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Harbor Freight Tools 91500 Assembly And Operating Information

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OVERLOCK SEWING MACHINE
TWO NEEDLE - FOUR THREAD
Model 91500
ASSEMBLY AND OPERATING INFORMATION
3491 Mission Oaks Blvd., Camarillo, CA 93011
Visit our Web site at http://www.harborfreight.com
TO PREVENT SERIOUS INJURY,
READ AND UNDERSTAND ALL WARNINGS
AND INSTRUCTIONS BEFORE USE.
©
®
Copyright
2004 by Harbor Freight Tools
. All rights reserved. No portion of this
manual or any artwork contained herein may be reproduced in any shape or form
without the express written consent of Harbor Freight Tools.
For technical questions please call 1-800-444-3353.

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Summary of Contents for Harbor Freight Tools 91500

  • Page 1 2004 by Harbor Freight Tools . All rights reserved. No portion of this manual or any artwork contained herein may be reproduced in any shape or form without the express written consent of Harbor Freight Tools. For technical questions please call 1-800-444-3353.

  • Page 2: Product Specifications

    Failure to follow all instructions listed below may result in electric shock, fire, and/or serious injury. SAVE THESE INSTRUCTIONS WORK AREA Keep your work area clean and well lit. Cluttered and dark work areas invite accidents. SKU 91500 PAGE 2...

  • Page 3: Electrical Safety

    Stay alert. Watch what you are doing, and use common sense when operating an electric appliance. Do not use an electric appliance while tired or under the influence of drugs, alcohol, or medication. A moment of inattention while operating an electric appliance may result in serious personal injury. SKU 91500 PAGE 3...
  • Page 4 Check for misalignment or binding of moving parts, breakage of parts, and any other condition that may affect the operation of the appliance. If damaged, have the appliance serviced before using. Many accidents are caused by poorly maintained appliances. SKU 91500 PAGE 4...
  • Page 5 Underwriters Laboratories, Inc., the Cana- dian Standard Association, and the National Electrical Code. (See Figure A.) Double insulated tools may be used in either of the 120 volt outlets shown in the following illustration. (See Figure A.) FIGURE A SKU 91500 PAGE 5...

  • Page 6: Extension Cords

    2.1 – 3.4 3.5 – 5.0 5.1 – 7.0 7.1 – 12.0 12.1 – 16.0 16.1 – 20.0 * Based on limiting the line voltage drop FIGURE B to five volts at 150% of the rated amperes. SKU 91500 PAGE 6...

  • Page 7: Specific Safety Rules

    SPECIFIC SAFETY RULES Maintain labels and nameplates on the Sewing Machine. These carry important information. If unreadable or missing, contact Harbor Freight Tools for a replacement. Check for damaged parts. Before using this product, carefully check that it will operate properly and perform its intended function. Check for damaged parts and any other conditions that may affect the operation of this product.

  • Page 8: Product Features

    (14B) 18F. POWER SWITCH. 32F. LAMP. (55A) (55A) (32F) (1A) (Machine With Cover Open) (21E) UPPER PRESSER KNIFE FOOT (30A) RIGHT SPANNER LOOPER (13A) (9F) (24A) (18F) FEED LOWER KNIFE ADJUSTING LEFT LOOPER KNOB FIGURE D SKU 91500 PAGE 8...
  • Page 9 BACK. Then, re-tighten the two Setting Screws to secure the Needles in place. (See Figures D and F.) NEEDLE HOLDER SETTING SCREW (21B) (23B) NEEDLE (26B) FIGURE F SKU 91500 PAGE 9 REV 12/04...
  • Page 10 In example: RED = SPOOL #1 YELLOW = SPOOL #2 GREEN = SPOOL #3 TURQUOISE = SPOOL #4 (See Figure H, next page.) SKU 91500 PAGE 10...
  • Page 11 FRONT VIEW (WITH LOOPER COVER (24A) OPEN) SPOOL #3 SPOOL #1 SPOOL #2 SPOOL #4 (GREEN) (RED) (YELLOW) (TURQUOISE) NEEDLE NEEDLE (26B) (26B) RIGHT LOOPER (30C) LEFT LOOPER (17C) FIGURE H SKU 91500 PAGE 11...
  • Page 12 CAUTION! Always make sure no fabrics or other objects are left laying on top of the Pedal Switch Assembly (33F). (See Figure I.) (Right Side View) POWER WIRE (29F) MACHINE FOOT SWITCH PEDAL SWITCH ASSY. SOCKET PLUG (33F) FIGURE I SKU 91500 PAGE 12...
  • Page 13 Needle (26B) eye, stop the tie knot before the Needle eye. Then, cut the thread and pass it through the Needle eye. (See Figure G and Figure J.) PRESSER FOOT SPANNER (9B) PRESSER FOOT ASSY. (1B) FIGURE J SKU 91500 PAGE 13...
  • Page 14 CAUTION! Make sure the Power Switch (18F) is in its “OFF” position and the Power Wire (29F) is unplugged from its electrical outlet before performing this procedure. Use caution when handling or working around knives, loopers, or other sharp parts. (See Figure D and Figure I.) SKU 91500 PAGE 14...
  • Page 15 To Replace The Lower Knife: CAUTION! Make sure the Power Switch (18F) is in its “OFF” position and the Power Wire (29F) is unplugged from its electrical outlet before performing this procedure. (See Figure D and Figure I.) SKU 91500 PAGE 15...
  • Page 16 When using only one Needle, make sure to remove the other Needle. (See Figure N and Figure O.) RIGHT LOOPER THREAD (TOPSIDE) LEFT NEEDLE THREAD LEFT LOOPER THREAD (UNDERSIDE) RIGHT NEEDLE THREAD FIGURE N SKU 91500 PAGE 16 REV 12/04...
  • Page 17 Lift the Presser Foot Assembly (1B). (See Figure J.) Remove the Moveable Sewing Table (13A). (See Figure D.) Unscrew the two Needle Plate Screws (5E, 6E) and remove the Needle Plate (1E). (See Figure D and Figure P.) SKU 91500 PAGE 17...
  • Page 18 A single layer of light weight fabric can be gathered to achieve sleeve heads, lower edges, yokes, leca edging, or frills. To do so, set the Feed Adjusting Knob (21E) at its maximum “5”. Set the Differential Feed Adjusting Stud (93E) from “1.5” to “2”. (See Figure D.) SKU 91500 PAGE 18...
  • Page 19 Rethread machine. Differential Feed Dial at Set value of Differential Feed wrong ratio. Dial at 0.7-N. Machine does not operate. Power Cord Plug not connected. Connect Power Cord Plug to a 120 volt, grounded, electrical receptacle. SKU 91500 PAGE 19...

  • Page 20: Inspection, Maintenance, And Cleaning

    TECHNICIANS AND NOT BY THE BUYER. THE BUYER ASSUMES ALL RISK AND LIABILITY ARISING OUT OF HIS OR HER REPAIRS TO THE ORIGINAL PRODUCT OR REPLACEMENT PARTS THERETO, OR ARISING OUT OF HIS OR HER INSTALLATION OF REPLACEMENT PARTS THERETO. SKU 91500 PAGE 20...

  • Page 21: Parts List A

    FRONT COVER / TENSION DIAL / BULB COVER NOTE: When ordering parts from Parts List A and Assembly Diagram A include the suffix “A” behind the part number (example: 1A - Thread Rack Bracket). SKU 91500 PAGE 21...
  • Page 22 PARTS LIST A - CONT. NOTE: Some parts are listed and shown for illustration purposes only, and are not available individually as replacement parts. SKU 91500 PAGE 22...

  • Page 23: Assembly Diagram A

    ASSEMBLY DIAGRAM A NOTE: Some parts are listed and shown for illustration purposes only, and are not available individually as replacement parts. SKU 91500 PAGE 23...
  • Page 24 ASSEMBLY DIAGRAM A - CONT. NOTE: Some parts are listed and shown for illustration purposes only, and are not available individually as replacement parts. SKU 91500 PAGE 24...

  • Page 25: Parts List B

    Some parts are listed and shown for illustration purposes only, and are not available individually as replacement parts. SEWING TABLE / LOOPER COVER NOTE: When ordering parts from Parts List B and Assembly Diagram B include the suffix “B” behind the part number (example: 1B - Presser Foot Assembly). SKU 91500 PAGE 25...

  • Page 26: Assembly Diagram B

    ASSEMBLY DIAGRAM B SKU 91500 PAGE 26...
  • Page 27 EXTENSION TABLE / MOTOR COVER / THREAD GUIDE BAR / SPOOL STAND NOTE: When ordering parts from Parts List C and Assembly Diagram C include the suffix “C” behind the part number (example: 1C - Left Looper Crank). SKU 91500 PAGE 27...
  • Page 28 ASSEMBLY DIAGRAM C NOTE: Some parts are listed and shown for illustration purposes only, and are not available individually as replacement parts. SKU 91500 PAGE 28...
  • Page 29 Some parts are listed and shown for illustration purposes only, and are not available individually as replacement parts. MACHINE FRAME / LOWER KNIFE / STITCH PLATE NOTE: When ordering parts from Parts List D and Assembly Diagram D include the suffix “D” behind the part number (example: 1D - Screw). SKU 91500 PAGE 29...
  • Page 30 ASSEMBLY DIAGRAM D NOTE: Some parts are listed and shown for illustration purposes only, and are not available individually as replacement parts. SKU 91500 PAGE 30...
  • Page 31 PARTS LIST E NOTE: Some parts are listed and shown for illustration purposes only, and are not available individually as replacement parts. MAIN SHAFT / UPPER KNIFE SKU 91500 PAGE 31...
  • Page 32 Some parts are listed and shown for illustration purposes only, and are not available individually as replacement parts. NOTE: When ordering parts from Parts List E and Assembly Diagram E include the suffix “E” behind the part number (example: 1E - Needle Plate). SKU 91500 PAGE 32...
  • Page 33 ASSEMBLY DIAGRAM E NOTE: Some parts are listed and shown for illustration purposes only, and are not available individually as replacement parts. SKU 91500 PAGE 33...
  • Page 34 ASSEMBLY DIAGRAM E - CONT. NOTE: Some parts are listed and shown for illustration purposes only, and are not available individually as replacement parts. SKU 91500 PAGE 34...
  • Page 35 ASSEMBLY DIAGRAM E - CONT. NOTE: Some parts are listed and shown for illustration purposes only, and are not available individually as replacement parts. SKU 91500 PAGE 35...
  • Page 36 HAND WHEEL / STITCH LENGTH DIAL NOTE: When ordering parts from Parts List F and Assembly Diagram F include the suffix “F” behind the part number (example: 1F - Main Shaft Left Bushing). SKU 91500 PAGE 36...
  • Page 37 ASSEMBLY DIAGRAM F NOTE: Some parts are listed and shown for illustration purposes only, and are not available individually as replacement parts. SKU 91500 PAGE 37...
  • Page 38 PARTS LIST / ASSEMBLY DIAGRAM G NOTE: Some parts are listed and shown for illustration purposes only, and are not available individually as replacement parts. NEEDLE BAR / PRESSER BAR / PRESSER FOOT SKU 91500 PAGE 38...

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