JUKI ACF-172-1790 Instruction Manual
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JUKI ACF-172-1790 Instruction Manual

JUKI ACF-172-1790 Instruction Manual

1-needle,lockstitch, automatic buttonholing machine
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Download this manual See also: Engineer's Manual, Instruction Manual
1-Needle,Lockstitch,
Automatic buttonholing Machine
ACF-172-1790
INSTRUCTION MANUAL
NOTE :
Read safety instructions carefully and understand them before using.
Retain this Instruction Manual for future reference.
(MACHINE OPERATION)
iii

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Summary of Contents for JUKI ACF-172-1790

  • Page 1 1-Needle,Lockstitch, Automatic buttonholing Machine ACF-172-1790 INSTRUCTION MANUAL (MACHINE OPERATION) NOTE : Read safety instructions carefully and understand them before using. Retain this Instruction Manual for future reference.

  • Page 2: Table Of Contents

    CONTENTS 1.GENERAL ......................... 1 1-1. Features ..............................1 1-2. Configuration of the main parts ......................2 1-3. Operating precautions ......................... 3 2. SPECIFICATIONS ......................3 3. INSTALLTION ........................4 3-1. Installing the device ..........................4 3-2. Installing the thread stand ........................4 3-3.
  • Page 3 6. MAINTENACE........................ 24 6-1. Adjusting the needle-to-hook relation ..................... 24 6-2. Adjusting the needle thread trimmer ....................25 6-3. Adjusting the presser bar pressure ....................26 6-4. Adjustment of the bobbin presser unit .................... 26 6-5. Thread tension ........................... 27 6-6.

  • Page 4: General

    1. GENERAL Mainly consisting of a sewing machine, preset board, carriage, stacker, the ACF-172-1791RS indexer is designed to automatically carry out a series of operations starting sewing button on the front top-center strips of men’s shirts, etc. and ending with stacking of workpieces. 1-1 Features...

  • Page 5: Configuration Of The Main Parts

    1-2.Configuration of the main parts !3 Cloth palate 1 Sewing machine head 7 Knee switch !4 Handle of the cloth plate 2 Preset board 8 Pause switch !5 Tool box 3 Carriage 9 Hand switch !0 Workpiece detector switch !6 Thread stand 4 Stacker !1 Air gun !7 Filter box...

  • Page 6: Operating Precautions

    : Max. 25 mm X sewing width 4 mm 4 Size (knife size) : 6.4 to 19.1 mm (1/4 to 3/4”) 5 Needle : DPx5 #11J to #14J 6 Lubricating oil : JUKI New Defrix Oil No.1 7 Number of stitches : 0.2 to 2.5...

  • Page 7: Installtion

    3. INSTALLTION 3-1. Installing the device 1) Securely fix the device in place moving brakes 1 of the four outsize casters provided with a brakes 1 of the four out side casters provided with a break in the direction of the arrow. 2) If the floor on which the device is to be installed is not flat and smooth, loosen nuts 2 adjust the height of the device properly and firmly tighten the...

  • Page 8: Installing The Air Hose

    3-4. Installing the air hose 1) Insert air hose 1 into one-touch joint 2 supplied with this unit, and fix it using metal fittings or the like. 2) Insert one-touch joint 2 into joint 3 until it clicks. 3) Set the air pressure gauge to 0.5 MPa. To adjust, raise knob 5 of regulator 4 in direction A, and turn knob 5 clockwise (direction C) to increase the air pressure, or turn the knob counter-clockwise...

  • Page 9: Installing The Cloth Plate

    3-6. Installing the cloth plate 1) Loosen handle 1 of the cloth pate. Then bring cloth prate 2 to the desired position, and tighten handle 1. Tighten Loosen 2) The cloth plate can be installed either the right-or left-hand side of the unit. Loosen handle 1, and draw out cloth plate 2.Remove two screw 3, move cloth plate support bar 4 to the position shown in the figure and tighten screws 3.

  • Page 10: Installing The Machine Head

    3-7. Installing the machine head (1) Lubrioation WARNING : To protect against possible personal injury due to abrupt start of the machine, be sure to start the following work after turning the power off and ascertaining that the motor is at rest. Detailed diagram of oil amount adjusting section Oil pipe Decrease...

  • Page 11: Operation And Adjustment

    4. OPERATION AND ADJUSTMENT WARNING: Turn OFF the power before staring the work so as to prevent accidents caused by abrupt start of the 4-1. Operating switches and adjusting pneumatic components Hand switch Workpiece detector switch Speed controller of the blower for the carriage Speedcontroller of...

  • Page 12: Knee Switch

    (3) Knee switch The height of the switch can be adjusted in the three stages. (It has been factory-adjusted to the middle stage at the time of delivery.) Loosen two screws 1 in the reverse side of the knee switch, and fix the switch at a height where you can operate it with ease.

  • Page 13: Workpiece Detector Switch

    (5) Workpiece detector switch This switch prevents a malfunction when there is no workpiece set on the machine. If either one of two detector switches 1 detects a workpiece, the machine is actuated. Take care not to place anything other than the sewing products or hands on detector switches 1.

  • Page 14: Adjusting The Air Blower

    (7) Adjusting the air blower 1) The air blower is provided with four blow pipes as illustrated in the figure on the left. The soled arrows show the air blowing direction of the respective pipes. The name and function of each components is as follows: 1 Blower for the To be used for...
  • Page 15 4) Turn knob 1 of the speed controller in the direction of the arrow to increase the amount of air to be blown. After the adjustment, fix the knob at the adjusted position using locknut 2. Adjusting the amount of air to be blow while the machine is in operation is very dangerous.
  • Page 16 7) Adjusting the air blower for the needle bar When dust collected on the needle bar area falls and is caught in the seams, adjust the direction and strength of the air blower.The air blower blows dust away and prevents dust from falling under needle.

  • Page 17: Vacuum Adjusting Metal Fittings

    (8) Vacuum adjusting metal fittings They are used to adjust the vacuum suction force of the preset board for sucking the workpiece. Adjustment is carried out by turning metal fitting 1. For the normal operation, 2 in the metal fitting should not be closed.

  • Page 18: Inserting The Needle

    4-2. Operation of the sewing machine (1) Inserting the needle WARNING : To protect against possible personal injury due to abrupt start of the machine, be sure to start the following work after turning the power off and ascertaining that the motor is at rest. Hold needle with its recessed part facing toward the operator side A, insert the needle fully into the needle clamping hole, and tighten needle setscrew 1.

  • Page 19: Threading The Bobbin Case

    (3) Threading the bobbin case Purl stitch Whip stitch Bobbin case Bobbin Rotating direction of bobbin and threading 1) Fit the bobbin so that it rotates in the direction of the arrow. 2) Pass the thread through thread slit 1, then through under the tension spring 2, again through thread slit 3, and pull the thread from 4.

  • Page 20: Installation Of Bobbin Case

    (5) Installation of bobbin case WARNING : To protect against possible personal injury due to abrupt start of the machine, be sure to start the following work after turning the power off and ascertaining that the motor is at rest. 1) Lift up and hold bobbin case latch lever between two fingers.

  • Page 21: Remove And Installing The Bobbin Case

    (7) Remove and installing the bobbin case 1) When the bobbin thread counter is set and the operation is performed automatically, and bobbin thread runs out, the next start is not performed. In this state, carriage table 1 is tilted in the direction of A, and it is simply performed to replace the bobbin.

  • Page 22: Adjusting The Seam Allowance

    4-3. Adjusting the seam allowance WARNING : Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the sewing machine. 1) Adjust the seam allowance from the side end of the garment to the buttonhole (distance A in the figure), and from the top end the garment to the buttonhole (distance B, B’...

  • Page 23: Adjusting The Carriage Lamp

    4-4. Adjusting the carriage lamp WARING: Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the sewing machine. (1) Adjusting the position of the clamps Adjust the position of the clamp only when you wish to eliminate a clearance between the clamps or you wish change the arrangement of the clamp.

  • Page 24: Adjusting The Stacking Board Of The Stacker

    4-5. Adjusting the stacking board of the stacker WARNING: Turn OFF the power before starting the work so as to prevent accidents caused by abrupt start of the sewing machine. If sewing garment bodies with pockets, adjust the stacking board following the steps, adjust the stacking board following the steps described below.

  • Page 25: Operation

    5. OPERATION 1 Power switch 2 Control panel 3 Knee switch 4 Hand switch 5 Workpiece suction lamp 6 Temporary stop switch 7 Machine head pause switch WARNING: 1. The machine can be started in two different methods ; A and B modes, by changing over the memory switch data (Refer to "2-17.
  • Page 26 When the switch is pressed, the following series of operation will be performed automatically [Series of the operation for men’s wear] Start Buttonhole Index in the right direction The preset board moves forward and sewing (the carriage moves) feeds the material on the carriage. Stacking The conveyer returns to its Buttonhole...

  • Page 27: Maintenace

    6. MAINTENACE 6-1. Adjusting the needle-to-hook relation WARNING : To protect against possible personal injury due to abrupt start of the machine, be sure to start the following work after turning the power off and ascertaining that the motor is at rest. Perform adjusting the needle-to-hook relation when the needle enters the center of the needle hole in the throat plate.

  • Page 28: Adjusting The Needle Thread Trimmer

    6-2. Adjusting the needle thread trimmer WARNING : To protect against possible personal injury due to abrupt start of the machine, be sure to start the following work after turning the power off and ascertaining that the motor is at rest. (1) Adjusting the thread grasping force of the needle thread trimmer If the needle thread trimmer fails to provide...

  • Page 29: Adjusting The Presser Bar Pressure

    6-3. Adjusting the presser bar pressure WARNING : To protect against possible personal injury due to abrupt start of the machine, be sure to start the following work after turning the power off and ascertaining that the motor is at rest. To adjust the pressure applied by the presser bar to fabric, turn presser spring regulator .

  • Page 30: Thread Tension

    6-5. Thread tension (1) Thread take-up spring (purl stitch) 1) The thread take-up amount of thread take-up spring 1 is 8 to 10 mm, and the appropriate pressure at the start is approximately 0.06 to 0.1N. 2) To change the stroke of the thread take-up spring, loosen screw 2, insert a thin screwdriver into the slot of thread tension post 3, and turn it.

  • Page 31: Removing Dust Near The Bobbin Case

    6-6. Removing dust near the bobbin case Hold knob 2 and open hook cover 1. Then remove dust (thread waste and cloth waste) near bobbin case If dust collects near the bobbin case, sewing is deteriorated. 6-7. Cleaning the cooling filter WARNING : To protect against possible personal injury due to abrupt start of the machine, be sure to start the following work after turning the power off and ascertaining that the motor is at rest.

  • Page 32: Cleaning The Vacuum Filter

    6-8. Cleaning the vacuum filter Clean the filter element inside the filter box once every 4 months. 1. Blow air to the elements from inside toward out side. 2. If the is heavily clogged, replace it with a new one. Filter 6-9.

  • Page 33: Replacing The Clamp Cushion

    6-10. Replacing the clamp cushion If the clamp cushion of the carriage has worn out or deformed, replace it with anew one in the following steps of procedure. 1) Remove worn out cushion from clamp 1 ,and wipe the clamp surface cleanly. Flush 2) Attach chshion 2 supplied with the machine on clamp 1 so that the cushion is positioned illustrated...

  • Page 34: Replacing The Fuse

    6-12. Replacing the fuse WARNING : 1. To avoid electrical shock hazards, turn OFF the power and open the control box cover after about five minutes have passed. 2. Open the control box cover after turning OFF the power without fail. Then, replace with a new fuse with the specified capacity.

  • Page 35: Gauge Components

    7. GAUGE COMPONENTS (1) Cloth cutting knife 12.7 1/2 L A Knife size (inch) B Knife size (mm) C Mark D Part No. B2702047F00 B2702047K00A 7/16 11.1 B2702047I00 12.7 B2702047L00A 9/16 14.3 B2702047V00 15.9 B2702047M00A 11/16 17.5 B2702047A00 19.1 B2702047N00 22.2 B2702047P00 25.4...
  • Page 36 (4) 120 mm work clamp (5 X 120 mm) Part No. Name of part Q'ty 40006335 Work clamp arm 120 40008645 Work clamp foot (asm.) 120 40008658 Work clamp 120 SS6060210SP Work clamp setscrew 120 SD0790203SP Work clamp foot hinge screw 120 40006341 UTT close cam 120 40006342...
  • Page 37 Setting when 120 mm work clamp (presser) is used 1) The max. sewing length from the origin of the carriage is 25 mm. When performing sewing beyond 25 mm, input the jump feed at the start of sewing. For the input of the jump feed, refer to "1-3-1. ACF data input screen"...

  • Page 38: Troubles And Corrective Measures

    8. TROUBLES AND CORRECTIVE MEASURES Page Troubles Causes Corrective measures PANEL 1. Needle thread breakage 1. Thread tension at parallel section is too Decrease the thread tension at parallel OPERATION high. section. MACHINE 2. Pressure or stroke of thread take-up spring Decrease the tension of thread take- OPERATION is too large.
  • Page 39 Troubles Causes Corrective measures Page 7. Stitch skipping 1. Button hole is small in terms of the size of Replace the presser with a smaller presser. one. MACHINE 2. Material flops because of light-weight. Delay the hook-to-needle timing. OPERATION (Lower the needle bar by 0.5 mm.) 3.

  • Page 40: Initial Value Data For Each Shape Table

    9. INITIAL VALUE DATA FOR EACH SHAPE TABLE Item Unit Shape selection Level 3 (30 shapes) Shape selection Level 2 (20 shapes) Shape selection Level 1 (12 shapes) Sewing shape Cloth cutting length 12.7 12.7 12.7 12.7 12.7 12.7 12.7 12.7 12.7 12.7...

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