8
SPECIFICATIONS
Section 3
3.1 ENGINE
General Type .............................................................................. Heavy Duty Industrial/Commercial Gasoline
Brand ......................................................................................... Kohler, 23HP (Spec. #PS-76523) 25HP (Spec. #PS-68645)
Kawasaki, 22HP (Spec. # FD661D-AS0201)
Kawasaki, 23HP (Spec. #FD671D-AS01)
Kawasaki, 27HP (Spec. #FD750D-AS04)
Model......................................................................................... Kohler Command, Kaw. FD661D, Kaw. FD671D, Kaw. FD750D
Horsepower................................................................................ 23 HP at 3600 RPM (Model STT52&52A-23CH, STT61&61A-23CH)
25 HP at 3600 RPM (Model STT52&52A-25CH, STT61&61A-25CH)
22 HP at 3600 RPM (Model STT52A-22KA, STT61A-22KA)
23 HP at 3600 RPM (Model STT52A-23KA, STT61A-23KA)
27 HP at 3600 RPM (Model STT61A-27KA, STT72A-27KA)
Type ........................................................................................... 4 Cycle Gasoline, Twin Cylinder, Horizontal Shaft
Displacement ............................................................................ 23HP Kohler 674 cc., 25HP Kohler 725cc.
.................................................................................................. 22HP Kaw. 617cc., 23HP Kaw. 671cc., 27HP 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
Carburetor with Smart-Choke and Fuel Shutdown Solenoid
Kawasaki Fuel Pump Group ....................................................... Electric Fuel Pump with In-Line Fuel Filter,Fixed Jet Downdraft
Carburetor.
Fuel ............................................................................................ Non-Leaded Gasoline with a Minimum Octane Rating of 87
Oil Pump Group .......................................................................... Positive Displacement Gerotor Oil Pump with Remote Oil
Filter
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 - 482171
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, Hourmeter, Key Switch, Throttle Lever, Manual Choke,
BBC Switch, Fuses and Safety Start module, Temp. gauge (KA)
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 10L Pumps with Dump Valves for
movement without running the engine
Drive Wheel Motors .................................................................. Two Ross Model MB 15 cu. inch Cast-iron High Torque Motors
Steering/Travel Control.............................................................. Twin Lever Fingertip Steering Control with Individual Control to
Each Wheel with Gas Spring Dampers
Parking Brake ............................................................................. Lever Actuated Linkage to Brakes on Both Drive Wheel Axles
Wheels:
(2) Front Caster ...................................................................... 13 X 5.00 Four-Ply
(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 Fuel Gauge Fill Cap
Tire Pressure:
Front Caster ........................................................................... 25 PSI
Drive ...................................................................................... 12 PSI
Seat ............................................................................................ Padded, Thick Cushion with tall back rest
Summary of Contents for STT
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