This document is the owner's manual for the Greenworks 20V Lithium-Ion Cordless String Trimmer, model 21262. It provides detailed information on the device's function, technical specifications, usage, and maintenance.
Function Description:
The Greenworks 20V Lithium-Ion Cordless String Trimmer is a battery-powered tool designed for trimming grass and weeds, and for edging along patios, driveways, and walkways. It operates using a monofilament cutting line that automatically advances as it wears down. The trimmer is designed for personal, household use and is not intended for industrial or commercial applications. It emphasizes safety with various warnings and instructions to prevent electric shock, fire, and personal injury. The device is part of Greenworks' commitment to a "ZERO CARBON FOOTPRINT IN THE YARD" initiative, highlighting its cordless, battery-powered nature.
Important Technical Specifications:
- Type: Cordless, battery-powered string trimmer.
- Battery: 20 V, 2 Ah Lithium-Ion (Model #29332, sold separately). The battery pack is not charged upon purchase and requires an initial 24-hour charge.
- Charger: Model #29372, sold separately.
- Speed: 8000 RPM (no load).
- Cutting Path: 12 inches (305 mm).
- Line Diameter: 0.065 inches (1.65 mm).
- Weight: 5.7 lbs (2.6 kg) with battery.
- Warranty: 4-year limited warranty on the product, and a 2-year warranty on the battery and charger against defects in materials, parts, or workmanship.
Usage Features:
- Cordless Operation: Powered by a 20V Lithium-Ion battery, offering freedom of movement without the need for an electrical outlet.
- Trigger Switch and Safety Lock-Out Button: The trimmer is started by pressing a safety lock-out button and then squeezing the trigger switch. Releasing the trigger switch stops the tool.
- Auxiliary Handle: Adjustable for optimum control and balance during operation. Users are instructed to loosen a knob, adjust the handle, and then securely lock it in place.
- Twist-to-Edge Coupler: Allows the trimmer head to be tilted 90 degrees for edging functionality. This is activated by pushing an edge button until the head locks into position.
- Automatic Line Advancement: The trimmer is equipped with an Automatic Line Advancement system that feeds additional line to the correct length as the existing line wears down. If the line does not advance automatically, stopping and restarting the trimmer should trigger a 1/4" (6.4 mm) line feed.
- Protective Guard: A guard must be installed before operation and cannot be removed or disassembled. It protects against thrown debris.
- Battery Installation/Removal: The battery pack slides into the handle housing until it clicks into place. Removal involves sliding down a latch button and pulling the battery pack out.
- Operating Conditions: Recommended for trimming dry grass and weeds during daylight or with adequate lighting. Users are advised to hold the trimmer with both hands for control and balance, guiding it in a semicircular motion.
- Trimming Tips: Includes advice on maintaining consistent speed and height, using only the tip of the cutting line, avoiding resting the spool on the ground, and trimming tall grass in small stages.
Maintenance Features:
- Cleaning: The manual advises removing the battery pack before cleaning. Users should brush or blow dust and debris out of air vents using compressed air or a vacuum, ensuring vents are free of obstructions. The housing and plastic components should be wiped with a moist, soft cloth, avoiding strong solvents or detergents.
- Battery Pack Care:
- Store the battery pack fully charged.
- Recharge when power is low, but avoid overcharging to prolong battery life.
- Remove the battery from the charger once the charging light turns green.
- Do not store the battery pack on the tool or in the charger.
- Recharge at temperatures between 32°F (0°C) and 104°F (40°C). Allow hot battery packs to cool before recharging.
- Lithium-Ion batteries do not develop a "memory" from usage or storage.
- Charger Maintenance:
- Keep the charger clean and free of debris.
- Do not allow foreign material into the recessed cavity or onto contacts.
- Wipe clean with a dry cloth, avoiding solvents or water.
- Unplug the charger when not in use.
- Store at normal room temperature, avoiding direct sunlight or excessive heat.
- Cutting Line Replacement: Instructions are provided for removing the old spool and replacing it with a new pre-wound spool. This involves pressing tabs on the spool cover, removing the old spool, inserting the new one, threading the line, and snapping the cover back into place.
- Battery Disposal: Emphasizes environmentally safe disposal of Lithium-Ion batteries, which contain toxic and corrosive materials. Users are instructed to contact local waste disposal agencies for specific instructions, cover terminals with heavy-duty adhesive tape, and never incinerate or dispose of batteries in regular household trash.
- Troubleshooting: A table is included to address common issues such as the motor failing to start or the unit not starting, providing possible causes (e.g., battery not secure, battery not charged, defective power switch) and solutions.
- Service: Servicing should be performed by a qualified service technician, ideally at an authorized service center, using only identical replacement parts.
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