Section 3 - Specifications; Engine Specifications - Scag Power Equipment STT Operator's Manual

3.1 ENGINE
General Type .............................................................................. Heavy Duty Industrial/Commercial Gasoline
Brand ......................................................................................... Kohler 25HP (Spec. #PS-CH730-0066)
................................................................................................... Kohler 27HP (Spec. #PS-CH740-0021)
Model ......................................................................................... Kohler Command, Kaw. FD671D, Kaw. FD750D, Kaw. FD791D
Horsepower ................................................................................ 25 HP at 3600 RPM (Model STT52A-25CH, STT61A-25CH)
Type ........................................................................................... 4 Cycle Gasoline, Twin Cylinder, Horizontal Shaft
Displacement ............................................................................ 25HP Kohler 725cc., 27hp Kohler 725cc.
.................................................................................................. 23HP Kaw. 745cc., 27HP Kaw. 745cc., 29HP Kaw. 745cc.
Cylinders .................................................................................... 2 with Cast Iron Sleeves
Governor .................................................................................... Mechanical Type with Variable Speed Control Set At 3600 RPM
Idle Speed .................................................................................. 1400 RPM
Kohler Fuel Pump Group ............................................................ Mechanical Type Fuel Pump with In-Line Fuel Filter, Fixed Jet
Kawasaki Fuel Pump Group ....................................................... Electric Fuel Pump with In-Line Fuel Filter,Fixed Jet Downdraft
Fuel ............................................................................................ Non-Leaded Gasoline with a Minimum Octane Rating of 87
Oil Pump Group .......................................................................... Positive Displacement Gerotor™ Oil Pump with Remote Oil
Starter ......................................................................................... Electric Starting with Solenoid Shift Starter
Belts: .......................................................................................... Kevlar cord. Self-adjusting, Self-tightening
Deck Drive Belt ....................................................................... Scag Part Number - 481460
Pump Drive Belt ...................................................................... Scag Part Number - 482641
Kawasaki Fan Belt .................................................................. Part Number - Mitsubishi 59011-2056 (Avail. Through Kawasaki)
3.2 ELECTRICAL
Battery ....................................................................................... 12 Volt
Charging System ........................................................................ Alternator
Charging Output ........................................................................ 12 Volt, 15 Amp
System Polarity .......................................................................... Negative Ground
Starter ......................................................................................... 12 Volt Electric Ring Gear Type, Key and Solenoid Operated Interlock
Switches ..................................................................................... Seat, Neutral Control, Mower Engagement (BBC), Parking Brake
Instrument Panel ........................................................................ Ammeter, Key Switch, Throttle Lever, Manual Choke, BBC Switch,
................................................................................................... Fuses and Safety Start module, Temp. gauge (KA), Check Engine
................................................................................................... Indicator (DFI)
Fuses ......................................................................................... Two (2) 20 Amp
3.3 TRACTOR
Drive System .............................................................................. Hydraulic Drive with Two Variable Displacement Pumps and Two
................................................................................................... Cast-iron High Torque Motors
Hydrostatic Pumps .................................................................... Two Hydro-Gear™ BDP 16A Pumps with Dump Valves for
Drive Wheel Motors .................................................................. Two Ross Model TG 15 cu. inch Cast-iron High Torque Motors
Steering/Travel Control .............................................................. Twin Lever Fingertip Steering Control with Individual Control to
Parking Brake ............................................................................. Lever Actuated Linkage to Brakes on Both Drive Wheel Axles
Wheels:
(2) Front Caster ...................................................................... 13 X 5.00 Four-Ply, 52". 13 X 6.00 Four Ply, 61" & 72"
(2) Drive ................................................................................. 23 X 10.5 X 12 Four-Ply Pneumatic Tubeless, Radius Edge, 52"
................................................................................................... 24X12.0X12 Four-Ply Pneumatic Tubeless, Radius Edge, 61"
Fuel Tank ................................................................................... 10-Gallon Seamless Polyethylene Tank with Large opening and
................................................................................................... Fuel Gauge Fill Cap
SPECIFICATIONS
Kawasaki, 23HP (Spec. #FD671D-AS01)
Kawasaki, 27HP (Spec. #FD750D-AS04)
Kawasaki, 29HP (Spec. #FD791D-AS03)
23 HP at 3600 RPM (Model STT52A-23KA, STT61A-23KA)
27 HP at 3600 RPM (Model STT61A-27KA, STT61A-27CH,
STT72A-27KA)
29HP at 3600 RPM (Model STT61A-29KA-DFI, STT72A-29KA-DFI)
Carburetor with Smart-Choke™ and Fuel Shutdown Solenoid
Carburetor.
Filter
movement without running the engine and pressure relief valves
Each Wheel with Gas Spring Dampers
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Section 3