Wen 20438BT Instruction Manual
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Wen 20438BT Instruction Manual

Wen 20438BT Instruction Manual

20v max variable speed brushless file sander
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MODEL 20438, 20438BT
20V MAX VARIABLE SPEED
BRUSHLESS FILE SANDER
Instruction Manual
NEED HELP? CONTACT US!
Have product questions? Need technical support? Please feel free to contact us:
1-847-429-9263 (M-F 8AM-5PM CST)
TECHSUPPORT@WENPRODUCTS.COM
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. If you use
your tool properly and for its intended purpose, you will enjoy years of safe, reliable service.
WENPRODUCTS.COM
For replacement parts and the most up-to-date instruction manuals, visit

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Summary of Contents for Wen 20438BT

  • Page 1 1-847-429-9263 (M-F 8AM-5PM CST) TECHSUPPORT@WENPRODUCTS.COM 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. If you use your tool properly and for its intended purpose, you will enjoy years of safe, reliable service.

  • Page 2: Table Of Contents

    1/2 x 18-Inch Sandpaper (Series 6307SP) 5/16 x 18-Inch Sandpaper (Series 20438SP) WEN plans to continue to add more items to our 20V line. For an up-to-date list of the 20V cordless tools compatible with the included battery and charger, visit wenproducts.com.

  • Page 3: Introduction

    INTRODUCTION Thanks for purchasing the WEN File Sander. We know you are excited to put your tool to work, but first, please take a moment to read through the manual. Safe operation of this tool requires that you read and understand this operator’s manual and all the labels affixed to the tool.

  • Page 4: Safety

    GENERAL SAFETY RULES WARNING! Read all safety warnings and all instructions. Failure to follow the warnings and instructions may result in electric shock, fire and/or serious injury. Safety is a combination of common sense, staying alert and knowing how your item works. The term “power tool” in the warnings refers to your mains-operated (corded) power tool or battery-operated (cordless) power tool.

  • Page 5: California Proposition 65 Warning

    GENERAL SAFETY RULES WARNING! Read all safety warnings and all instructions. Failure to follow the warnings and instructions may result in electric shock, fire and/or serious injury. Safety is a combination of common sense, staying alert and knowing how your item works. The term “power tool” in the warnings refers to your mains-operated (corded) power tool or battery-operated (cordless) power tool.

  • Page 6: File Sander Safety Warnings

    FILE SANDER SAFETY WARNINGS WARNING! Do not let comfort or familiarity with the product replace strict adherence to product safety rules. Failure to follow the safety instructions may result in serious personal injury. WARNING! EXTREME CAUTION REQUIRED WHEN SANDING PAINT. The dust residue may contain LEAD which is poisonous.
  • Page 7 FILE SANDER SAFETY WARNINGS WARNING! Do not let comfort or familiarity with the product replace strict adherence to product safety rules. Failure to follow the safety instructions may result in serious personal injury. 10. REPLACING THE SANDING BELT. Replace the sanding belt as soon as it becomes worn or torn. Torn sanding belts can cause deep scratches that are difficult to remove.

  • Page 8: Electrical Information (Charger)

    ELECTRICAL INFORMATION (CHARGER) DOUBLE-INSULATED CHARGER The charger’s electrical system is double-insulated where two systems of insulation are provided. This eliminates the need for the usual three-wire grounded power cord. Double-insulated tools do not need to be grounded, nor should a means for grounding be added to the product. All exposed metal parts are isolated from the internal metal components with protecting insulation.

  • Page 9: Battery & Charger Safety Warnings

    Never carry the charger by its cord or yank it by the cord battery chemicals. If the battery or charger are damaged, to disconnect it from the receptacle. Keep the cord away call WEN customer service at 1-847-429-9263 for as- from heat, oil and sharp edges. Make sure the cord will sistance.

  • Page 10: About The Battery

    BATTERY & CHARGER SAFETY WARNINGS ABOUT THE BATTERY 1. The battery pack has to be charged completely before you use the tool for the first time. 2. For optimum battery performance, avoid low discharge cycles by charging the battery pack frequently. 3.

  • Page 11: Unpacking & Packing List

    UNPACKING & PACKING LIST UNPACKING Carefully remove the file sander from the packaging and place it on a sturdy, flat surface. Make sure to take out all contents and accessories. Do not discard the packaging until everything is removed. Check the packing list below to make sure you have all of the parts and accessories.

  • Page 12: Know Your File Sander

    TOOL PURPOSE Easily sand small, detailed spaces and workpieces with your WEN File Sander. Refer to the following diagrams to become familiarized with all the parts and controls of your file sander. The components will be referred to later in the manual for assembly and operation instructions.

  • Page 13: Assembly & Adjustments

    ASSEMBLY & ADJUSTMENTS WARNING! To avoid injury from accidental startups, make sure that the tool is OFF and the battery is re- moved from the file sander. INSTALLING THE SANDING ARMS Fig. 1 Your file sander comes with two sanding arm options: •...

  • Page 14: Adjusting Belt Tracking

    ASSEMBLY & ADJUSTMENTS WARNING! To avoid injury from accidental startups, make sure that the tool is OFF and the battery is re- moved from the file sander. ADJUSTING THE ANGLE OF THE SANDING ARM Fig. 4 The sanding arm can be adjusted and fixed at any desired angle within the range of -40º...

  • Page 15: Charging The Battery Pack

    NOTE: The battery pack and charger are not included with model 20438BT. 1. Connect the charger to a 120V, 60Hz AC outlet. The green light on the charger will illuminate, indicating that the charger is powered.

  • Page 16: Starting And Stopping The Sander

    OPERATION The tool is intended for sanding flat exterior and interior surfaces, rounding corners and edges, deburring, removing paint, welding spatter and rust, and for sharpening knives and scissors, etc. All other applications are considered to be unsuitable. Only use tool for its intended purpose. CAUTION! Never cover the air vents.

  • Page 17: Routine Inspection

    MAINTENANCE WARNING! To avoid accidents, make sure the power switch is in the OFF position and the battery is removed from the terminal before cleaning or performing any maintenance. Servicing of the tool must be performed by a qualified technician. ROUTINE INSPECTION 1.

  • Page 18: Exploded View & Parts List

    EXPLODED VIEW & PARTS LIST NOTE: Not all parts may be available for purchase. Parts and accessories that wear down over the course of normal use are not covered under the warranty.
  • Page 19 EXPLODED VIEW & PARTS LIST Part No. Description Qty. Part No. Description Qty. 20438-001 Pin, 3x13mm 20438-028 Gearbox Upper Cover Needle Roller Bearing, 20438-029 Gearbox Lower Cover 20438-002 HK0310 Self-tapping Screw, 20438-012 20438-003 Small Roller ST3x10 20438-004 Sanding Belt Board, 1/2" 20438-031 Bearing, 606ZZ 20438-005...

  • Page 20: Warranty Statement

    WARRANTY STATEMENT 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 PRODUCTS FOR HOME USE GREAT LAKES TECHNOLOGIES, LLC (“Seller”) warrants to the original purchaser only, that all WEN consumer power tools will be free from defects in material or workmanship during personal use for a period of two (2) years used for professional or commercial use.

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20438

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