6
SPECIFICATIONS
3.1 ENGINE
General Type ............................................................................. Heavy Duty Industrial/Commercial Gasoline
Brand .........................................................................................Kohler
Model......................................................................................... Command
Horsepower................................................................................ 20 HP at 3600 RPM (Scag Model STR48-20CH)
22 HP at 3600 RPM (Scag Model STR48-22CH)
Type........................................................................................... 4 Cycle Gasoline, Twin Cylinder, Horizontal Shaft
Displacement............................................................................. 624 cc.
Cylinders ...................................................................................2 with Cast Iron Sleeves
Governor.................................................................................... Mechanical Type with Variable Speed Control Set At 3600 RPM
Idle Speed ..................................................................................1400 RPM
Fuel Pump Group ...................................................................... Mechanical Fuel Pump with In-Line Fuel Filter, Fixed Jet
Carburetor with Smart-Choke™ and Fuel Shutdown Solenoid
Fuel............................................................................................ Non-Leaded Gasoline with a Minimum Octane Rating of 97
Oil Pump Group: ....................................................................... Positive Displacement Gerotor™ Oil Pump with Remote Oil
Filter
Starter........................................................................................ Electric Starting with Cell Starter
Belts:
Engine Belt............................................................................ Scag Part Number - 481235
Blower Drive Belt ................................................................Scag Part Number - 481234
Left Pump Drive Belt........................................................... Scag Part Number - 481236
Right Hand Drive Belt .......................................................... Scag Part Number - 481237
3.2 ELECTRICAL
Battery .......................................................................................12 Volt
Charging System....................................................................... Alternator
Charging Output .......................................................................12 Volt, 30 Amp
System Polarity.......................................................................... Negative Ground
Starter........................................................................................ 12 Volt Electric Ring Gear Type, Key and Solenoid Operated
Interlock Switches..................................................................... Seat, Neutral Control, Mower Engagement (BBC), and Hopper
Instrument Panel .......................................................................Ammeter, Hourmeter, Key Switch, Throttle Lever, Manual Choke,
BBC Switch, and Fuses
Fuses .......................................................................................... Two (2) 30 Amp
3.3 TRACTOR
Drive System ............................................................................. Hydraulic Drive with Two Hydrostatic Transmissions For
Independent Control of Each Drive Wheel
Hydrostatic Transmissions ........................................................ Two Hydro-Gear™ Transmissions with Integral Pump/Motor
with Axle
Steering/Travel Control............................................................. Twin Lever Fingertip Steering Control with Individual Control to
Each Wheel
Parking Brake............................................................................ Lever Actuated Linkage to Brakes on Both Drive Wheel Axles
Wheels:
(2) Front Caster.................................................................... 9 x 3.5 Smooth Tires
(2) Drive............................................................................... 20 x 10.8 Four-Ply Pneumatic Tubeless, Radius Edge
(1) Rear ................................................................................
Fuel Tank................................................................................... 5-Gallon Seamless Polyethylene Tank with Fuel Gauge Fill Cap
Tire Pressure:
Front Caster.......................................................................... 25 PSI
Drive..................................................................................... 15 PSI
Rear ......................................................................................15 PSI
Seat ............................................................................................ Padded
Section 3