Reliable 4020SW Instruction Manual

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4020SW
INDUSTRIAL SEWING MACHINE
INSTRUCTION MANUAL

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  • Page 1 4020SW INDUSTRIAL SEWING MACHINE INSTRUCTION MANUAL...
  • Page 3: Precautions Before Starting Operation

    1. PRECAUTIONS BEFORE STARTING OPERATION 1 Safety Precautions: (1) When turning the power on, keep your hands and fingers away from the area around/under the needle and the area around the balance wheel. (2) Power must be turned off when the machine is not in use, or when the operator leaves the seat. (3) Power must be turned off when tilting the machine head, installing or removing the “V”...
  • Page 4: Preparation And Lubrication

    8 mm Hand Presser foot lift 14mm Knee DP×17 22 -24 Needle Rotating Hook Double Capacity Hook Large Hook for Trimmer Manual Lubrication Motor 850W Servo Motor 3. PREPARATION AND LUBRICATION 1 Cleaning the machine Before leaving the factory, the machine parts are coated with rust-preventive grease, which may be hardened and contaminated by dust during storage and shipment.
  • Page 5 Lubrication of rotating hook (Fig.4) Add the oil from the oil hole 1 unitl to the position 2. Adjusting the lubrication (Fig.4) Oil adjusting screw 3 can adjust the lubrication of the rotating hook:Turn oil-adjusting screw 3 clockwise to increase oil and turn oil-adjusting screw 3 counter-clockwise to decrease oil. 4.
  • Page 6 7. REMO ING AND INSERTING THE BOBBIN 1) Turn the balance wheel to lift needle bar 1 to the upper end of its stroke. Place the feed dog at this side in its travel turning the balance wheel, and open the slide plate A. (Fig.1) 2) Open on the drip pan, and then open the hinged latch with left thumb and index finger.
  • Page 7: Regulating The Thread Tensions

    9. REGULATING THE THREAD TENSIONS For ordinary stitching, the tension of the upper and the lower threads should be equal so as to lock both threads in the center of the material. (1 Fig.9) If the tension on either thread is stronger than on the other, imperfect stitching will be the result.
  • Page 8 12. STITCH LENGTH ADJUSTMENTS AND RE ERSING LE ER Fig.11 Stitch length can be set by turning the detail 2. Numeric figures on the dial show the stitch length in mm. The desired numeric figure on the dial should be set at just above, while depressingthe reversing lever1 slightly.
  • Page 9 15. THE POSITION OF THE NEEDLE AND THE NEEDLE HOLE OF THE FEED DOG Turning the balance wheel to lower slowly the needle bar, check whether the needle descends to the center of the needle hole of the feeder or not. (Please check again the needle is perfect one.) 1) Remove the cover G (Fig.2) and loosen the screw 1 (Fig.13) slightly.
  • Page 10 18. TIMING BETWEEN THE HOOK AND THE NEEDLE Fig.18, Fig.19 After setting the needle barheight, set stitch length to minimum, turn the balance wheel toward you until the needle bar reaches its lowest point. Continue turning and allow the needle bar to raise about 2 mm while on its upward stroke.
  • Page 11 21. ADJUSTMENT OF THE CLEARANCE BETWEEN FEED FORKED CONNECTION AND FEED FORK COLLAR Fig.15, Fig.16 Incorrect clearance between the fork 8 of feed forked connection and feed fork collar 9 will bring irregular stitch length or overheating, etc. To adjust this, open the cover plate. Remove the cover plate and the oil reservoir. To increase the clearance, loosen the screw and turn the screw to left or counter-clockwise.
  • Page 13: A.arm Bed And Its Accessories

    A.ARM BED AND ITS ACCESSORIES Fig. Part No. Description Remarks H3115B0721 Arm cover(right) HA06030080 Screw H2020M0069 Felt H2020M0067 Felt H2020M0066 Arm oil box(right) H2020M0068 Oil wick H2020M0068 Oil wick H2400J2010 Oil cap H2400J2020 Oiling felt H3106B0671 Face plate HA300B2170 Screw SM11/64(40)×9 HA124B0711 Slide plate...
  • Page 14 A.ARM BED AND ITS ACCESSORIES Fig. Part No. Description Remarks HA115B7010 Stop disc HA607B0068 Tension releasing spring H2504C0657 Thread tension releasing plate H2504C0656 Thread tension disc H2504C0121 Thread tension releasing pin HA310B0701 H31611B211 HA7311C606 Screw H3100B2070 Thread guide H31611B111 Tension bracket H2504C0013 Thread tension stud HA300B2170...
  • Page 15 B.ARM SHAFT MECHANISM...
  • Page 16 B.ARM SHAFT MECHANISM Fig. Part No. Description Remarks H3100C2110 Arm shaft H2009B0743 Felt H31133B104 Arm shaft bushing(left) HA100C2020 Screw SM15/64(28)×10 H31122B204 Arm shaft bushing(middle) HA105D0662 Screw SM1/4(40)×4 HA105D0661 Arm shaft collar HA113D2112 bevel gear for arm shaft HA108D0663 Set screw SM1/4(40)×7 HA112D3012 C-type ring H3100E2010...
  • Page 17 B.ARM SHAFT MECHANISM Fig. Part No. Description Remarks H20111C106 Oiling felt presser pin HA100C2060 Screw SM9/32(28)×12 H4204C0652 Screw SM9/32(28)×12 HA108C0662 Screw SM1/4(40)×6 H7324D8001 Runner HKI5037101 Electronic control unit H415050200 Screw M5×20 H415050400 Screw M5×40 H415050200 Screw M5×20...
  • Page 18: C.rotating Hook Shaft Mechanism

    C.ROTATING HOOK SHAFT MECHANISM...
  • Page 19 C.ROTATING HOOK SHAFT MECHANISM Fig. Part No. Description Remarks C01 HA600E2080 Bobbin case complet C01 HA600E2080 Bobbin case complete C02 H1100E2010 Bobbin C02 H1100E2010 Bobbin C03 HA606E0066 Rotating hook complete C03 HA606E0066 Rotating hook complete C04 H2000M0070 Screw C05 HA600E2040 Rotating hook positione C05 HA600E2040 Rotating hook positioner...
  • Page 20 C.ROTATING HOOK SHAFT MECHANISM Fig. Part No. Description Remarks H3100D2060 Push button H3100D2090 Push button spring H007013035 Stop ring H3121D8001 Ratchet wheel H3100D2080 Hook shaft lock ratchet HA307C0662 Screw SM1/4(40)×6 HA100C2090 Screw SM15/64(28)×4.5 HA704B0653 Hook shaft bushing(middle) H3104B0074 Hook shaft bushing(middle) complete H2000I2080 Set screw SM11/64(40)×8.5...
  • Page 21: D.stitch Regulator Mechanism

    D.STITCH REGULATOR MECHANISM...
  • Page 22 D.STITCH REGULATOR MECHANISM Fig. Part No. Description Remarks HA104F0651 Hinge pin HA104F0652 Feed connecting link H3100E2170 Feed connecting link hinge pin HA104F0654 Screw SM15/64(28)×10 H42111E104 Feed regulator cam H3100E2060 Feed regulator cam H4500E2010 Feed regulator cam HA104F0654 Screw SM15/64(28)×10 H2200D2030 Spring retainer H2000F2030 Spring retainer H2204D0651 Reverse link...
  • Page 23 E.LOWER FEEDING MECHANISM...
  • Page 24 E.LOWER FEEDING MECHANISM Fig. Part No. Description Remarks H2009B0069 Feed rock shaft bushing HA100C2020 Set screw SM15/64(28)×10 HA304G0656 Screw H3100E2110 Feed rock shaft crank H3100E2120 Feed bar shaft HA100C2020 Screw SM15/64(28)×10 H2005L0065 Feed rock shaft HA104G0012 Screw H3116E0661 Feed bar HA104G0654 Screw SM1/8(44)×6 H3100E2160...
  • Page 25: F.needle Bar Feeding Mechanism

    F.NEEDLE BAR FEEDING MECHANISM...
  • Page 26 F.NEEDLE BAR FEEDING MECHANISM Remarks Fig . Part No. Description F01 H3100F2010 Crank link F02 H3100F2020 Lifting bell crank F03 H3100F2030 Link F04 HA700F2100 Screw F05 H3111F0651 Vibrating presser foot F06 H3100F2240 Needle bar rack frame position bracket F07 H3400C2020 Screw F08 H2000 2030 Needle...
  • Page 27 F.NEEDLE BAR FEEDING MECHANISM Fig. Part No. Description Remarks H3100F2100 Lifting rock shaft bushing H3112F0663 Lifting rock shaft H3112F0661 Screw H3112F0662 H3100F2330 Lifting eccentric H3131F0704 Needle bar rock frame rock shaft crank(left) HA100B2110 Set screw SM11/64(40)×5.5 H3100F2340 Guide for slide block H3100F2350 Slide block H3100F2360...
  • Page 28: G.presser Foot Mechanism

    G.PRESSER FOOT MECHANISM...
  • Page 29 G.PRESSER FOOT MECHANISM Fig. Part No. Description Remarks HA3411D308 Set screw H3100G2020 Presser bar position guide HA100C2020 Set screw H3104B0654 Presser bar bushing(upper) H2404I0034 Screw H3106G0652 Presser bar position guide bracket H3107G0661 Screw H3107G0662 Screw H3100G2070 Presser bar lifter H3100G2080 Screw H2404I0034 Screw HA100C2020 Screw...
  • Page 30 H.KNIFE MECHANISM...
  • Page 31 H.KNIFE MECHANISM 名 称 备 注 序号 中国图号 HA7511N112 Solenoid HA712N0698 Thread trimmer driving lever HA712N6910 Flexible wire presser HA712N0699 Screw SM11/64(40)×4 HA712N6911 Flexible wire presser HA712N6912 Screw SM1/8(44)×7 HA712N0695 Stud screw HA712N0697 Spring HA712N0696 Collar HA7311CC06 Screw HA710N0683 Nut HA712N0692 Link stud H007013040 Washer...
  • Page 32 H.KNIFE MECHANISM Fig. Part No. Description Remarks HA7221N106 Roller HA7221N206 Roller pin HA113F0684 Screw SM15/64(28)×8.5 HA700N0050 Spring cover HA700N0040 Spring HA710N0682 Lever stopper plate HA307C0662 Screw H2206H0661 Stopper lever HA700N0110 Coil spring HA715N0711 Collar HA105D0662 Screw HA706N0664 Washer H2207H0671 Screw HA300C2030 Screw HA300I2040 Wire holder...
  • Page 33 I.TOUCH BACK AND DETECTOR MECHANISM...
  • Page 34 I.TOUCH BACK AND DETECTOR MECHANISM Fig. Part No. Description Remarks HA300I2040 Wire holder HA300B2170 Screw H4204I0651 Switch bracket H411030060 Screw HA704O0657 Rubber plug HA704O0659 Screw HA704O0654 Plate spring H2205I0661 Switch bracket HA7161O104 Switch wire HA7641B319 Tie-in HA704O0021 Touch switch complete H007013030 Stop ring HA704O0653 Spring...
  • Page 35 J.ACCESSORIES...
  • Page 36 J.ACCESSORIES Fig. Part No. Description Remarks HA300J2180 Vinyl cover HA307J0067 Bed hinge connection H2004O0069 Oiler H2000G2030 Needle DP×17 22# HA300J2210 Screw driver(small) H2004O0066 Rubber cushion(small) H2004O0065 Rubber cushion(large) H2207J0065 Oil pan assy. H801045200 Screw 4.5×20 HA300J2230 Washer Nail HA600E2060 Bobbin H1100E2010 Bobbin HA200J2030...
  • Page 39 1 800 268 1649 www.reliablecorporation.com...

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