Background

The Craftsman Trimmer 316.731970 is a string trimmer that operates on a 30cc 4-cycle engine. This machine is primarily utilized for the trimming of grass and lite-weight weeds, having a cutting swath of 14 inches. Key specifications include an air-cooled engine with a displacement of 1.83 cubic inches. The trimmer operates with a Champion RDZ4H spark plug or an equivalent, with a spark plug gap of 0.025 inches. Lubrication is achieved using SAE 30 oil, with a crankcase oil capacity of 2.03 ounces. The fuel tank can hold up to 12 ounces of fuel, and the overall weight of the trimmer, without fuel, lies between 13 to 14 pounds.

The Craftsman Trimmer 316.731970 is equipped with features such as a cutting head and a spiral cutting line that minimizes noise. The trimmer has a cutting path diameter of 14 inches. It also includes ergonomic handles and an adjustable assist handle for better handling. The trimmer is designed to be used with unleaded gasoline and requires a routine check of the engine oil level before each use. Regular maintenance includes cleaning the air filter every 10 hours and changing the engine oil after the first 10 hours and every 50 hours thereafter. Spark plug inspection and replacement, when needed, is also part of the recommended maintenance routine.

Technical Specifications

  • Engine: Air-cooled, 4-cycle, 30cc
  • Displacement: 1.83 cu. in.
  • Spark Plug Gap: 0.025 in (0.635 mm)
  • Spark Plug: Champion RDZ4H or equivalent
  • Lubrication: SAE 30 oil
  • Crankcase Oil Capacity: 2.03 oz (60 ml)
  • Fuel Tank Capacity: 12.0 oz (355 ml)
  • Weight (without fuel): 13-14 lbs (5.9-6.4 kg)
  • Cutting Head: Automatic feed head
  • Cutting Line: Quiet spiral line
  • Cutting Path Diameter: 14 in (35.6 cm)

Warranty

The Craftsman Trimmer 316.731970 comes with a 2-year limited warranty, which covers any defects in materials or workmanship. Beyond this period, there's an additional limited warranty on the trimmer shaft housing from years 3 to 10. If you run into any issues within the warranty period, you need to contact the manufacturer or authorized service center, providing details about the problem and proof of purchase. Always remember to keep a copy of the receipt when you purchase the product.

Craftsman 316.731970 Owners Manual