This machine is intended to be used by residential homeowners. It is designed primarily for removing snow from paved surfaces, such as driveways and sidewalks, and other surfaces for traffic on residential or commercial properties. It is not designed for removing materials other than snow.
Read this information 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 properly and safely.
Find all the parts you need for your Toro String Trimmer 51990A at RepairClinic.com. We have manuals, guides and of course parts for common 51990A problems. Help Center FAQs. Residential; Landscape Contractor; Concrete & Compaction; Compact Utility; Turf Renovation & Tree Care.
You may contact Toro directly at www.Toro.com for product safety and operation training materials, accessory information, help finding a dealer, or to register your product.
Whenever you need service, genuine Toro parts, or additional information, contact an Authorized Service 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.
- Homelite 51990A Brushcutter S/N 250000001 & Up Exploded View parts lookup by model. Complete exploded views of all the major manufacturers. It is EASY and FREE.
- Model # 51990 Serial # 250000001 - 250999999 Product Name 18in Straight-Shft Gas Trimmer / 8in Brushcutter.
- Upper Boom / Handle Assembly diagram and repair parts lookup for Toro 51990 - Toro Brush Cutter (SN: 250000001 & Above). OPERATOR'S MANUAL. Part# 983000661.
Important: With your smartphone or tablet, scan the QR code on the serial number decal to access warranty, parts, and other product information.
Figure 1
- Model and serial number location
This manual identifies potential hazards and has safety messages identified by the safety-alert symbol (Figure 2), which signals a hazard that may cause serious injury or death if you do not follow the recommended precautions.
Figure 2
Safety-alert symbol
This manual uses 2 words to highlight information. Important calls attention to special mechanical information and Note emphasizes general information worthy of special attention.
Important: If you are using this machine above 1500 m (5,000 ft) for a continuous period, ensure that the High Altitude Kit has been installed so that the engine meets CARB/EPA emission regulations. The High Altitude Kit increases engine performance while preventing spark-plug fouling, hard starting, and increased emissions. Once you have installed the kit, attach the high-altitude label next to the serial decal on the machine. Contact any Authorized Toro Service Dealer to obtain the proper High Altitude Kit and high-altitude label for your machine. To locate a dealer convenient to you, access our website at www.Toro.com or contact our Toro Customer Care Department at the number(s) listed in your Emission Control Warranty Statement. Remove the kit from the engine and restore the engine to its original factory configuration when running the engine under 1500 m (5,000 ft). Do not operate an engine that has been converted for high-altitude use at lower altitudes; otherwise, you could overheat and damage the engine.If you are unsure whether or not your machine has been converted for high-altitude use, look for the following label (Figure 3).
Figure 3
CALIFORNIA
Proposition 65 Warning
The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
Manual Car Service Manuals
Use of this product may cause exposure to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.