Description of Requirements_Utility Tractor and Tiller_13MAR.pdf

Description of Requirement

Utility Tractor and Tiller

Quantity: 1 each tractor and tiller

Purpose:

The U.S. Army Engineer Research and Development Center (ERDC) is engaged in an advanced technology demonstration aimed at supporting military force projection, with a particular focus on improving methodologies for engineer maneuver support functions. This initiative is vital for maintaining ERDC's leadership in research and development that enhances the operational readiness and efficiency of military engineering units. A critical aspect of this effort involves the daily, intensive use of a tractor with tiller attachment, an essential machine for processing and tilling soils for test section construction at ERDC's Hanger 2 testing facility. The current tractor has seen extensive use over many years and is now outdated, leading to increased maintenance needs and the risk of operational delays.

The growing demands of ERDC's Airfields and Pavements Branch—which has expanded significantly in both personnel and project scope—further exacerbate the pressure on this aging equipment. A new, modern tractor would provide greater reliability and ensure that all team members can efficiently access the equipment necessary for their work. This requirement is crucial for maintaining productivity and meeting requirements of current and future products.

By investing in new, advanced equipment, ERDC reaffirms its commitment to innovation and excellence, directly supporting the Army’s broader mission and ensuring mission success through enhanced capabilities and operational readiness.

The specific requirements for this new equipment are detailed in the following sections.

Tractor Requirements:

This requirement describes a 4x4 utility tractor with specifications in the ranges and minimum values below. The selected tractor make and model must have a licensed service department within 75 miles of

Vicksburg, MS (zip code 39180).

• Operating Weight: 13,000 – 15,000 lb

• Cab Type: Climate Controlled Cab required

• Engine Type: 4-Cylinder Diesel engine required

• PTO Power: 85 - 110 HP

• Engine Horsepower: 110 - 120 HP

• Transmission: 24-Speed minimum

• Creep Mode option for transmission is required

• Hydraulic Pump: 25 – 35 gpm

• Minimum of two ISO couplers for rear selective control valves

• Reverser: left-hand operated shuttle shift required

• DEF tank: minimum 5.0 US gal

• Drive System: Four-wheel drive (4WD) required

• Brakes: Hydraulic wet disc brakes required

• Steering System: Hydrostatic power steering required

• Rear power take-off (PTO): 540 PTO required

• Front Axle: limited slip differential required

• PTO actuation: In cab switch required

• Parking Brake required

• Tires: Front- R-1; Rear- R-1; agricultural type tires required

• Rollover Protective Structure required

• Alternator size: Standard alternator required

• Battery: Standard 12V required

• Rear hitch lift capacity: minimum category 2; minimum 8,000 lb capacity

• Fuel Capacity: 40 - 50 US Gal

• Seat: Standard seat with air suspension required

• Turning Radius: less than 16 ft

• Wheelbase: 84 – 108 in

• Standard Features: Speedometer, tachometer, hour meter, gear indicator (with creep mode), DEF gauge, fuel gauge, coolant temperature gauge, and lighting system are all required

Tiller Requirements:

This requirement describes a heavy-duty tiller that is compatible with the above-described tractor:

• 96 - 108 in. working width

• Heavy duty gear drive required

• Multi speed gearbox required

• Minimum category 2 quick hitch compatible required (must be compatible with tractor)

• Quantity of 9 - 12 rotors

• Six “L-type” tines per rotor required

• Wear/skid shoes required

• Slip clutch on drive shaft required

• Tiller must be compatible with tractor

Solutions that do not meet these requirements should not be considered.