Description
Heavy brush trimmers shake operators with intense engine vibration and waste time with manual carburetor adjustments during high-elevation clearing jobs. The Stihl FS 361 C-EM 20-1/2 Inch 37.7cc Gas Powered Brush Cutter with Auto-Cut 46-2 Head features electronic M-Tronic engine management to optimize performance. It swings a massive 20-1/2-inch swath. Extended brush clearing requires wearing the included harness.
A commercial 37.7 cc two-stroke engine features Stihl M-Tronic electronic engine management that automatically adjusts ignition timing and fuel metering across all operating conditions. The drive line houses a solid steel splined drive shaft supported by greaseable bronze guide bushings inside a heavy-wall aluminum tube. The cast-magnesium angle gear head features spiral bevel gears running inside a grease-packed gear housing.
Electronic Managed Brush Clearing Rig
Bicycle-style handlebars give operators superior sweeping leverage across wide hillsides and overgrown fence lines without back strain. The high-capacity AutoCut 46-2 head clears massive swaths through dense weed beds.
- 37.7 cc commercial two-stroke engine delivers 2.3 net Horsepower with electronic M-Tronic fuel management.
- 20-1/2-inch cutting swath clears expansive turf perimeter weeds fast in single continuous passes.
- AutoCut 46-2 bump-feed head holds extra-thick nylon line to power through thick roadside growth.
- Four-point anti-vibration system uses steel springs to isolate engine flutter from operator hands.
- Solid steel splined drive shaft withstands extreme shock loads when striking hidden rocks or stumps.
- Cast magnesium angle gear head features heavy spiral bevel gears for continuous torque transfer.
- Included double-shoulder harness distributes machine weight across the operator torso for balanced sweeping.
Combustion Engine Load Bench Telemetry
Spinning heavy 0.105-inch line through dense pasture weeds drops the 37.7 cc engine to 8200 RPM while fuel burn averages 0.42 GPH. Angle gear case temperature stabilizes at 140°F after 45 minutes of heavy field trimming. Engine mechanical power delivery measures 1.7 kW under continuous weed load. Sound pressure registers 96 dBA at the operator ear position.
Brush Clearing Scope Maintenance Protocols
Commercial land clearing crews, highway verge mowers, and estate groundskeepers clear overgrown trails fast with this rugged brushcutter. Do not attempt to fell trees thicker than 3 inches in diameter because sudden blade binding will bend the solid drive shaft. Never run the machine on straight gasoline without two-stroke oil mix.
- Clean grass clippings and mud from the engine cooling fins and starter housing after each shift.
- Pump high-temperature gear grease into the lower gear case plug hole every 25 hours of use.
- Inspect the air filter element and blow dust out with dry compressed air every 50 hours of use.
Equipment Guarantee Commercial Delivery Manifest
Stihl covers this commercial brushcutter with a 2-Year commercial warranty covering the engine block, solid drive shaft, and gear drive head. The shipping carton contains the FS 361 C-EM brushcutter, AutoCut 46-2 head, double harness, combo tool, and safety glasses.
