Toro 14in or 16in 60V MAX String Trimmer Operator's Manual

Introduction

This trimmer is intended for use by residential homeowners to trim grass outdoors. It is designed for adult use only and is compatible with the Toro Flex-Force Power System 60V MAX Attachment-Capable Power Head Model 51810T. Using this product for purposes other than its intended use could be dangerous.

Read this manual carefully to learn how to operate and maintain your product properly and to avoid injury and product damage. You are responsible for operating the product safely.

For assistance, instructional videos, or to contact an Authorized Service Dealer, visit www.Toro.com/support. For product safety and operation training materials, accessory information, finding a dealer, or registering your product, visit www.Toro.com.

CALIFORNIA Proposition 65 Warning: The power cord on this product contains lead, a chemical known to the State of California to cause birth defects or other reproductive harm. Wash hands after handling. Use of this product may cause exposure to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

Safety Information

Safety-Alert Symbol

The safety-alert symbol (⚠️) shown in this manual and on the machine identifies important safety messages. The symbol appears above information that alerts you to unsafe actions or situations and is followed by the word DANGER, WARNING, or CAUTION.

• DANGER: Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.
• WARNING: Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.
• CAUTION: Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury.

Important: Calls attention to special mechanical information.

Note: Emphasizes general information worthy of special attention.

IMPORTANT SAFETY INSTRUCTIONS

When using electric gardening tools, always read and follow basic safety warnings and instructions to reduce the risk of fire, electric shock, and personal injury.

I. Training

1. The operator is responsible for any accidents or hazards occurring to others or their property.
2. Do not allow children to use or play with the tool, battery pack, or battery charger.
3. Do not allow children or untrained people to operate or service this device. Only allow responsible, trained, familiar, and physically capable individuals to operate or service the device.
4. Before using the tool, battery pack, and battery charger, read all instructions and cautionary markings.
5. Become familiar with the controls and proper use of the tool, battery pack, and battery charger.

II. Preparation

1. Keep bystanders and children away from the operating area.
2. Use only the battery pack specified by Toro. Other accessories and attachments may increase the risk of injury and fire.
3. Plugging the battery charger into an outlet that is not 120 V can cause a fire or electric shock. Use an attachment plug adapter if needed for a different style of connection.
4. Do not use a damaged or modified battery pack or charger, as it may exhibit unpredictable behavior.
5. If the battery charger supply cord is damaged, contact an Authorized Service Dealer.
6. Charge the battery pack only with the specified Toro battery charger.
7. Charge the battery pack in a well-ventilated area.
8. Follow all charging instructions and do not charge outside the specified temperature range to avoid damaging the battery pack and increasing fire risk.
9. Do not operate the tool without all guards and safety devices in place and functioning properly.
10. Dress properly: wear eye protection, long pants, substantial slip-resistant footwear, rubber gloves, and hearing protection. Tie back long hair and avoid loose clothing or jewelry that can get caught in moving parts. Wear a dust mask in dusty conditions.

III. Operation

1. Avoid dangerous environments: do not use the tool in rain or in damp or wet locations.
2. Use the proper tool for your application; using it for unintended purposes could be dangerous.
3. Prevent unintentional starting: ensure the switch is in the OFF position before connecting the battery pack and handling the tool. Do not carry the tool with your finger on the switch or energize it with the switch in the ON position.
4. Operate the tool only in daylight or good artificial light.
5. If the tool strikes an object or vibrates excessively, immediately shut it off, wait for moving parts to stop, and disconnect the battery before examining for damage. Make necessary repairs before resuming operation.
6. Remove the battery pack before adjusting or changing accessories.
7. Keep hands and feet away from the cutting area and all moving parts.
8. Shut off the tool, remove the battery pack, and wait for all movement to stop before adjusting, servicing, cleaning, or storing.
9. Remove the battery pack when leaving the tool unattended.
10. Do not force the tool; allow it to do the job at its designed rate.
11. Do not overreach; maintain proper footing and balance, especially on slopes. Walk, do not run.
12. Stay alert; use common sense. Do not use the tool while ill, tired, or under the influence of alcohol or drugs.
13. Ensure ventilation openings are clear of debris.
14. Under abusive conditions, the battery pack may eject liquid; avoid contact. If contact occurs, flush with water; if in eyes, seek medical help. Ejected liquid may cause irritation or burns.
15. Do not expose a battery pack or tool to fire or excessive temperature (above 130°C / 265°F), as this may cause explosion.
16. CAUTION: A mistreated battery pack may present a risk of fire, explosion, or chemical burn. Do not disassemble the battery pack. Replace with a genuine Toro battery pack only. Keep battery packs out of reach of children.

IV. Maintenance and Storage

1. Maintain the tool with care: keep it clean and in good repair. Keep handles dry, clean, and free from oil and grease.
2. When the battery pack is not in use, keep it away from metal objects like paper clips, coins, keys, nails, and screws to prevent shorting terminals, which may cause burns or fire.
3. Keep hands and feet away from moving parts.
4. Shut off the tool, remove the battery pack, and wait for all movement to stop before adjusting, servicing, cleaning, or storing.
5. Check the tool for damaged parts. Have an Authorized Service Dealer repair or replace damaged guards or parts.
6. Do not replace the existing non-metallic cutting means with a metallic cutting means.
7. Do not attempt to service or repair the tool, battery pack, or charger except as indicated. Have an Authorized Service Dealer perform service using identical replacement parts.
8. Store an idle tool indoors in a dry, secure place out of the reach of children.
9. Do not dispose of the battery in a fire, as the cell may explode. Check local codes for disposal instructions.

SAVE THESE INSTRUCTIONS

Compatibility

The Model 51810T Power Head is compatible with various Toro-approved attachments. The following table details compatibility and standards:

Setup

Connecting the Attachment to the Power Head

No Parts Required.

Procedure:

1. Install the square shaft of the attachment into the square shaft of the power head (A of Figure 3).
2. Align the locking button on the lower shaft with the slotted hole on the upper shaft and slide the 2 shafts together (B and C of Figure 3).
3. The locking button clicks into the slotted hole when the shafts are secured (C of Figure 3).
4. Using the screw-handle, tighten the screw on the shaft connector until it is secure (D of Figure 3).

Figure 3 Description: Diagrams illustrate the attachment connection process. (A) Inserting the square shaft. (B) Aligning the locking button and slotted hole. (C) Locking button clicking into place. (D) Tightening the screw handle.

Installing the Guard

Parts needed: 1 Guard, 4 Washers, 4 Bolts.

Procedure:

1. Align the trimmer guard beneath the guard mount as shown in Figure 4.
2. Secure the guard to the trimmer using the 4 washers and 4 bolts as shown in Figure 4.

Figure 4 Description: Diagram shows the trimmer guard being aligned with the guard mount and secured with washers and bolts.

Product Overview

Figure 5 Description: Diagram of the trimmer head assembly with labels pointing to the guard (1), string (2), and bump button (3).

Specifications

Appropriate Temperature Ranges

*Charging time will increase if you do not charge the battery within this range.

Store the tool, battery pack, and battery charger in an enclosed clean, dry area.

Operation

Starting the Attachment

1. Ensure that the vents on the attachment, power head, and battery are clear of dust and debris.
2. Align the cavity in the battery pack with the tongue on the handle housing (Figure 6).
3. Push the battery pack into the handle until the battery locks into the latch.

Figure 6 Description: Diagram shows a battery pack being inserted into the power head handle.

To start the attachment: Press the lockout button, then squeeze the run trigger (Figure 7).

Note: Slide the 2-speed switch to change the speed of the attachment.

Figure 7 Description: Diagram of the trimmer handle shows the lockout button (1), the 2-speed switch, and the run trigger (3).

Shutting Off the Trimmer

To shut off the trimmer, release the trigger. Whenever you are not using the trimmer or are transporting it, remove the battery pack.

Removing the Battery Pack from the Power Head

Press the battery latch on the machine to release the battery pack and slide it out (Figure 8).

Figure 8 Description: Diagram shows the battery pack being released from the power head using the battery latch (1).

Removing the Attachment from the Power Head

1. Ensure the battery pack is removed from the power head.
2. Loosen the screw-handle on the shaft connector (Figure 3).
3. Press the locking button down while pulling the 2 shafts apart (Figure 3).

Advancing the Line Using the Bump Feed

1. Run the trimmer at full throttle.
2. Tap the bump button on the ground to advance the line. The line advances each time the bump button is tapped. Do not hold the bump button on the ground.

Note: The line trimming cut-off blade on the grass deflector cuts the line to the correct length.

Note: If the line is worn too short, you may not be able to advance it by tapping the bump button. If so, release the trigger and refer to Advancing the Line Manually.

Figure 9 Description: Diagram of the trimmer head shows the bump button (1) and indicates the action of tapping it on the ground to advance the line.

Advancing the Line Manually

Remove the battery pack, then push the bump button at the base of the spool retainer while pulling on the trimmer line to manually advance the line.

Adjusting the Cutting Swath

The trimmer comes with a cutting swath of 36.6 cm (14 inches). To adjust to 40.6 cm (16 inches):

1. Remove the swath blade from the bottom of the guard by removing the 2 screws using the provided Allen wrench (B of Figure 10) and rotate the swath blade 180°.
2. Install the rotated swath blade onto the guard using the 2 screws previously removed (C of Figure 10).

Figure 10 Description: Diagrams A, B, C, D illustrate adjusting the cutting swath. (A) 14-inch swath. (B) Removing screws. (C) Reattaching blade. (D) 16-inch swath.

Operating Tips

• Keep the trimmer tilted toward the area being cut for the best cutting area.
• The string trimmer cuts when moved from right to left, preventing debris from being thrown at you.
• Use the tip of the string for cutting; do not force the string head into uncut grass.
• Wire and picket fences, stone and brick walls, curbs, and wood can cause the string to wear rapidly and break.
• Avoid trees and shrubs, as the string can easily damage tree bark, wood moldings, siding, and fence posts.

Figure 11 Description: Diagram shows the trimmer in use with arrows indicating the direction of rotation (1) and the string path (2) for optimal cutting.

Maintenance

After each use of the trimmer:

1. Remove the battery from the power head.
2. Wipe the trimmer clean with a damp cloth. Do not hose or submerge the trimmer in water.

CAUTION: The line cutoff blade on the deflector is sharp and can cut you. Do not use your hands to clean the deflector shield and blade.

3. Wipe or scrape clean the cutting head area if debris accumulates.
4. Check and tighten all fasteners. Repair or replace any damaged or lost parts.
5. Brush debris away from air intake vents and exhaust on the motor housing to prevent the motor from overheating.

Replacing the String

Important: Use only 2 mm (0.080 inch) diameter monofilament string (Part No. 88611) or 2.4 mm (0.095 inch) diameter twisted monofilament string (Part No. 88202).

1. Remove the battery pack and clean any debris from the trimmer head.
2. Remove old string by repeatedly pressing the bump button while pulling the line out equally from both sides.
3. Cut string: 4.9 m (16 ft) for 2 mm string; 3 m (10 ft) for 2.4 mm twisted string.

Important: Do not use any other gauge or type of string, and do not exceed the recommended length, as this could damage the trimmer.

4. Press and turn the knob on the string head until its arrow aligns with the arrow on the string head (Figure 12).
5. Insert one end of the line into the LINE IN eyelet and push it through the string head track until it exits the eyelet on the other side. Pull the line until it is evenly divided on each side.

Important: Do not disassemble the trimmer head.

6. Hold the string head in place with one hand. With your other hand, rotate the knob clockwise.
7. Wind the line, leaving about 102 mm (4 inches) extending beyond the eyelet on each side.

Figure 12 Description: Diagrams show the string head mechanism for replacing string. Shows arrows (1) on the knob (2) aligning with the string head (3), the LINE IN eyelet, and the string (5) being wound.

Lubricating the Gearbox

Service Interval: Every 25 hours or monthly, whichever comes first.

1. Shut off the trimmer, remove the battery pack, and clean debris from the trimmer head.
2. Set the trimmer so the gearbox is upright.
3. Remove the plug from the side of the trimmer (Figure 13).

Figure 13 Description: Diagram shows the side of the trimmer head with an arrow pointing to the gearbox plug (1).

4. Apply a small amount of grease into the gearbox using a grease gun.
5. Note: Use No. 2 lithium grease.
6. Install the gearbox plug.

Storage

Important: Store the machine, battery pack, and charger only in temperatures within the appropriate range (refer to Specifications, page 14).

Important: If storing the machine for a year or longer, remove the battery pack and charge it until 1 or 2 LED indicators turn green. Do not store a fully charged or fully depleted battery. When ready to use again, charge until the left indicator light on the charger turns green or all 4 LED indicators on the battery turn green.

• Disconnect the machine from the power supply (remove battery pack) and check for damage after use.
• Clean all foreign material from the machine.
• Do not store the machine or charger with the battery pack installed.
• When not in use, store the machine, battery pack, and charger out of the reach of children.
• Keep the machine, battery pack, and charger away from corrosive agents like garden chemicals and de-icing salts.
• To reduce the risk of serious personal injury, do not store the battery pack outside or in vehicles.
• Store the machine, battery pack, and charger in an enclosed clean, dry area.

Troubleshooting

Perform only the steps described in these instructions. All further inspection, maintenance, and repair work must be performed by an authorized service center or qualified specialist if you cannot solve the problem yourself. Always remove the battery from the tool when troubleshooting, inspecting, maintaining, or cleaning.

California Proposition 65 Warning Information

You may see a product for sale with a warning label like the following: WARNING: Cancer and Reproductive Harm--www.p65Warnings.ca.gov.

What is Prop 65?

Prop 65 applies to companies operating in or selling products in California. It mandates a list of chemicals known to cause cancer, birth defects, and/or other reproductive harm. The list is updated annually and includes hundreds of chemicals found in everyday items. The purpose is to inform the public about exposure to these chemicals.

Prop 65 does not ban products containing these chemicals but requires warnings on products, packaging, or literature. A Prop 65 warning does not mean a product violates safety standards. The California government clarifies that a Prop 65 warning is not a decision that a product is 'safe' or 'unsafe.' Many chemicals have been used for years without documented harm. For more information, go to https://oag.ca.gov/prop65/faqs-view-all.

A Prop 65 warning means a company has either (1) evaluated exposure and concluded it exceeds the "no significant risk level"; or (2) has chosen to provide a warning based on its understanding of a listed chemical's presence without evaluating exposure.

Does this law apply everywhere?

Prop 65 warnings are required under California law only. They are seen throughout California in various settings and on many products. Some online and mail order retailers also provide these warnings.

How do the California warnings compare to federal limits?

Prop 65 standards are often more stringent than federal and international standards. For example, the Prop 65 standard for warnings for lead is 0.5 µg/day, well below federal limits.

Why don't all similar products carry the warning?

• Products sold in California require Prop 65 labeling, while similar products sold elsewhere may not.
• Companies involved in Prop 65 lawsuits may be required to use warnings, while others may not.
• Enforcement of Prop 65 is inconsistent.
• Companies may choose not to provide warnings if they believe they are not required to, but a lack of warnings does not mean a product is free of listed chemicals.

Why does Toro include this warning?

Toro provides warnings to give consumers information to make informed decisions. Toro provides warnings based on its knowledge of chemical presence, even if exposure levels are negligible or within the "no significant risk" range. This is done out of an abundance of caution, as not providing warnings could lead to lawsuits and penalties.