Form No. 3440-153 Rev A Flex-Force Power System™ 13in or 15in 60V MAX String Trimmer Model No. 51831—Serial No. 320000001 and Up Model No. 51831T—Serial No. 320000001 and Up Register at www.Toro.com.
Safety For assistance, please see www.Toro.com/support for instructional videos or contact 1-888-384-9939 before returning this product.
7. Charge the battery pack with only the battery charger specified by Toro. A charger suitable for 1 type of battery pack may create a risk of fire when used with another battery pack. 8. Charge the battery pack in a well-ventilated area only. 9. Do not expose a battery pack or battery charger to fire or to temperatures higher than 68°C (154°F). 10. Follow all charging instructions and do not charge the battery pack outside of the temperature range specified in the instructions.
7. Do not attempt to service or repair the appliance, battery pack, or battery charger except as indicated in the instructions. Have an Authorized Service Dealer perform service using identical replacement parts to ensure that the product is safely maintained. 8. Store an idle appliance indoors in a place that is dry, secure, and out of the reach of children. 9. Do not dispose of the battery in a fire. The cell may explode. Check with local codes for possible special disposal instructions.
Safety and Instructional Decals Safety decals and instructions are easily visible to the operator and are located near any area of potential danger. Replace any decal that is damaged or missing. decal144-3098 144-3098 decal144-3094 144-3094 1. The battery pack is charging. 3. The battery pack is over or under the appropriate temperature range. 2. The battery pack is fully charged. 4.
decal144-3085 144-3085 decal139-5210 139-5210 1. Warning—read the Operator’s Manual; stay away from moving parts; keep all guards in place; wear eye protection; do not operate in wet conditions. decal140-8475 140-8475 1. Read the Operator’s Manual. 2. Call2Recycle® battery recycling program 3. Keep away from open fire or flames. 4. Do not expose to rain. decal137-9461 137-9461 1.
Setup Loose Parts Use the chart below to verify that all parts have been shipped. Procedure 1 2 3 Description Use Qty. Allen wrench 1 Unfold the handle. Auxiliary handle assembly 1 Install the auxiliary handle. Guard 1 Install the guard. Note: The battery pack is not fully charged when you purchase it. Before using the tool for the first time, refer to Charging the Battery Pack (page 13).
1 Unfolding the Handle Parts needed for this procedure: 1 Allen wrench Procedure 1. Unfold the handle (A of Figure 1). 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 1). Note: The locking button clicks into the slotted hole when the shafts are secured (D of Figure 1). 3. Using the provided Allen wrench, tighten the screw on the shaft connector until it is secure (E of Figure 1).
2 Installing the Auxiliary Handle Parts needed for this procedure: 1 Auxiliary handle assembly Procedure 1. Separate the auxiliary handle from the handle plate by removing the 2 screws (A of Figure 2). 2. Line up the auxiliary handle with auxiliary handle plate on the trimmer handle (B of Figure 2). 3. Secure the auxiliary handle to the handle plate with the 2 previously removed screws (C of Figure 2).
3 Installing the Guard Parts needed for this procedure: 1 Guard Procedure 1. Using the provided Allen wrench, remove the 2 socket head screws, 2 washers, and 2 spacers from the trimmer base (A of Figure 3). 2. Align the guard onto the trimmer base (B of Figure 3). 3. Secure the guard onto the base of the trimmer with the 2 socket head screws, 2 washers, and 2 spacers previously removed (C of Figure 2).
Specifications Product Overview Model 51831/T Rated Voltage 60V DC maximum, 54 VDC nominal usage Charger Type 88602 or 88610 (included with 51831) Battery Type 88620 (included with 51831), 88625, 88640, 88660, or 88675 Appropriate Temperature Ranges Charge/store the battery pack at 5°C (41°F) to 40°C (104°F)* Use the battery pack at -30°C (-22°F) to 49°C (120°F) Use the trimmer at 0°C (32°F) to 49°C (120°F) Store the trimmer at 0°C (32°F) to 49°C (120°F)* *Charging time will increase if yo
Operation Starting the Trimmer 1. Make sure that the vents on the trimmer are clear of any dust and debris. g330416 Figure 8 1. Lockout trigger 2. Run trigger Shutting Off the Trimmer To shut off the trimmer, release both triggers. Whenever you are not using the trimmer or are transporting the trimmer to or from the work area, remove the battery pack.
Charging the Battery Pack Important: The battery pack is not fully charged when you purchase it. Before using the tool for the first time, place the battery pack in the charger and charge it until the LED display indicates the battery pack is fully charged. Read all safety precautions. Note: At any time, press the battery-charge-indicator button on the battery pack to display the current charge (LED indicators). Ensure that the vents on the battery and charger are clear of any dust and debris.
Advancing the Line Using the Bump Feed 1. Run the tool 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 the line by tapping it on the ground.
Adjusting the Cutting Swath The trimmer comes from the factory with a cutting swath of 33.0 cm (13 inches) as shown in A of Figure 12. Refer to the following instructions to adjust the swath to 38.1 cm (15 inches) as shown in D of Figure 12. 1. Remove the swath blade from the bottom of the guard by removing the 2 screws holding it in place using the provided Allen wrench (B of Figure 12) and rotate the swath blade 180°. 2.
Maintenance Replacing the String Important: Use only 2 mm (0.080 inch) After each use of the trimmer, complete the following: 1. Remove the battery from the trimmer. 2. Wipe the trimmer clean with a damp cloth. Do not hose the trimmer down or submerge it in water. monofilament string (the manufacturer Part No. 88201). 1. Remove the battery pack and clean any debris from the trimmer head. 2. Press the tabs simultaneously on the side of the trimmer head and remove cover and spool (Figure 14).
Storage Important: Store the tool, battery pack, and charger only in temperatures that are within the appropriate range; refer to Specifications (page 11). Important: If you are storing the battery pack for the off-season, charge it until 2 or 3 LED indicators turn green on the battery. Do not store a fully charged or fully depleted battery.
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 a similarly qualified specialist if you cannot solve the problem yourself. Problem The tool does not start. Possible Cause Corrective Action 1. The battery is not fully installed in the tool. 1. Remove and then replace the battery into the tool, making sure that it is fully installed and latched. 2.
California Proposition 65 Warning Information What is this warning? You may see a product for sale that has a warning label like the following: WARNING: Cancer and Reproductive Harm—www.p65Warnings.ca.gov. What is Prop 65? Prop 65 applies to any company operating in California, selling products in California, or manufacturing products that may be sold in or brought into California.
