Scag Power Equipment STT-31BSG - Manual (Page 10)

6
SPECIFICATIONS
Section 3
SCAG “SABRE TOOTH TIGER” ZERO-TURN RIDER
MODEL: STT– 31BSG
ENGINE
General Type: Heavy duty industrial/commercial
Brand: Briggs Daihatsu Vanguard Liquid Cooled 31 HP
Model: DM950G
Horsepower: 31 HP @ 3600 RPM
Type: water cooled 4 cycle, overhead valve, 3 cylinder, gas engine
Displacement: 952 cc
Cylinders: 3 inline sleeves
Governor: High-speed flyweight governor, runs faster than engine crankshaft, provides precision
speed governing and a steady low idle, 3600 rpm (±100 rpm), idle set at 1500 rpm
Air Intake Group: Canister type air filter system.
Exhaust Group: Single exhaust canister muffler
Fuel Pump Group: Electric fuel pump with mechanical choke and fuel shutdown solenoid
Oil Pump Group: Positive displacement Gerotor™ oil pump with remote oil filter, capacity 3.2 U.S. quarts
(3.0 ltrs) with oil filter
Valve Group: Overhead
Electrical/Charging System: 12 volt battery with alternator, solid state ignition with key start, 40 amp regulated
charging system using a microprocessor and one ignition coil for each cylinder, solenoid
shift type starter
ENGINE DECK
Fuel Tank: 10 gallon (38.0 litres) seamless polyethylene tank with fuel gauge gas cap
Drive Wheels/Tires: 24x12-12 four-ply pneumatic tubeless, radius edge, offset rims to improve operator’s view
Parking Brake: Lever operated interlocked parking brake prevents operation with parking brake engaged
Frame: Compact tractor frame with structural steel tubing construction
DRIVE SYSTEM
Type: Hydro drive with two variable displacement pumps and two cast iron motors for
independent control of each drive wheel
Hydro Pumps: Two Hydro-Gear Model BDP 21L pumps with dump valves for movement without running
engine
Drive Wheel Motors: Two 23 cubic inch cast-iron high torque wheel motors
Transmission Belt Idler: Self-adjusting, self-tightening, sealed bearings
Hydro Fluid Cooling Group: 6 qt. capacity nylon fluid reservoir, uses SAE 20W50 fluid and 10 micron filter
Steering/Travel Control: Twin lever fingertip steering control with gas shock dampeners for smooth, responsive
control to each wheel
Axles: 1-1/4" heavy-duty, tapered motor shafts
Wire Harness: 14 gauge wire
Safety Group: Seat actuated engine kill, neutral interlock, mower engagement (BBC) switch, parking
brake
Instrument Panel: Voltmeter, water temperature gauge, oil pressure gauge, key switch, throttle, fuses, manual
choke, BBC switch (hourmeter located at rear of machine)
Forward Ground Speed Range: 0 to 10.5 mph
Reverse Ground Speed Range: 0 to 5.0 mph
Date of Issue: September, 1999
Specifications Subject To Change Without Notice
-NOTE-
The machine will travel at 10.5 mph for
transport purposes. For best cutting
performance the forward travel speed
should be adjusted depending upon the
cutting conditions.