GreenWorks 27022 - User Manual

Questions and Answers

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bushstephanieJul 26, 2025
Why are my GreenWorks 27022 dethatching results not satisfactory?
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  Erika FlowersJul 26, 2025
  If you're experiencing unsatisfactory dethatching results with your GreenWorks Lawn and Garden Equipment, it could be due to spring tine wear, a faulty cog belt, or the lawn being too tall. To resolve this, adjust the dethatcher cylinder. If the cog belt is faulty, contact an authorized service center. If the lawn has grown too tall, mow it before using the dethatcher.
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Sarah LopezJul 31, 2025
What to do if GreenWorks 27022 Lawn and Garden Equipment motor cuts out?
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  Tina Fox DDSJul 31, 2025
  If your GreenWorks Lawn and Garden Equipment motor cuts out, it may be due to being blocked by foreign objects or the dethatcher depth being too low. First, switch off the motor, remove the plug from the socket, and wait until the dethatcher has stopped rotating. Remove any foreign objects. If the cylinder has been adjusted for wear without actual wear to the tines, wait approximately 1 minute, then switch on the dethatcher. Also, ensure that the grass is not too tall; mow the lawn before dethatching.
R
Ryan MurrayAug 6, 2025
How to fix abnormal noise in GreenWorks Lawn and Garden Equipment?
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  Jennifer IngramAug 6, 2025
  If your GreenWorks Lawn and Garden Equipment is making abnormal noises, it's likely due to foreign objects hitting or blocking the dethatcher cylinder. Switch off the dethatcher, remove the power cord from the outlet, and wait until the cylinder has stopped rotating. Then, remove any foreign objects.
J
johnsonjamesAug 11, 2025
Why does my GreenWorks 27022 Lawn and Garden Equipment make a whistling sound?
- P
  petersonjennaAug 11, 2025
  A whistling sound in your GreenWorks Lawn and Garden Equipment usually indicates a slipping cog belt. Contact an authorized service center to address this issue.
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Sabrina DickersonAug 15, 2025
What to do if GreenWorks Lawn and Garden Equipment motor will not start?
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  johnshafferAug 15, 2025
  If the motor of your GreenWorks Lawn and Garden Equipment will not start, it may be due to a faulty cable or the conductor cross-section of the extension cable being too low. Contact your electrician to resolve this issue.
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Alexis VelazquezAug 21, 2025
Why is my GreenWorks 27022 making abnormal noise?
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  Mark ValdezAug 21, 2025
  Abnormal noise in your GreenWorks Lawn and Garden Equipment can be caused by: * Foreign objects hitting the dethatcher cylinder: Switch off the dethatcher, remove the power cord from the outlet, and wait until the cylinder has stopped rotating. Then, remove any foreign objects. * Foreign objects blocking the dethatching cylinder: Remove any foreign objects.

Summary

IMPORTANT SAFETY INSTRUCTIONS

General Operation Safety

Covers safe use, avoiding hazards, proper attire, and handling the tool correctly.

Servicing and Replacement Parts

Emphasizes using identical parts for servicing and potential hazards.

Personal Protective Equipment

Stresses the importance of wearing safety goggles or glasses with side shields.

SPECIFIC SAFETY RULES

Usage Environment and Extension Cords

Details safe operating conditions, noise, dust, and proper extension cord usage.

ELECTRICAL

Outdoor Use and Extension Cord Guidelines

Warns against outdoor use in wet conditions and provides extension cord selection criteria.

Electrical Connection and Wiring

MAINTENANCE

Replacing Tines

Step-by-step guide for removing and replacing the tines.

This document is an owner's manual for the Greenworks 14" 10A Electric Dethatcher, model 27022. It provides comprehensive instructions for safe operation, assembly, maintenance, and troubleshooting of the device.

Function Description

The Greenworks 14" 10A Electric Dethatcher is designed for outdoor use to remove thatch from lawns. Thatch is a layer of dead grass, roots, and other organic matter that accumulates between the soil surface and the green grass blades. Excessive thatch can prevent water, nutrients, and air from reaching the soil, hindering healthy lawn growth. This dethatcher uses rotating tines to loosen and lift thatch, allowing for better absorption of essential elements and promoting a healthier lawn.

Important Technical Specifications

Motor: 120 V, AC only, 60 Hz, 10 Amps
Speed: 3,700 RPM
Aerating Path: 14 inches
Unit Weight: 25.92 lbs.
Depth Adjustment: 3-position depth adjustment knobs, offering settings for approximately 1 mm above ground (Setting "I" for transport), 1/8" (3 mm) (Setting "II" for middle dethatching), and 3/8" (10 mm) (Setting "III" for low dethatching).
Extension Cord Requirements:
- For lengths up to 25' (7.6 m) with 0-10 Amp rating: 18 AWG.
- For lengths up to 50' (15 m) with 0-6 Amp rating: 18 AWG; 6-10 Amp rating: 16 AWG; 10-12 Amp rating: 16 AWG.
- For lengths up to 100' (30.4 m) with 0-6 Amp rating: 16 AWG; 6-10 Amp rating: 14 AWG; 10-12 Amp rating: 14 AWG.
- For lengths up to 150' (45.7 m) with 0-6 Amp rating: 14 AWG; 6-10 Amp rating: 12 AWG; 10-12 Amp rating: Not Recommended.
- A separate electrical circuit of at least #12 wire, protected with a 15 A time-delayed fuse, is recommended.
Safety Certifications: C US 218549 (indicating compliance with safety standards for the United States and Canada).
Warranty: Limited Four-Year Warranty for defects in materials, parts, or workmanship under personal use.

Usage Features

Starting and Stopping: The dethatcher is started by pressing and holding the Power button, then pulling the bale switch upward to the handlebar. Releasing the bale switch stops the operation.
Circuit Breaker: Equipped with a circuit breaker to protect against short-circuit overloads. If the switch pops out, release the trigger, allow the dethatcher to cool for a minute, and then press the circuit breaker to reset. If it pops out again, allow 15-30 minutes for cooling.
Cord Retainer: Features a cord retainer to prevent the extension cord from disconnecting during use. The extension cord should be folded into a tight loop, pushed through the bottom hole of the retainer, and then slid over the retaining clip until secured.
Depth Adjustment: The dethatching depth is adjusted by turning the hubcaps. There are three settings: "I" for transport (approx. 1 mm above ground), "II" for middle dethatching (approx. 1/8" or 3 mm), and "III" for low dethatching (approx. 3/8" or 10 mm). It is recommended to start at the highest setting ("I") and adjust lower as tines wear down.
Operation Guidelines:
- The lawn should be mowed to approximately 2" (0.05 m) before dethatching to prolong tine life and prevent motor overload.
- Always pull the dethatcher forward; do not pull it backward while in use.
- Do not dethatch on slopes greater than 15 degrees.
- Keep people and pets at least 50' (15 m) away from the dethatcher during use.
- Wear eye protection, hearing protection, and a dust mask during operation.
- Avoid using in wet or damp conditions or exposing to rain.
- Do not use in the presence of flammable liquids or gases.

Maintenance Features

Tine Replacement: The tines are replaceable. To replace, disconnect from power, turn the dethatcher over, remove the two star-shaped screws, flat washer, and lock washer securing the tine casing, and remove the two nuts on the opposite side. Press the locker on the shaft edge with a slotted screwdriver to separate the tine casing. Worn or broken tines can then be replaced, ensuring flat and lock washers are used on threads when reassembling.
Tine Cartridge Replacement: The entire tine cartridge can be removed and replaced. After removing the cartridge, individual tines can be pushed out using a screwdriver (and potentially a rubber mallet) and new tines inserted, securing them with the pin.
Cleaning: The dethatcher should be cleaned after each use and before storage. Use a clean cloth to remove dirt, dust, oil, and grease. Do not use solvents, brake fluids, gasoline, petroleum-based products, or other petroleum products, as they can damage plastic parts. Do not clean with running water or high pressure.
Storage: For storage, the lawn dethatcher can be folded up by releasing the wing nuts. Ensure the power cable does not get trapped during this process. Store the dethatcher in a dry, closed room inaccessible to children.
General Inspection: Regularly inspect all tines and cartridges for damage and replace as needed. Check for proper alignment of moving parts, binding, breakage, or any other conditions that may affect operation.
Authorized Service: For servicing beyond routine maintenance or if the circuit breaker continues to trip, contact Greenworks customer service at 1-888-909-6757. Only identical replacement parts should be used for servicing.