Reliable 3500SD Instruction Manual And Parts Book
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Reliable 3500SD Instruction Manual And Parts Book

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3500SD
INDUSTRIAL SEWING MACHINES
INSTRUCTION MANUAL AND PARTS BOOK

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Summary of Contents for Reliable 3500SD

  • Page 1 3500SD INDUSTRIAL SEWING MACHINES INSTRUCTION MANUAL AND PARTS BOOK...
  • Page 3 In this manual, you’ll find instructions on how to use and prepare your machine. To watch the videos for 3500SD, please visit www.youtube.com/@ReliableCorporation for a complete video playlist.

  • Page 4: Table Of Contents

    CONTENTS Attention before operation Caution in using Lubrication Adjusting oil flow for the rotating hook Mounting the needle Loading the bobbin Threading the needle Winding the bobbin thread Lifting of presser foot Adjusting the stitch length Built-in LED light Adjusting the presser foot pressure Adjusting the tension of stitch thread Adjusting the take-up spring Operating the treadle...

  • Page 5: Attention Before Operation

    1. Before you put the machine into operation for the first time after the set-up, clean it thoroughly. 2. Though every machine is strictly inspected and tested before leaving Reliable, the machine parts may be loose or after long distance transportation due to jolt. A thorough examination must be performed after cleaning the machine.

  • Page 6: Lubrication

    3. Lubrication 1. Fill oil pan (1) with machine oil up to HIGH mark (A). 2. When the oil level drops below the LOW mark (B), refill the oil pan with the specified oil. 3. When you operate the machine after lubrication, you will see splashing oil through the sight window (2).

  • Page 7: Mounting The Needle

    5. Mounting the needle 1. Turn the hand wheel counterclockwise until the needle stops at its maximum height. 2. Loosen needle screw (2) using a screwdriver provided with the machine. 3. lnsert the needle (1) into the bottom of needle bar in direction of arrow till it reaches the end point.

  • Page 8: Threading The Needle

    7. Threading the needle Raise the needle bar so it stays at its highest position and lead the thread from the thread stand in the order as shown in the figure.

  • Page 9: Winding The Bobbin Thread

    8. Winding the bobbin Bobbin thread winding-up method 1. Insert bobbin (1) onto the bobbin winder post (2). 2. Feed the thread through the tension assembly. Wind the thread onto the bobbin clockwise for several turns. 3. Push winding lever (3) into the bobbin. The bobbin (1) is rotated in direction C and thread is reeled onto bobbin (1).

  • Page 10: Adjusting The Stitch Length

    10. Adjusting the stitch length Press locking lever (2) to rotate the stitch dial (1). Rotate stitch dial (2) counter-clockwise for a larger stitch and rotate the stitch dial clockwise for a smaller stitch, as per the digits marked on the stitch dial. Pushing down on the reverse lever (3) will make it easier to change the stitch length.

  • Page 11: Adjusting The Tension Of Stitch Thread

    13. Adjusting the tension of stitch thread 1) Adjusting the tension of bobbin thread 1. Hold the bobbin case and use the adjusting large rotating screw (1) to regulate. 2. Turn the screw in clockwise direction (A) to increase the tension. Turn (1) screw in counterclockwise direction (B) to decrease the tension.

  • Page 12: Adjusting The Take-Up Spring

    14. Adjusting the take-up spring The take-up spring The tension of keeps on take-up spring is too functioning till the high, so needle thread end. draws out of place B in process of the action. 1. Loosen screw (2) and remove the check-spring assembly (5). 2.

  • Page 13: Adjusting The Height Of The Needle Bar

    16. Adjusting the height of the needle bar 1. Turn the machine hand wheel to set the needle bar (1) to its lowest position. 2. Remove the rubber cap (2) from the face plate. 3. Loosen the needle bar locking screw (3) of needle bar, through moving the needle bar (1) up and down to adjust, when using needle DBx1, the mark A on the needle bar (1) should match to the bottom of needle bar lower bushing.

  • Page 14: Programming

    Programming 3500SD Safety Precautions Please read the operation manual and related sewing machine datasheet carefully for correct use. 1. Power voltage and frequency: please refer to motor and control box nameplate. 2. Interference from electromagnetic wave: please keep far away strong magnetic or high radiation environment in order to avoid obstructions and make to misoperation.
  • Page 15 3. Setting the number of stitches in slow start 1. Press , then press the key until the programming screen displays P-05. This is the parameter for setting the number of stitches in the slow start. 2. Press . The screen will display the number of stitches you want in the slow start, which ranges from 1 to 15.
  • Page 16 Parameter List Note: If the above parameters do not match the actual parameters, please work according to the machine’s parameters.

  • Page 17: Parts Book

    PARTS BOOK Please confirm the relative applications, reference number and part number when buying the parts.
  • Page 18 1. Machine frame mechanism...
  • Page 19 1. Machine frame mechanism Thread Cutter...
  • Page 20 2. Main shaft and thread take-up & needle bar mechanism...
  • Page 21 2. Main shaft and thread take-up & needle bar mechanism...
  • Page 22 3. Hang lifter mechanism...
  • Page 23 3. Hang lifter mechanism...
  • Page 24 4. Feed mechanism...
  • Page 25 4. Feed mechanism...
  • Page 26 5. Feed adjusting mechanism...
  • Page 27 5. Feed adjusting mechanism...
  • Page 28 6. Hook of driving shaft mechanism...
  • Page 29 6. Hook of driving shaft mechanism...
  • Page 30 7. Lubrication mechanism...
  • Page 31 7. Lubrication mechanism...
  • Page 32 8. Oil reservoir and knee pan plate mechanism...
  • Page 33 8. Oil reservoir and knee pan plate mechanism...
  • Page 34 9. Accessories part mechanism...
  • Page 35 9. Accessories part mechanism...
  • Page 36 10. Thread trimmer mechanism...
  • Page 37 10. Thread trimmer mechanism...
  • Page 38 11. D2 Component...
  • Page 39 11. D2 Component...

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