Yard force YF60VRX21-SP

Questions and Answers

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Dakota MartinAug 3, 2025
Why does my Yard Force Lawn Mower fail to start?
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  Eric ChapmanAug 3, 2025
  Your Yard Force Lawn Mower might fail to start due to several reasons: the safety key might not be inserted (insert the safety key); the battery might not be correctly inserted (remove and reinsert the battery); the mower might be standing in high grass (start the motor on shorter grass or an already mowed area, and change the cutting height if necessary); the mower housing might be clogged (clean the housing); or the battery might have no power (check and recharge the battery).
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Theresa AllenAug 8, 2025
Why is grass bag not filling sufficiently on my Yard force YF60VRX21-SP Lawn Mower?
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  kimberlyallenAug 8, 2025
  If the grass bag on your Yard Force Lawn Mower is not filling sufficiently, it could be due to a few reasons: the cutting height might be too low (adjust and increase the cutting height); the lawn or grass might be wet (allow the lawn to dry); the discharge chute or housing might be blocked (clean the discharge chute/housing); the underside of the mower deck might be clogged (clean the underside of the mower deck); or the cutting blade might be worn or damaged (replace it by the customer service center).
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aevansAug 12, 2025
How to fix uneven cuts with Yard Force Lawn Mower?
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  Austin PattonAug 13, 2025
  If your Yard Force Lawn Mower cuts unevenly, it might be because the blade is damaged (sharpen or replace the blade) or the blade is assembled incorrectly (re-assemble the blade correctly).
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Valerie WalkerAug 18, 2025
What to do if Yard Force Lawn Mower stops working?
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  Jason OsbornAug 18, 2025
  If your Yard Force Lawn Mower stops working or loses power, it could be due to several reasons. The cutting height might be improper, so adjust it. The discharge chute or housing could be blocked, so clean it. The cutting blade might be worn or damaged, so replace it with a new blade from a dealer service center. Also, the battery performance might be decreasing or the mower might be overloaded. In this case, check the battery performance and charge it if necessary. Wait until reset occurs and a green light is displayed on the switchbox.
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llewisAug 23, 2025
What to do if Yard Force Lawn Mower vibrating at higher speed?
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  Michael AdamsAug 23, 2025
  If your Yard Force Lawn Mower is vibrating at a higher speed, it could be that the cutting blade is unbalanced (balance the blade by grinding each cutting edge equally) or the blade is loosened or incorrectly fitted (tighten the blade bolt).
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Jennifer TuckerAug 28, 2025
Why Yard Force Lawn Mower does not mulch properly?
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  Michael WolfAug 28, 2025
  Your Yard Force Lawn Mower might not mulch properly if the cutting height is set too low (adjust the cutting height) or if there is wet grass on the underside of the deck (clean the underside of the deck and wait until the grass is dry).

Summary

PRODUCT OVERVIEW

Product Parts Description

Lists all components of the lawn mower with corresponding figure references.

Delivery Contents

Details all items included in the product packaging with quantity.

SAFETY SYMBOLS

Understanding Safety Symbols

Explains the purpose and meaning of safety symbols for danger prevention.

General Safety Warnings

Emphasizes reading all safety instructions and symbols before use.

WARNING SYMBOLS

Battery Pack Warnings

Details warnings for battery handling, disposal, and environmental exposure.

Charger Warnings

Explains charger safety, including indoor use and electrical limits.

IMPORTANT SAFETY INSTRUCTIONS

Safety Rules for Lawn Mower

Basic safety precautions to reduce risk of injury, electric shock, and fire.

User Training and Preparation

Guidelines for user training, operator age, and preparing the work area.

OPERATION GUIDELINES

General Operation

Provides instructions for safe and proper operation of the lawn mower.

Charger Safety

Safety instructions specific to the battery charger and its use.

MAINTENANCE, STORAGE & BATTERY SAFETY

Battery Pack Safety

Safety rules for handling, charging, and storing the Li-ion battery pack.

General Maintenance & Storage

Instructions for cleaning, upkeep, storing the mower, and blade servicing.

Battery Care and Longevity

Procedures for optimal usage and longevity of the battery pack.

RESIDUAL RISKS AND ASSEMBLY

Understanding Residual Risks

Details potential risks associated with product use and electromagnetic fields.

Mower Assembly

Step-by-step instructions for assembling the mower handle, bag, and accessories.

Mower Function Conversion

Explains how to switch between mulching, bagging, and side discharge modes.

ADJUSTMENT AND OPERATION

Adjusting Cutting Height

Instructions for adjusting the mower's cutting height.

Starting and Stopping

Guides for inserting battery, using safety key, and turning the mower on/off.

Self-Propel Operation

How to use the self-propel function while cutting grass.

OPERATION DETAILS

Slope Operation

Safety and operational advice for mowing on slopes.

Protection Systems

Explains mower overload and battery overheat protection mechanisms.

Grass Bag and Battery Management

Instructions for emptying the grass bag and charging the battery pack.

Battery Information

Details battery indicators and tips for maximizing battery life.

MAINTENANCE AND STORAGE

Cleaning and General Maintenance

Instructions for cleaning, general upkeep, and parts inspection.

Blade Replacement

Guidance on replacing the mower blade for safety and performance.

Battery Care

Procedures for optimal usage and longevity of the battery pack.

Storage and Transport

Instructions for storing and safely transporting the mower.

TROUBLESHOOTING

Mower Start and Power Issues

Troubleshooting steps for mower not starting or losing power.

Cutting and Grass Bag Problems

Solutions for grass bag filling, uneven cutting, and mulching problems.

Vibration and Blade Issues

Addressing excessive vibration and blade-related problems.

WARRANTY INFORMATION

Product and Accessory Warranty

Details warranty coverage, periods, and conditions for the mower and accessories.

Warranty Claims Process

Steps for contacting support and initiating a warranty claim.

CUSTOMER SUPPORT

Need Help?

Contact details and assistance areas for customer support.

Online Resources

Information on accessing manuals and product details online via the website.

This document is an operator's manual for the YARD FORCE 21" Cordless Lawn Mower, model YF60VRX21-SP. It is a 3-in-1 self-propelled lawn mower designed for outdoor power equipment use.

Function Description:

The YF60VRX21-SP is a cordless lawn mower primarily designed for cutting lawn areas in private homes and hobby gardens. It offers three main functions:

Rear Bagging: Grass is cut and collected into the attached grass bag.
Mulching: Grass is cut into small pieces, which then degrade and fertilize the lawn. This function requires the mulching plug to be installed.
Side Discharge: Grass is cut and distributed to the side of the machine. This function requires the side discharge deflector to be installed.

The self-propelled feature allows the machine to move automatically, reducing effort for the operator. The mower is powered by a 60V Li-ion battery pack.

Important Technical Specifications:

Item No.: YF60VRX21-SP
Voltage/Capacity: 60 V d.c. / 4.0 Ah Li-ion
Deck Size: 21"
Cutting Size: 20"
Cutting Height: 7 positions, ranging from 1.25" to 3.75"
Self-Propelled: Yes
Grass Bag Capacity: 2.0 Bushels / 65L
No-load Speed: 3100 RPM
Booster Function: Yes (3500 RPM)
Wheel Size: 8" Front / 12" Rear
Charger Input: 100~240 V, 50/60 Hz, Output: 63 V d.c., 4.0 A
Charging Time: 60 Minutes
Weight: 86 lbs
Battery Pack Type: YF60VRX4.0-BAT (compatible with YF60VRX2.5-BAT)
Charger Type: YF60VRX4A-CHG (compatible with YF60VRX2A-CHG)

Usage Features:

Assembly: The manual provides detailed instructions for installing the handle (lower and upper), fitting cable clips, assembling the grass bag, installing the mulching plug, and installing the side discharge deflector. The handle height can be adjusted using corresponding holes on the brackets.
Cutting Height Adjustment: The cutting height is centrally adjusted via a knob with 7 positions, from 1.25" to 3.75". The operator pulls the handle outwards, moves it to the desired height, and returns it to secure the lever.
Battery Insertion and Removal: The battery pack is inserted into the receptacle by aligning grooves and depressing until locked. Removal involves opening the guard, depressing the releasing/locking button, and lifting the pack.
Safety Key: The mower is equipped with a safety key that disables the machine when removed, preventing accidental startup.
Starting the Mower: To switch ON, the operator must depress and hold the safety lock button while pulling the operator presence control bar towards the handle. The motor will start, and the blade will rotate. The safety lock button can then be released.
Stopping the Mower: To switch OFF, simply release the operator presence control bar. The blade will continue to rotate for several seconds after the tool is switched off.
Self-Propelled Function: After starting the mower, the self-propel switch lever can be engaged while holding the operator presence control bar, causing the machine to move automatically. Releasing the self-propel bail stops the movement.
Operation on Slopes: Caution is advised when operating on slopes. Mow across the face of slopes, never up and down. Exercise extreme caution when changing direction. Avoid excessively steep slopes.
Overload Protection: The mower has overload protection. If the motor is overloaded, it will shut down. The operator should clean the discharge chute/housing and restart.
Battery Charging: The battery charger is for indoor use only. It is designed for standard household 100-240 V, 50/60 Hz power sources. The charger indicates charging status with LED lights (flashing green for charging, solid green for complete). Charging time is approximately 60 minutes for the 4.0 Ah battery.
Battery Temperature Protection: The battery pack cannot be charged if its temperature is below 41°F or above 113°F. It is recommended to charge the battery at normal room temperature (around 68°F) for optimal life and performance.

Maintenance Features:

General Maintenance: Keep all nuts, bolts, and screws tight. Frequently check the grass collector for wear. Allow the product to cool down before storing.
Blade Maintenance: The blade, blade bolt, and blade assembly should be visually inspected for wear or damage before each use. Worn or damaged components should be replaced in sets to preserve balance. When servicing blades, be aware that they can still move even when the power source is switched off. The manual provides instructions for removing and installing the blade, emphasizing the use of heavy gloves and correct torque for re-tightening. Blades should be re-sharpened or replaced at the end of the mowing season by a customer service center to prevent imbalance.
Cleaning: Remove accumulated dust and debris with a soft brush. Wipe down the enclosure with a damp cloth. Do not spray the unit with water.
Battery Maintenance: Protect the battery from moisture and water. Store within a temperature range of 31°F to 113°F, avoiding direct sunlight. Clean the battery occasionally with a soft, clean, dry brush. For long-term storage, charge and discharge the battery pack once every 6 months to prolong its life.
Charger Maintenance: Do not open the battery charger; it contains no customer-serviceable parts. Protect it from rain and moisture.
Storage and Transport: After cleaning and cooling, store the unit in a dry room. The handles can be folded down for compact storage by releasing quick-release levers and positioning the lower handle lock pin. Remove the safety key and battery packs before storage. Use original packaging for transport whenever possible.

Safety Information:

The manual emphasizes reading and understanding all safety instructions, including warnings about rotating blades, thrown objects, electric shock, and proper use on slopes. It highlights the importance of wearing safety glasses, ear protection, and gloves. It also warns against operating the mower in wet conditions, near children or animals, or when tired. The battery contains lead and lead compounds, requiring hand washing after handling.