Form No. 3438-313 Rev C Flex-Force Power System™ 16in (41cm) 60V MAX Chainsaw Model No. 51850—Serial No. 320000001 and Up Model No. 51850T—Serial No. 320000001 and Up Register at www.Toro.com.
Dealer or Toro Customer Service and have the model and serial numbers of your product ready. Figure 1 identifies the location of the model and serial numbers on the product. Write the numbers in the space provided. For assistance, please see www.Toro.com/support for instructional videos or contact 1-888-384-9939 before returning this product.
Contents Important: With your mobile device, you can scan the QR code (if equipped) on the serial number plate to access warranty, parts, and other product information. Safety ....................................................................... 4 Personal Protective Equipment .......................... 6 Safety and Instructional Decals .......................... 7 Setup ........................................................................ 9 Mounting the Battery Charger (Optional).............
Safety left attached to a rotating part of the power tool may result in personal injury. 5. Do not overreach. Keep proper footing and balance at all times. This enables better control of the power tool in unexpected situations. 6. Dress properly. Do not wear loose clothing or jewelry. Keep your hair, clothing, and gloves away from moving parts. Loose clothes, jewelry, or long hair can get caught in moving parts. 7.
IV. Battery tool use and care 1. Recharge only with the charger specified by the manufacturer. A charger that is suitable for one type of battery pack may create a risk of fire when used with another battery pack. 2. Use power tools only with specifically designated battery packs. Use of any other battery packs may create a risk of injury and fire. 3.
11. Keep handles dry, clean, and free from oil and grease. Greasy, oily handles are slippery causing loss of control. 12. Cut wood only. Do not use chain saw for purposes not intended. For example: do not use chain saw for cutting plastic, masonry or non-wood building materials. Use of the chain saw for operations different than intended could result in a hazardous situation. 13. Avoid kickback.
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. decal140-2162 140-2162 1. Read the Operator’s Manual. 6. Stay away from moving parts. 2. Wear hearing protection. 7. Keep all guards and shields in place. 3. Wear eye protection. 8. Do not contact objects with the guide bar tip; tip contact can cause serious personal injury. 4. Do not expose to rain. 9.
decal137-9462 137-9462 decal137-9463 137-9463 1. The battery pack is charging. 2. The battery pack is fully charged. 3. The battery pack is over or under the appropriate temperature range. 4. Battery pack charging fault decal137-9461 137-9461 1.
Setup Product Overview Important: The battery pack is not fully charged when it is purchased. Before using the machine for the first time, refer to Charging the Battery Pack (page 18). Mounting the Battery Charger (Optional) g315699 If desired, mount the battery charger securely on a wall using the wall-mount key holes on the back of the charger. Figure 5 Left side shown Mount it indoors (such as a garage or other dry place), near a power outlet, and out of the reach of children.
Specifications Operation Model 51850/51850T Bar Length (with 88613 and 88614 equipped) 40.6 cm (16 inches) Before Using the Chain Saw Chain Gauge (with 88613 and 88614 equipped) 0.043 inches Before using the chain saw, do the following: Chain Pitch (with 88613 and 88614 equipped) 3/8 inch Chain Length (with 88613 and 88614 equipped) 56 links Rated Voltage 60V DC maximum, 54 VDC nominal usage Weight (without a battery) 4.35 kg (9.
Starting the Chain Saw 1. Ensure that the vents on the chain saw are free from dust and debris (Figure 8). g315703 Figure 10 1. Chain brake (OPERATING position) g315701 7. Figure 8 1. Side vent 2. Bottom vent 2. Set the chain saw down on a level surface. 3. Align the tongue of the battery pack with the battery cavity in the chain saw (Figure 9). 2.
Cutting with the Chain Saw WARNING Operating a chain saw improperly can cause serious personal injury or death. Read and follow all operating instructions carefully to avoid possible personal injury. WARNING g025213 Figure 13 Kickback can cause serious or fatal injury to you. Always ensure that the chain brake system is working properly before you operate the chain saw. 2. Stand on solid, even ground in front of the wood to be cut. 3.
Pruning a Tree WARNING Cutting higher limbs from a tree off the ground can put you in an unstable position that could be unsafe for you while handling a chain saw, resulting in possible serious personal injury or death to you or bystanders. When cutting limbs from a standing tree, use the following practices: • Do not climb on limbs or branches with a chain saw. • Do not overreach, and cut with both hands on the chain saw.
Note: Making this cut prevents the chain saw from being pinched while making the next cut. g228707 Figure 18 g195831 Figure 16 1. 2. 1. First cut 3. Hinge 2. Second cut 4. Back cut 5. Determine the direction that the tree will fall. Take the following variables into consideration: • Wind direction • Heavier limbs on 1 side of the tree • Natural tilt of the tree (if any) Make a second cut to form a notch, starting the cut at least 5 cm (2 inches) above and away from the first cut (Figure 18).
Limbing a Fallen Tree 1. Grip the chain saw as shown in Figure 13. 2. Moving from the base of the tree up, cut off the smaller limbs from the tree that are not supporting its weight off the ground (Figure 19). 3. Cut the larger limbs that support the weight of the tree from the bottom upward so that the limbs do not pinch the saw blade (Figure 20).
Bucking a Log When bucking a log, note where the log is supported and where there is a load on the log. Cut the log so that when the ends fall, your guide bar will not be pinched between them. Important: If the chain saw binds in the cut, do not attempt to free it by running the motor. Shut off the saw, then use a wedge to pry open the cut and release the saw. If you are cutting branches from a fallen tree or cutting a log into lengths, support the log off the ground (preferably on a sawbuck).
Installing the Battery Pack Removing the Battery Pack Important: Use the battery pack only in 1. Place the chain saw on a flat surface. temperatures that are within the appropriate range; refer to Specifications (page 10). 2. Press down on the latch and remove the battery pack from the cavity. 1. Set the chain saw down on a level surface. 2. Align the tongue of the battery pack with the battery cavity in the chain saw (Figure 24). g315763 Figure 25 1. Latch g315702 Figure 24 3.
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. 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. g290533 Figure 26 5. LED indicators (current charge) 2.
Maintenance Recommended Maintenance Schedule(s) Maintenance Service Interval Before each use or daily Maintenance Procedure • • • • • • Check the oil level and add bar and chain oil if necessary. Check the chain brake. Check that oil is flowing to the chain. Check the chain tension and adjust it if necessary. Ensure that the bar is straight and undamaged Check the chain for sharpness; contact an Authorized Service Dealer to have the chain sharpened or replaced.
Checking the Flow of Bar and Chain Oil Checking the Chain Brake Service Interval: Before each use or daily After each battery drain cycle Service Interval: Before each use or daily 1. Place the chain saw on a flat surface and remove the battery pack; refer to Removing the Battery Pack (page 17). 2. Engage the chain brake by moving the chain brake forward to the STOP position (Figure 28). 1. Prepare to use the chain saw; refer to Before Using the Chain Saw (page 10). 2.
Adjusting the Chain Tension 6. Hold up the tip of the guide bar (Figure 30). Service Interval: Before each use or daily After each battery drain cycle Ensure that the chain is properly tensioned. A loose chain shortens the life of the drive sprocket and the guide bar and may cause the chain to fall off. An overtightened chain overheats the guide bar and chain, causing rapid wear, and may burn out the motor or break the chain.
Servicing the Guide Bar, Chain, and Drive Sprocket Yearly or before storage DANGER Contact with the chain saw teeth can cause serious personal injury. • Remove the battery pack before adjusting or maintaining the chain saw. • Always wear gloves when adjusting or maintaining the chain saw. 1. 2. Place the chain saw on a flat surface and remove the battery pack; refer to Removing the Battery Pack (page 17).
Installing the Guide Bar and Chain 3. Note: If you are installing a new chain, flip the guide bar to avoid uneven wear. DANGER 4. Contact with the chain saw teeth can cause serious personal injury. • Remove the battery pack before adjusting or maintaining the chain saw. 2. Position the open loop of the chain (not on the guide bar) around the drive sprocket on the chain saw and install the guide bar and attached chain onto the chain saw as shown in Figure 34C.
Preparing the Battery Pack for Recycling Storage Important: Store the machine, battery pack, and charger only in temperatures that are within the appropriate range; refer to Specifications (page 10). Important: Upon removal, cover the terminals of the battery pack with heavy-duty adhesive tape. Do not attempt to destroy or disassemble the battery pack or remove any of its components.
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 chain saw does not run or does not run continuously. Possible Cause 1. The battery pack is low on charge. 1. Charge the battery pack. 2. The battery pack is not fully seated. 2.
Problem Possible Cause Corrective Action The LED indicator light on the battery charger is red. 1. The battery charger and/or battery pack is over or under the appropriate temperature range. 1. Unplug the battery charger and move the battery charger and battery pack to a place where it is dry and the temperature is between 5°C (41°F) and 40°C (104°F). The LED indicator light on the battery charger is blinking red. 1. There is an error in the communication between the battery pack and the charger. 1.
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.
