Wen 40439 Instruction Manual
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Wen 40439 Instruction Manual

40v max lithium ion
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MODEL 40439, 40439BT
40V MAX LITHIUM ION
LAWN MOWER
Instruction Manual
NEED HELP? CONTACT US!
Have product questions? Need technical support? Please feel free to contact us:
1-800-232-1195 (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 40439

  • Page 1 1-800-232-1195 (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

    CONTENTS WELCOME Introduction ..................... 3 Specifications ....................3 SAFETY General Safety Rules ..................4 Specific Rules for Lawn Mowers ..............6 Battery & Charger Instructions ................ 7 Electrical Information ..................10 BEFORE OPERATING Know Your Lawn Mower .................11 Assembly & Adjustment ................. 11 OPERATION &...

  • Page 3: Welcome

    NOTE: Model 40439BT does not include battery or charger. WEN plans to continue to add more and more items to our 40V line. For an up-to-date list of the 40V cordless tools compatible with the included battery and charger, visit wenproducts.com and search model number 40401 (2 Ah) or...

  • 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 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: Specific Rules For Lawn Mowers

    If damage is found, make sure service work on this item. Before attempting to make to complete all repairs before attempting to operate the any adjustments or repairs, contact the WEN Products mower again. customer help line at 1-800-232-1195 for more informa- 6.

  • Page 7: Battery & Charger Instructions

    • Use only recommended attachments – Use of an at- of explosive atmospheres (gaseous fumes, dust or flam- tachment not recommended or sold by WEN Products mable materials) because sparks may be generated when may result in risk of fire, electric shock or personal in- inserting or removing the battery pack, which could lead jury.
  • Page 8 If the battery or charger are damaged, 4. Do not throw battery packs into an open fire as this call WEN customer service at 1-800-232-1195 for as- poses a risk of explosion. Do not ignite the battery pack sistance.
  • Page 9 BATTERY & CHARGER INSTRUCTIONS Despite all the safety precautions, caution must always be exercised when handling batteries. The following points must be obeyed at all times to ensure safe use. Safe use can only be guaranteed if undamaged cells are used. Incor- rect handling of the battery pack can cause cell damage.

  • Page 10: Electrical Information

    ELECTRICAL INFORMATION GROUNDING INSTRUCTIONS (FOR CHARGER) IN THE EVENT OF A MALFUNCTION OR BREAKDOWN, grounding provides the path of least resistance for an electric current and reduces the risk of electric shock. This tool is equipped with an electric cord that has an equipment grounding conductor and a grounding plug.

  • Page 11: Before Operating

    KNOW YOUR LAWN MOWER 1 Trigger Switch 2 Safety 3 Key Switch 4 Grass Catcher 5 Cutting Height Adjustment Handle 6 Side Chute 7 Side Discharge Door 8 Rear Discharge Door 9 Battery Holder ASSEMBLY & ADJUSTMENTS WARNING! This charger is for indoor use only. Do not expose either the tool, the battery or the charger to rain or use in damp locations.
  • Page 12 ASSEMBLY & ADJUSTMENTS FIG. A FIG. B INSTALLING THE GRASS CATCHER (FIG. C) NOTE: Do not install the grass catcher, the side chute or the mulching plug simultaneously. When one is installed, the other two should not be. Before installing, make sure the grass bag has been properly attached to the metal grass catcher frame via the clips around the mouth of the bag.
  • Page 13 The WEN 40V Lawn Mower is equipped with two slots for batteries. Open the clear lid to reveal slots for both bat- teries. To insert the battery, slide it into one of the two slots until it clicks into place. Make sure the battery is fully inserted and latched into position.

  • Page 14: Operation & Maintenance

    OPERATION STARTING AND STOPPING THE MOWER NOTE: Before starting the mower, make sure all adjustments have been made and that you have selected whether you will be using the grass catcher, the mulching plug or the side discharge port (only have one installed at a time during operation).

  • Page 15: Maintenance

    MAINTENANCE WARNING! Always remove battery before adjusting, cleaning, or checking a function on the tool. CLEANING THE MOWER Keep all safety devices, air vents, and motor housing free of debris and dirt. Wipe down the equipment with a cloth and/or compressed air. It is highly suggested that you clean the device after every use. Do not use cleaning agents, as these can attack the plastic and weaken the structural integrity of the lawn mower.
  • Page 16 MAINTENANCE STORING THE MOWER The handle of the mower can fold in on itself to allow for easy storage. Simply loosen the handle locking knobs and collapse it in on itself by squeezing the outside edges of the lower handle. Make sure to remove the switch key and the batteries before storing the mower.

  • Page 17: Storage

    Examine the cordless tool thoroughly for worn, loose or damaged parts. If you need to repair or replace a part, contact WEN customer service at 1-800-232-1195. Clean the unit before storing or transporting. Be sure to secure the unit while transporting.

  • Page 18: Exploded View & Parts List

    EXPLODED VIEW & PARTS LIST Part No. Description Qty. Part No. Description Qty. 40439-001 Insulation Tube 40439-008 Switch Box Cover 40439-002 Upper handle 40439-009 Self-Tapping Screw 40439-003 Pull Rod 40439-010 Key Straps 40439-004 Holder 40439-011 Link Switch 40439-005 Holder 40439-012...
  • Page 19 40439-097 Bolt 40439-046 Fixing Base 40439-098 Fan Blade 40439-047 Clamp 40439-099 Blade Positioning Plate 40439-048 Clamp 100 40439-100 Blade 40439-049 Housing 101 40439-101 Blade Pressboard 40439-050 Pan Head Tapping Screws 102 40439-102 Hexagon Headed Bolt 40439-051 Mattress Protector 103 40439-103...

  • Page 20: Warranty Statement

    (2) years from date of purchase or 500 hours of use; whichever comes first. Ninety days for all WEN products if the tool is used for professional or commercial use.

This manual is also suitable for:

40439bt

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