction manual for the motor. DA-9270 4 - Brother International DA-9270 | Instruction Manual - English - Page 10
r t e t y u e w o i 1. Place the belt w onto the machine pulley q. * Pull the belt w upward when installing pulley cover A e. 2. Place pulley A e with the three screws u. 4. If the machine is being used with the puller attached, install the puller belt cover i with the two screws o. 5 DA-9270 - Brother International DA-9270 | Instruction Manual - English - Page 11
deflection in the V-belt e when it is pressed at the midway point with a force of 9.8 N. 1. Assemble the cotton stand while referring to the cotton stand instruction manual. 2. Install the cotton stand to the cotton stand mounting hole in the work table with the nut q. q DA-9270 6 - Brother International DA-9270 | Instruction Manual - English - Page 12
machine should always be lubricated and the oil supply replenished before it is used for the first time, and also after long periods of non-use. 5 Use only the lubricating oil (Nisseki Mitsubishi Sewing Lube 15N; VG15) specified by Brother is completed, tighten the cover screws !1. 7 DA-9270 - Brother International DA-9270 | Instruction Manual - English - Page 13
instruction manual for the motor. * For the first 3 - 4 days of use, run the machine at 500 rpm lower than the usual speed. This will help contribute to a longer service life for the machine. 5. PREPARATION BEFORE SEWING way, and fasten the needle with needle q set screws w. w e DA-9270 8 - Brother International DA-9270 | Instruction Manual - English - Page 14
off the power switch before threading the upper thread, otherwise the machine may operate if the treadle is pressed by mistake, which could result in injury. Pass the upper threads as shown in the figure below. 4 5 6 45 6 6 5 4 1 2 3 50 - 60mm 6 5 4 4 5 6 12 3 6 4 5 1 2 3 9 DA-9270 - Brother International DA-9270 | Instruction Manual - English - Page 15
presser lifter pedal q and place the work un- der the presser foot. 3. Release the presser lifter pedal. 4. The machine starts running when treadle w is stepped down. q w e 5. After sewing the work, move the work to thread cutter e to make blank stitches, and cut the thread with it. DA-9270 10 - Brother International DA-9270 | Instruction Manual - English - Page 16
pressure by turning presser adjusting screw q so that the pressure is just enough to feed the work positively and keep the work from slipping. * In case of Machines with puller the puller pressure can be adjusted as appropriate to the work by turning presser adjusting screw w. 11 DA-9270 - Brother International DA-9270 | Instruction Manual - English - Page 17
cover e. NOTE: Do not press the feed adjustment button q while the machine is operating, as doing so may damage the machine parts. When sewing with the stitch length set close to the maximum length, you will need to seeing the finished stitches of the work (Refer to page 13). Larger DA-9270 12 - Brother International DA-9270 | Instruction Manual - English - Page 18
with low elasticity Correct Feed direction Feed direction Neither non-alignment nor sewing wrinkles. Neither non-alignment nor sewing wrinkles. Insufficient Non-aligned, and wrinkled. Non-aligned, and wrinkled. Excessive Non-aligned, and very wavy. Non-aligned, and very wavy. 13 DA-9270 - Brother International DA-9270 | Instruction Manual - English - Page 19
machine and to ensure a long service out a trial sewing. 8-2. Changing machine into the oil bottle e. 3. Fill the machine with oil until the oil level reaches the top reference line on the oil gauge. (Refer to page 7.) 4. Close the puller top cover t and secure it with the eight screws r. DA-9270 - Brother International DA-9270 | Instruction Manual - English - Page 20
inspection of the sewing machine should only be carried out by qualified personnel. ¡ Ask your Brother dealer or a ¡ When carrying out inspection, adjustment and maintenance ¡ When replacing consumable parts such as the looper ¡ If the power switch needs to be with the screw o. 15 DA-9270 - Brother International DA-9270 | Instruction Manual - English - Page 21
cover plate r, and then tighten the two screws e. 10. Install the presser foot, needle plate and feed dogs. o 2.1 - 2.3mm i Looper forward travel Looper backward travel DA-9270 16 - Brother International DA-9270 | Instruction Manual - English - Page 22
the loopers breaking. 1. Adjust the stitch length to the minimum setting. (Refer to page 12.) 2. Turn the machine pulley toward yourself to align the loopers with the centers of the needles. 3. Loosen the set screw e, and then the stitch length is adjusted to the actual stitch length. 17 DA-9270 - Brother International DA-9270 | Instruction Manual - English - Page 23
when feed dog q is at the highest position. Adjust the height of feed dog q by turning feed bar eccentric shaft w. 0.8mm w Feed dog Needle plate DA-9270 18 - Brother International DA-9270 | Instruction Manual - English - Page 24
upper thread loops. 1. Loosen the screw q, and then adjust so that the upper thread arm thread guide w is nearly horizontal. 2. After the adjustment, retighten the screw q. w q 9-8. Thread release shaft take-up base e. 3. After the adjustment, retighten two set screws r securely. 19 DA-9270 - Brother International DA-9270 | Instruction Manual - English - Page 25
lapper guide plate high from the top of the needle plate. Loosen set screw w, and move puller support e up or down until puller q is 0.4 to 0.5 mm above the top of w. w e q 0.4 - 0.5mm 9-12. Puller timing adjustment (Machines with puller) Make an adjust so that, when the needle bar is DA-9270 20 - Brother International DA-9270 | Instruction Manual - English - Page 26
10. TROUBLESHOOTING 10. TROUBLESHOOTING ¡ Please check the following points before calling for repairs or service. ¡ If the following suggestions do not solve the problem, turn off the machine power supply and contact your nearest Brother service center. CAUTION ¡ Turn off the power supply before - Brother International DA-9270 | Instruction Manual - English - Page 27
Problem 6. Broken needles 10. TROUBLESHOOTING Possible cause ¡ Is the material being pushed or pulled with excessive force during sewing? ¡ Is the needle properly installed? If it is incorrect, install the such needles to comply with product liability regulations. Page - 8 8 17 18 8 DA-9270 22 - Brother International DA-9270 | Instruction Manual - English - Page 28
INSTRUCTION MANUAL BROTHER INDUSTRIES, LTD. 15-1, Naeshiro-cho, Mizuho-ku, Nagoya 467-8561, Japan. Phone: 81-52-824-2177 Printed in Japan 118-927 S92927-102 2002.03. B (1)
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DA-9270
Please read this manual before using the machine.
Please keep this manual within easy reach for quick reference.
TWIN NEEDLE (THREE NEEDLE) FEED OFF THE ARM
DOUBLE CHAIN STITCHER
INSTRUCTION MANUAL