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MASTER TOOL CUB SEWING MACHINE
OWNER'S MANUAL
U.S. Patent #9,657,418
800-932-8371
weaverleathersupply.com
1
22-4959-SP-PKG
INSERT-192 6/22

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  • Page 1 MASTER TOOL CUB SEWING MACHINE OWNER’S MANUAL U.S. Patent #9,657,418 800-932-8371 weaverleathersupply.com 22-4959-SP-PKG INSERT-192 6/22...
  • Page 2: Table Of Contents

    Moving the Flywheel Handle........5 Getting to Know the Master Tool Cub Sewing Machine ....6 Threading .
  • Page 3: Unpack Your Box

    UNPACK YOUR BOX The Master Tool Cub arrives completely assembled. You’ll find the following in your box: 1. Master Tool Cub Sewing Machine 2. Thread Holder 3. Two 4 oz. Spools of White Thread Shipping Weight: 4. Thread Nipper 50 lbs.
  • Page 4: Attaching The Hand-Crank Flywheel

    Shaft Bolts Bolts You may find it easier to transport the Master Tool Cub without the Flywheel attached. The Flywheel can be easily removed after loosening the Bolts with a 3/16" Allen Wrench. Below are instructions on attaching the Flywheel.
  • Page 5: Moving The Flywheel Handle

    MOVING THE FLYWHEEL HANDLE Important Note: Flywheel design features two threaded holes for changing the position of the Flywheel Handle. (Figure 4) The threaded screw inside the Handle can be reached from the cut out portion on the Handle’s end and loosened using the included 7/32" Allen Wrench. Move the Handle to the desired threaded hole, and tighten the screw using the Allen Wrench.
  • Page 6: Getting To Know The Master Tool Cub Sewing Machine

    This guarantee does not extend to any component parts not manufactured by Weaver Leather, or if the machine is modified in any way. Weaver Leather makes no express warranties other than those that are specifically described herein.
  • Page 7: Threading

    THREADING 1) Run thread from Spool (A) on Thread Stand (B) to the Thread Eyelet (C). (Figure 6) 2) Run thread through Tensioner Eyelet 1 (D), around the Tensioner and through Tensioner Eyelet 2 (E). Make sure thread is pulled tightly in between the Tensioner Discs (F). (Figure 7) 3) Run thread down the front of the machine to the Thread Guide (G), threading it from right to left.
  • Page 8: Filling Bobbins

    THREADING CONT. 4) Run thread back up the front of the machine and through the Take-Up Arm (H). Make sure thread is run in front of the Tension Bar (I) at this point. (Figure 9) 5) Run thread back down and behind the Tension Bar (I). (Figure 10) 6) Run thread through the bottom of the Needle Bar (J) and through the Needle Eye towards the machine (K).
  • Page 9: Removing And Inserting Bobbin

    REMOVING & INSERTING BOBBIN REMOVING BOBBIN 1) Turn machine over until Bobbin Case sets in position shown. (Figure 16) 2) Pull back tab (A) to release Bobbin Case. 3) Lift base of Bobbin Case out to remove Bobbin. (Figure 17) Important Note: When closing Bobbin Case, make sure the Case snaps back into place with the tab holding it.
  • Page 10: Stitching

    STITCHING Please Note: This machine does not have reverse. You may choose to turn your work and take a “forward stitch” for a “backstitch,” or tie the thread off manually. (Figure 22) 1) Begin by lifting the Presser Foot by raising the Foot Lift Lever located directly behind it. (Figure 23) 2) Hold the upper thread and bobbin thread under the Presser Foot and to the rear.
  • Page 11 STITCHING ADJUSTING FOOT PRESSURE The amount of pressure the Presser Foot places on your work is controlled by the Foot Pressure Increase Increase Adjustment Knob (A). Turn the knob clockwise Pressure Pressure to increase the pressure placed on your work, or Lessen Lessen counterclockwise to lessen the pressure.
  • Page 12: Adjusting Thread Tension

    ADJUSTING THREAD TENSION Tighten Tighten Thread tension on the Master Tools Cub is Tension Tension Loosen Loosen controlled primarily from the Upper Thread Tension Tension Tension. As needed, turn the Tension Assembly Nut (B) clockwise to tighten the tension or counterclockwise to loosen the tension.
  • Page 13: Changing The Needle

    Needle Needle Position Position Figure 32 NEEDLE & THREAD CHART The Master Tool Cub uses 794S (Chisel Point), 794LR (Twisted NEEDLE THREAD TOP/ Chisel Point) and 7X3R (Round Point) System Needles: SIZE BOTTOM • Chisel Point & Twisted Chisel Point Needles –...
  • Page 14: Maintenance

    MAINTENANCE We recommend oiling the Master Tool Cub after every eight hours of use with Lily Stitching Oil. Oiling Points are indicated on Figures 35, 36 and 37. Figure 35 Figure 36...
  • Page 15: Troubleshooting

    MAINTENANCE Figure 37 TROUBLESHOOTING ADJUSTING TIMING If you think your machine’s timing is off, call Weaver Leather at 1-800-932-8371, ext. 223 for assistance. 800-932-8371 weaverleathersupply.com...
  • Page 16: Replacement Parts

    REPLACEMENT PARTS 1. 65-8228 4. 63500-125 6. 88008-06 Shuttle Thread Stand Needle Bar Set Screw 8-32 x 3/16" 7. 88014-01 Shuttle 2. 63500-124 Cover Door Bobbin Winder 5. 63500-102 Presser Foot 3. 65-8121 Bobbin ➌ ➌ ➊ ➊...

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