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Section 3

 

SPECIFICATIONS

3.1 Engine

 

General Type

Heavy Duty Industrial/Commercial Gasoline

Brand

Kohler

Model

Kohler Aegis LH775S (PS-LH775-0015)

Horsepower

31HP at 3600 RPM

Type

4-Cycle, Twin Cylinder, Liquid-Cooled, Electronic Fuel Injected Horizontal Shaft, OHV

Displacement

748 cc.

Cylinders

2 with Cast-Iron Sleeves

Valve Group

Hydraulic Valve Lifters

Governor

Mechanical Type with Variable Speed Control Set At 3800 RPM

Idle Speed

1500 RPM Kohler

Fuel Pump

Electric Fuel Pump with In-Line Fuel Filter

Carburation

Electronic Fuel Injection

Fuel

Non-Leaded Gasoline with a Minimum Octane Rating of 87

Oil Pump

Full Pressure w/Full-Flow Filter

Starter

Electric Starting with Solenoid Shift

Cooling Group

Heavy-Duty Radiator, High-Flow Engine Cooling Fan, Water Pump

Air Intake

Large Capacity 2-Stage Canister Air Filter

3.2 Electrical

 

Battery

12 volt "Maintenance Free" Sealed Battery (300 CCA)

Charging System

Alternator

Charging Output

12 Volt, 20 Amp

System Polarity

Negative Ground

Interlock Switches

Seat, Neutral Control, Mower Engagement (BBC), Parking Brake

Instrument Panel

Volt Meter, Key Switch, Throttle Lever, BBC Switch,

 

Fuses and Safety Start module, Water Temperature Gauge

Fuses

Two (2) 20 Amp

3.3 Power Head

 

Drive System

Hydraulic Drive with Two Variable Displacement Pumps and Two Cast-Iron High Torque Motors

Hydrostatic Pumps

Two Hydro-Gear™ 16 cc/rev. Pumps with Dump Valves

Belts

Kevlar cord. Self-adjusting, Self-tightening

Drive Wheel Motors

Two Hydro-Gear™ 18E 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 6.00 Flat-Free

(2) Drive

24 x 12 x 12 Four-Ply Pneumatic Tubeless, Radius Edge

Tire Pressure:

 

Front Caster

Flat Free

Drive

12 PSI

Fuel Tank

10-Gallon Seamless Polyethylene Tank with Large opening and Fuel Gauge Fill Cap

Seat

Padded, Thick Cushion with tall back rest

Travel Speed:

 

Forward

0-12 MPH

Reverse

0-6 MPH

-NOTE- The machine will travel at 10 mph or 12 mph for transport purposes. For best cutting performance the forward travel speed should be adjusted depending upon the cutting conditions.

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Scag Power Equipment STT-31EFI-SS operating instructions Specifications, Engine, Electrical, Power Head
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STT-31EFI-SS specifications

Scag Power Equipment is renowned for producing high-quality commercial mowing equipment, and the STT-31EFI-SS stand-on mower is no exception. Designed with professional landscapers in mind, the STT-31EFI-SS offers a perfect blend of power, efficiency, and maneuverability.

One of the standout features of the STT-31EFI-SS is its 31 hp EFI (Electronic Fuel Injection) engine. This powerhouse engine not only delivers impressive power but also enhances fuel efficiency. The EFI technology ensures that the engine operates at optimal performance by automatically adjusting the air-to-fuel ratio under varying conditions. This results in smoother starts, improved throttle response, and reduced emissions, making the mower both environmentally friendly and cost-effective in the long run.

The STT-31EFI-SS features a durable construction built to withstand the rigors of commercial use. Its robust steel frame and heavy-duty components are designed for maximum longevity. Moreover, the mower is equipped with Scag's cutting-edge Hydro-Gear ZT-3400 transmission, which offers exceptional speed and agility. This transmission allows operators to navigate tight spaces with ease and provides a top speed of up to 10.5 mph, making it ideal for large properties or demanding mowing tasks.

Operator comfort is another key aspect of the STT-31EFI-SS. The stand-on design promotes better visibility and quick maneuverability, enabling operators to navigate obstacles with confidence. The padded operator platform and adjustable controls ensure a comfortable experience, even during extended use. Additionally, the mower’s low center of gravity enhances stability on slopes and uneven terrain.

One of the most notable characteristics of the STT-31EFI-SS is its advanced cutting deck. The mower features a 48", 52", or 61" Velocity Plus cutting deck, which is known for delivering a superior cut and impressive grass dispersal. The deck is engineered for optimal airflow, enabling precision mowing while preventing clumping. This technology ensures that grass clippings are evenly distributed, resulting in a healthier lawn appearance.

In conclusion, the Scag STT-31EFI-SS stand-on mower integrates powerful performance, innovative engineering, and comfort. Featuring a reliable EFI engine, robust construction, and exceptional maneuverability, this mower stands out as an excellent choice for professional landscapers seeking efficiency and reliability in their equipment.
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