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Wen 3920 Manual

16? variable speed scroll saw
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Your new tool has been engineered and manufactured to WEN's highest standards for dependability,
ease of operation, and operator safety. When properly cared for, this product will supply you years
of rugged, trouble-free performance. Pay close attention to the rules for safe operation, warnings,
and cautions. If you use your tool properly and for intended purpose, you will enjoy years of safe,
reliable service.
SPEED SCROLL SAW
IMPORTANT:
NEED HELP? CONTACT US!
Have product questions? Need technical support?
Please feel free to contact us at:
800-232-1195
techsupport@wenproducts.com
WENPRODUCTS.COM
16˝ VARIABLE
(M-F 8AM-5PM CST)
Model # 3920
bit.ly/wenvideo

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Summary of Contents for Wen 3920

  • Page 1 IMPORTANT: Your new tool has been engineered and manufactured to WEN’s highest standards for dependability, ease of operation, and operator safety. When properly cared for, this product will supply you years of rugged, trouble-free performance. Pay close attention to the rules for safe operation, warnings, and cautions.

  • Page 2: Table Of Contents

    Specific Safety Rules For Scroll Saw Electrical Information Know Your Scroll Saw Assembly and Adjustments Operation Maintenance Exploded View and Parts List Warranty TECHNICAL DATA 3920 Model Number: 120 V, 60 Hz, 1.2 A Motor: 550 to 1600 SPM Speed: 16˝ Throat Depth: Blade: 5˝...

  • Page 3: General Safety Rules

    GENERAL SAFETY RULES Safety is a combination of common sense, staying alert and knowing how your item works. SAVE THESE SAFETY INSTRUCTIONS. WARNING: To avoid mistakes and serious injury, do not plug in your tool until the following steps have been read and understood. 1.
  • Page 4 GENERAL SAFETY RULES 14. NEVER STAND ON A TOOL. Serious injury could result if the tool tips or is accidentally hit. DO NOT store anything above or near the tool. 15. DO NOT OVERREACH. Keep proper footing and balance at all times. Wear oil-resistant rubber-soled footwear.

  • Page 5: Specific Safety Rules For Scroll Saw

    SPECIFIC RULES FOR THE SCROLL SAW WARNING: Do not operate the scroll saw until it is assembled and adjusted. Do not operate the scroll saw until you have read and understood both the following instructions and the warn- ing labels on the scroll saw. BEFORE OPERATING: 1.

  • Page 6: Electrical Information

    SPECIFIC RULES FOR THE SCROLL SAW WHEN OPERATING THE SCROLL SAW 1. To avoid injury from unexpected scroll saw movement: - Use the scroll saw on a firm level surface with adequate space for handling and supporting the work piece. - Be sure the scroll saw cannot move when operated.
  • Page 7 ELECTRICAL INFORMATION IMPROPER CONNECTION of the equipment grounding conductor can result in electric shock. The conductor with the green insulation (with or without yellow stripes) is the equipment grounding conductor. If repair or replacement of the electric cord or plug is necessary, DO NOT connect the equipment ground- ing conductor to a live terminal.

  • Page 8: Know Your Scroll Saw

    KNOW YOUR SCROLL SAW...

  • Page 9: Assembly And Adjustments

    ASSEMBLY AND ADJUSTMENTS UNPACKING Carefully unpack the scroll saw and all of its parts. Compare them against the list below. Do not discard the carton or any packaging until the scroll saw is completely assembled. CAUTION: do not lift the saw by the arm that holds the blade. The saw will be damaged. WARNING: To avoid injury from accidental startups, turn switch OFF and remove the plug from the power source outlet before making any adjustments.
  • Page 10 ASSEMBLY AND ADJUSTMENTS Prior to making adjustments, mount the scroll saw on a stable surface. See “Bench mounting the saw.” FIGURE 3 ADJUSTMENTS ALIGN THE BEVEL INDICATOR (Fig. 3-6) The bevel indicator has been factory adjusted. It should be rechecked prior to use for best operation. 1.
  • Page 11 ASSEMBLY AND ADJUSTMENTS BENCH MOUNTING THE SAW (Fig. 7-8) Before operating the saw, it must be firmly mounted to a workbench or another rigid frame. Use the base of the saw to mark and pre-drill the mounting holes.If the saw is to be used in one location, permanently secure it to the work surface using wood screws if mounting to wood.
  • Page 12 ASSEMBLY AND ADJUSTMENTS FIGURE 9 ADJUSTING THE DUST BLOWER (Fig. 9) For best results, the dust blower tube (1) should be adjusted to direct air at both the blade and the work piece. FIGURE 10 SAWDUST COLLECTION PORT (Fig. 10 and 11) This scroll saw allows a hose or vacuum accessory (not provided) to be connected to the dust chute...
  • Page 13 ASSEMBLY AND ADJUSTMENTS BLADE SELECTION (Fig. 12) This scroll saw accepts 5” length pin end and pinless blades, with a wide variety of blade thicknesses and widths. The type of material and intricacies of cutting operations will determine the number of teeth per inch.
  • Page 14 ASSEMBLY AND ADJUSTMENTS BLADE REMOVAL AND INSTALLATION (Fig. 13 to 15) WARNING: To prevent personal injury, always turn saw OFF and disconnect the plug from the power source before changing blades or making adjustments. This saw uses pin-end and pinless blades. Pin-end blades FIGURE 13 are thicker for stability and for faster assembly.

  • Page 15: Operation

    OPERATION RECOMMENDATIONS FOR CUTTING A scroll saw is basically a curve-cutting machine. It can also be used for straight cutting and beveling or angle cutting operations. Please read and understand the following items before attempting to use the saw. 1. When feeding the work piece into the blade do not force it against the blade. This could cause blade deflection.
  • Page 16 OPERATION ON/OFF & SPEED CONTROL SWITCH (Fig. 16) Always wait for the saw to come to a complete stop before FIGURE 16 restarting. 1. To turn the saw on, flip the ON/OFF switch to ON (2). When first starting the saw, it is best to move the speed control knob (1) to the middle speed position.
  • Page 17 OPERATION ANGLE CUTTING (BEVELING) (Fig. 18) 1. Layout or secure design to work piece. FIGURE 18 2. Move the blade guard foot to the highest po- sition by loosening the height adjustment knob (1). Retighten. 3. Tilt the table to the desired angle by loosen- ing the table bevel lock handle (2).
  • Page 18 OPERATION RIP OR STRAIGHT LINE CUTTING (Fig. 20) 1. Raise the blade guard foot (1) by loosening the FIGURE 20 height adjustment knob (2). 2. Measure from the tip of the blade to the desired distance. Position the straight edge parallel to the blade at that distance.

  • Page 19: Maintenance

    MAINTENANCE WARNING: Always turn the switch OFF and unplug the power cord from the outlet before maintaining or lubricating the scroll saw. To ensure that the wood glides smoothly across the work surface, periodically apply a coat of paste wax (sold separately) to the surface of the worktable.

  • Page 20: Exploded View And Parts List

    EXPLODED VIEW & PARTS LIST...
  • Page 21 EXPLODED VIEW & PARTS LIST Item Stock # Description Item Stock # Description 3920B-001 Screw M5X8 48 3920B-048 Screw M5X30 49 3920B-049 PCB 3920B-002 Screw ST4.2X10 50 3920B-050 Drop foot 3920B-003 Side cover 3920B-004 Nut 6 51 3920B-051 Flat Washer 6 3920B-005 Spring Washer 6 52 3920B-052 Screw M6X10 3920B-006 Base...

  • Page 22: Warranty

    LIMITED TWO YEAR WARRANTY WEN Products is committed to building tools that are dependable for years. Our warranties are consistent with this commitment and our dedication to quality. LIMITED WARRANTY OF WEN CONSUMER POWER TOOLS PRODUCTS FOR HOME USE GREAT LAKES TECHNOLOGIES, LLC (“Seller”) warrants to the original purchaser only, that all WEN con- sumer power tools will be free from defects in material or workmanship for a period of two (2) years from date of purchase.

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