Background
The Craftsman Trimmer 316.791931 is a string trimmer powered by a gas engine. Manufactured by Ryobi America Corp for Sears under the Craftsman brand, it is equipped with a 29cc air-cooled 4-stroke engine that runs on unleaded gasoline. This engine is started by an electronic ignition with an auto-rewind function. The trimmer's other features include a diaphragm, all-position carburetor, and a steel tube drive shaft housing. It uses a finger-tip trigger for throttle control and a manual spring return for the throttle.
The Craftsman Trimmer 316.791931 has a fuel tank capacity of 14 oz and uses SAE 30 oil for lubrication, with an oil capacity of 3.04 oz. Its cutting head utilizes a line with a specific diameter, and the trimmer itself weighs between 11.5 to 13 lbs without fuel. The trimmer allows for the use of different attachments, expanding its functionality beyond trimming, making it versatile for a variety of gardening tasks.
Technical Specifications
- Engine: 29cc air-cooled 4-stroke
- Ignition: Electronic ignition with rocker switch
- Valve clearance: 0.003-0.006 in (0.076-0.152 mm)
- Spark plug: Champion RDZ4H or equivalent, gap 0.025 in (0.635 mm)
- Lubrication: SAE 30 oil
- Oil capacity: 3.04 oz (90 ml)
- Fuel: Unleaded gasoline
- Carburetor: Diaphragm, all-position
- Starter: Auto rewind
- Muffler: Baffled with guard
- Throttle: Manual spring return
- Fuel tank capacity: 14 oz (414 ml)
- Drive shaft housing: Steel tube
- Throttle control: Finger-tip trigger
- Weight: 11.5-13 lbs (5.2-5.9 kg) without fuel
- Cutting head: String trimmer head
- Line diameter: Spiral line
Warranty
The Craftsman Trimmer 316.791931 comes with a 2-year full warranty. This warranty covers defects in materials and workmanship from the date of purchase when the product is used for normal personal residential household use. Specifically, the warranty covers parts and labor on covered repairs. However, it's important to note that the warranty does not extend to commercial use, misuse, improper maintenance, stale fuel, or damage from improper attachments. Additionally, normal wear items such as fuel, oil, air filters, trimmer line, and spark plugs are not covered by the warranty. In order to claim the warranty, users are advised to contact the number 1-800-4-MY-HOME. Do remember to refer to the operator's manual provided with your trimmer for complete safety, use, and maintenance instructions.