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Kobalt 1438127 - User Manual

Kobalt 1438127
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1
PH19152
40 V LITHIUM-ION CORDLESS
STRING TRIMMER
ITEM # 1438127
MODEL #KST 4040X-06
Español p. 22
Serial Number Purchase Date
Questions, problems, missing parts? Before returning to your retailer, call our customer
service department at 1-888-3KOBALT (1-888-356-2258), 8 a.m. - 8 p.m., EST,
Monday - Friday.
ATTACH YOUR RECEIPT HERE

Table of Contents

Questions and Answers

  • R
    roblesgaryAug 10, 2025
    Why does my Kobalt 1438127 Trimmer motor fail to start?
    • A
      Ashley ThorntonAug 11, 2025
      If the Kobalt Trimmer motor doesn't start when you press the switch trigger, there could be a few reasons. First, check that the battery is securely in place, ensuring the latches on the battery compartment snap into place. Another possibility is that the battery isn't charged, so charge it following the instructions that came with your model. If these steps don't work, there might be a wiring or electrical contact issue, so call 1-888-3KOBALT (1-888-356-2258) for technical service.
  • W
    williamscharlesAug 20, 2025
    What to do if Kobalt Trimmer head will not advance line?
    • W
      willie47Aug 20, 2025
      If the Kobalt Trimmer head won't advance the line, it could be due to several reasons. First, stop the trimmer, remove the battery, and check if the motor shaft or trimmer head is bound with grass, and remove any grass. Also, the spool may not have enough line, so remove the battery and replace the trimmer line. In addition, a dirty trimmer head could be the culprit, so remove the battery and clean the spool. Lastly, the line might be tangled on the spool; in this case, remove the battery, take the line off the spool, and rewind it.
  • D
    David GrahamAug 29, 2025
    How to fix Kobalt Trimmer line not cutting well?
    • A
      awardAug 29, 2025
      If the line on your Kobalt Trimmer isn't cutting well, it could be that the cutting blade on the guard has become dull. You can sharpen the cutting blade with a file or replace it with a new blade.

Summary

Product Specifications

Safety Information

Assembly Instructions

Guard Installation

Guide for installing the protective guard.

Connecting Trimmer Tubes

Front Handle Installation

Installing Cutting Line

Battery Installation and Removal

How to install and remove the battery pack.

Adjusting Cutter Blade

Operating Instructions

Turning Trimmer On and Off

Steps to start and stop the string trimmer.

Care and Maintenance

Guard and Motor Maintenance

Troubleshooting Guide

Warranty Information

Kobalt 1438127 Specifications

General IconGeneral
Battery TypeLithium-Ion
Line FeedBump Feed
Shaft TypeStraight
Attachment CapableNo
Power SourceBattery
Battery IncludedYes
Charger IncludedYes
Voltage80-volt
Line Diameter0.080 inches

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