Brother International LS2-F52A Instruction Manual - English
Brother International LS2-F52A Manual
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- Brother International LS2-F52A | Instruction Manual - English - Page 1
LS2-F52A INSTRUCTION MANUAL Please read this manual before using the machine. Please keep this manual within easy reach for quick reference. SINGLE NEEDLE UNISON FEED LOCK STITCHER WITH VERTICAL LARGE HOOK AND REVERSE STITCHING - Brother International LS2-F52A | Instruction Manual - English - Page 2
the machine pulley rotating direction 5. PREPARATION BEFORE SEWING 5-1. foot movement amount 8-12. Adjusting the timing of the vibrating presser foot 9. SAFETY CLUTCH MECHANISM 1 1 2 3 3 3 3 4 4 5 5 6 6 7 8 9 99 10 10 11 11 12 12 12 13 13 13 14 14 15 15 16 17 17 18 19 20 20 21 22 23 LS2-F52A - Brother International LS2-F52A | Instruction Manual - English - Page 3
Bobbin winder Safety clutch mechanism e O 2. SPECIFICATIONS Use Sewing speed Presser foot height Max. stitch length Feed dog height Needles Presser bar lifter knee lifter Medium-thick materials - very thick materials 2,200 spm 8.5 mm 14 mm 10 mm 1 mm DP X 17 1 LS2-F52A - Brother International LS2-F52A | Instruction Manual - English - Page 4
vibration of the sewing machine. Work table mm away from ® any moving parts. Furthermore, do not excessively • Refer to the instruction manual for the motor for de Sewing speed 2,000 spm Frequency 50 Hz 60 Hz Motor pulley Motor pulley 55 Motor pulley 50 V-belt 42 inches 42 inches -2 LS2-F52A - Brother International LS2-F52A | Instruction Manual - English - Page 5
4. INSTALLATION 4. INSTALLATION A CAU®TIO• N • The sewing machine should only be in- ® stalled by a qualified technician. Do not connect the power cord until installation is complete, otherwise the machine • Ask your Brother dealer or a qualified electrician for any electrical work that may need - Brother International LS2-F52A | Instruction Manual - English - Page 6
r-* processing diagram on page 2.) 3. Adjust the knee lifter. 1) Lower the presser foot 0 by using the presser bar lifter 0. _ oq, 2mm 7 1 2) Loosen bolts tighten bolts 0, Q and 0. 5) Press the knee pad 0 to raise the presser foot O by 14 mm; then move the knee lifter stop- ®, per 0 in the - Brother International LS2-F52A | Instruction Manual - English - Page 7
the screw 0 and remove the belt guard upper cover 0. 2. Tilt back the machine head, and then place the belt 0 onto the motor pulley and the machine pulley. 3. Turn the nut 0 to adjust so that there is 15-20 mm mm of clearance between the bobbin winder pulley 0 and the belt 0. 5mm e O 5 LS2-F52A - Brother International LS2-F52A | Instruction Manual - English - Page 8
head, and then remove the V-belt from the motor pulley. 2. While tilting the machine forward, insert belt guard (L) 0 into the belt guard 0 from underneath, and let it rest there. 3. Place the V-belt back * Securely tighten the nut 0 so that the thread stand does not move. si 4.4 6 - LS2-F52A - Brother International LS2-F52A | Instruction Manual - English - Page 9
(Nisseki Sewing Lube 10) specified by Brother. • Add 1-2 drops of oil in the places indicated by the arrows. Add oil to other sliding parts also, while being careful to avoid oil leaks. • Oiling must be done at least twice daily in continuous use. FIT ) I L, 0 O 0 ( ) OF 6 \CD 0 7 LS2-F52A - Brother International LS2-F52A | Instruction Manual - English - Page 10
. 2. Depress the treadle and check that the direction of rotation of the machine pulley matches the direction of the arrow 0. If the direction of rotation is reversed, change the direction of rotation to the correct direction while referring to the instruction manual for the motor. 8 - LS2-F52A - Brother International LS2-F52A | Instruction Manual - English - Page 11
. 2. Turn the machine pulley by hand, and stop turning it when the " 0 " mark becomes visible in the window of the belt guard. 3. Pull the latch 0 of the bobbin case upward and then remove the bobbin case. 4. The bobbin 0 will come out when the latch 0 is released. a er(ID% •Z. 4,9 2 9 LS2-F52A - Brother International LS2-F52A | Instruction Manual - English - Page 12
SEWING 5-3. Winding the lower thread A CAUTION • Do not touch any of the moving parts or place any objects against the machine while winding the lower thread, as this may result in personal injury or damage to the machine the bobbin case into the rotary hook. 6. Close the bed slide. - 10 - LS2-F52A - Brother International LS2-F52A | Instruction Manual - English - Page 13
injury. Turn the machine pulley and raise the thread take up lever 0 before threading the upper thread. This will make threading easier and it will prevent the thread from coming out at the sewing start. 06e 0 0 should be set at just above, while depressing the revers lever 0 slightly. 0 LS2-F52A - Brother International LS2-F52A | Instruction Manual - English - Page 14
needle and bobbin • When not using the machine and when leaving the machine unattended 11,• Do not touch any of the moving parts or place any objects against the machine while sewing, as this may result personal injury or damage to the machine. 6-1. Sewing 1. While holding the upper thread with - Brother International LS2-F52A | Instruction Manual - English - Page 15
the motor stops fully before starting work. The machine may operate if the treadle is pressed by foot pressure Adjust the presser foot pressure to lower as much as possible so that the presser foot can properly hold down material by turning the screw O. More pressure Less pressure -13- LS2-F52A - Brother International LS2-F52A | Instruction Manual - English - Page 16
and inspection of the sewing machine should only be carried out by qualified personnel. 0 • Ask your Brother dealer or a When carrying out inspection, adjustment and maintenance • When replacing consumable parts such as the rotary hook • If the power switch needs to and screw Q. - 14 - LS2-F52A - Brother International LS2-F52A | Instruction Manual - English - Page 17
needle plate 0 is normally 1 mm. To ad- just the height of the feed dog: i 1.0mm 1. Tilt the machine head away from you. Turn the pulley to raise the feed dog 0 to its highest posi- tion. 2. Loosen the feed dog 0. 5. Securely tighten the screw O. 0 fm CD 0 0 .....---"" } -15- LS2-F52A - Brother International LS2-F52A | Instruction Manual - English - Page 18
it as may be required to get the correct position to the feeder. 3. Tighten the screw 0 and close the cover. CZD CD 6 0 0 0 Feed dog -16- LS2-F52A - Brother International LS2-F52A | Instruction Manual - English - Page 19
arrow mark 0 of the cam 0 on the V ditch Q of arm shaft. 4. Turn the machine pulley to the needle at 1 mm up from its lowest point. 5. And, pushing the reverse lever distances are given as a guide ; they should be checked again when adjusting timing between the needle and the hook. - 17 - LS2-F52A - Brother International LS2-F52A | Instruction Manual - English - Page 20
bar height, set stitch length to minimum, turn the machine pulley toward you until the needle bar reaches its lowest point needle. 3. Tighten the three set screws Q and re-check the timing of the sewing hook. ■ Adjusting the clearance 1. Loosen the two screws Q slightly. 2. Move -18- LS2-F52A - Brother International LS2-F52A | Instruction Manual - English - Page 21
the left as may be required. The standard clearance between the two parts is 0.7-0.9mm. 3. Tighten the screw 0 securely. II Position of the V ditch of the hook shaft. IN Adjustment of operation: 1. Turn the machine pulley until the opener 0 presses the projection of hook 0 extremely on its LS2-F52A - Brother International LS2-F52A | Instruction Manual - English - Page 22
the machine pulley foot is changed, the movement amount of the lifting presser foot Q and vibrating presser foot Q will change. Adjust the amount of movement of the vibrating presser foot Q so that it matches the movement of the lifting presser foot O. (Refer to page 21.) O O O O - 20 - LS2-F52A - Brother International LS2-F52A | Instruction Manual - English - Page 23
0 and lower the presser bar lifter 0. 2. While holding the vibrating presser foot 0, loosen the bolt 0 and then move the presser foot 0 up or down as necessary. 3. After positioning the vibrating presser foot 0, tighten the bolt 0. 4. Tighten the vibrating presser bar screw 0. - 21 - LS2-F52A - Brother International LS2-F52A | Instruction Manual - English - Page 24
> iI I ,\ lifting presser foot\__A \ "- vibrating presser foot Needle Feed dog 0 If the timing is not correct after you make these adjustments: 1. Loosen the two screws 0. 2. To synchronize the timing of the vibrating presser foot, turn the cam O. 3. Tighten the screws 0. o 0o - 22- LS2-F52A - Brother International LS2-F52A | Instruction Manual - English - Page 25
SAFETY CLUCH MECHANISM If the thread is tangled with the rotary hook during sewing, the safety clutch mechanism for the safety clutch pulley operates to stop the of adjustment, depress the button 0. At the same time, turn the machine pulley until the safety clutch re-engages. - 23 - LS2-F52A - Brother International LS2-F52A | Instruction Manual - English - Page 26
INSTRUCTION MANUAL BROTHER INDUSTRIES,LTD. NAGOYA,JAPAN Printed in Japan F52A S9152A-002 1996.03H@
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LS2-F52A
INSTRUCTION
MANUAL
Please
read
this
manual
before
using
the
machine.
Please
keep
this
manual
within
easy
reach
for
quick
reference.
SINGLE
NEEDLE
UNISON
FEED
LOCK
STITCHER
WITH
VERTICAL
LARGE
HOOK
AND
REVERSE
STITCHING