Snapper 150Z Operater's Manual - Page 44

Specifications NOTE: Specifications are subject to change without notice. ENGINE (18.5hp *): Make Briggs & Stratton Model Professional Series Gross Horsepower * 18.5 Displacement 500cc ENGINE (21hp *): Make Briggs & Stratton Model Professional Series Gross Horsepower * 21 Displacement 540cc CHASSIS: Fuel Tank Cap. Rear Wheels Front Wheels Capacity: 3.00 Gallons (11,4 L) Tire Size: 18 x 8.5 Inflation Pressure: 10-12 psi (,69-,83 bar) Tire Size: 11 x 4 Inflation Press.: 18-20 psi (1,24-1,30 bar) TRANSMISSION: Type Hydro-Gear EZT Hydraulic Fluid 20w 50 Premium Engine Oil for tion * Power Rating The gross power rating for individual gas engine models is labeled in accordance with SAE (Society of Automotive t c Engineers) code J1940 (Small Engine Power & Torque Rating Procedure), and rating performance has been obtained o and corrected in accordance with SAE J1995 (Revision 2002-05). Torque values are derived at 3060 RPM; horseu power values are derived at 3600 RPM. The gross power curves can be viewed at www.BRIGGSandSTRATTON. N d COM. Net power values are taken with exhaust and air cleaner installed whereas gross power values are collected without these attachments. Actual gross engine power will be higher than net engine power and is affected by, among o other things, ambient operating conditions and engine-to-engine variability. Given the wide array of products on which r engines are placed, the gas engine may not develop the rated gross power when used in a given piece of power equipment. This difference is due to a variety of factors including, but not limited to, the variety of engine components p (air cleaner, exhaust, charging, cooling, carburetor, fuel pump, etc.), application limitations, ambient operating condie tions (temperature, humidity, altitude), and engine-to-engine variability. Due to manufacturing and capacity limitations, R Briggs & Stratton may substitute an engine of higher rated power for this Series engine.