Black & Decker LST400 User Manual

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INSTRUCTION MANUAL
20V max* Trimmer/edger
KEY INFORMATION YOU SHOULD KNOW:
• The guard must be installed before trimming or edging - if not, the motor will overheat.
• When replacing the line, use only .065 inch diameter ROUND line (B+D Model #AF-100
is recommended) - otherwise the trimmer will not function properly.
• Do not bump the feed head against the ground - it will disrupt the automatic feed
mechanism.
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If you have a question or experience a problem with your BLACK+DECKER purchase, go
to http://www.blackanddecker.com/instantanswers
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call 1-800-544-6986 from 8 a.m. to 5 p.m. EST Mon. - Fri. to speak with an agent.
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SAVE THIS MANUAL FOR FUTURE REFERENCE.
VEA EL ESPANOL EN LA CONTRAPORTADA.
INSTRUCTIVO DE OPERACIÓN, CENTROS DE SERVICIO Y PÓLIZA DE GARANTÍA.
ADVERTENCIA: LÉASE ESTE INSTRUCTIVO ANTES DE USAR EL PRODUCTO.
*Maximum initial battery pack voltage (measured without a workload) is 20 volts. Measured under a workload,
nominal voltage is 18.
CATALOG NUMBERS
LST400, LST420

Black & Decker LST400 Specifications

General

Power source	Battery
Operating time	60 min
Battery voltage	20 V
Line diameter	1.65 mm
Product color	Black, Orange
Plant protector	Yes
Rotational speed	7200 RPM
Cutting diameter (max)	- mm

Weight and Dimensions

Weight	2857.63 g

Summary

Safety Guidelines and Definitions

Important Safety Warnings

Crucial warnings to reduce risk of injury during trimmer operation.

Reducing Risk of Injury

Essential steps to minimize injury risk before and during trimmer operation.

Important Safety Instructions for Battery Chargers

Important Safety Instructions for Battery Packs

Functional Description

Charging Procedure

Important Charging Notes

Key considerations for optimal battery charging, temperature, and troubleshooting.

Installing and Removing the Battery Pack

Instructions for safely inserting and removing the battery pack from the trimmer.

Assembly and Adjustment

Installing the Guard

Detailed steps for securely attaching the safety guard to the trimmer.

Attaching the Auxiliary Handle

Operating the Trimmer

Switching On and Off

Convert to Edging Mode

Edging

Accelerator Switch & Runtime Extension Mode

Replacing the Spool

Maintenance

Troubleshooting

Trimmer Runs Slowly

Automatic Line Feed Does Not Work