attachment-1-bid-200-25.pdf

REV.3/14/2025

NH Department of Transportation

SPECIFICATION

LOADER/ BACKHOE, 4 WHEEL DRIVE

SCOPE

This specification covers the state of New Hampshire Department of Transportation’s requirements for a 4-wheel drive loader/backhoe complete with equipment as specified herein.

GENERAL SPECIFICATION

• Lockable vandal protection for engine hood, toolbox, hydraulic reservoir, and fuel filler.

• Unit shall include a tilt hood that opens for easy access.

• periodic maintenance and grease chart shall be included.

• Fuel tank capacity will be no less than 32 gallons and will be accessible from the ground.

• Operating weight with typical equipment (1.25C.Y loader bucket and 24” backhoe bucket) shall exceed 16,500lbs.

• Tires shall be Michelin XMCL Radials (or equivalent), minimum 18” rim size on front and 24” on rear.

• An electronic back up alarm is required.

• Equipment will be inspected to ensure spec compliance upon delivery, prior to acceptance by the State of New Hampshire.

• Equipment to be delivered ready for immediate use, serviced, and lubricated.

• A complete set of operator, parts and service manuals shall be provided and include all components of machine.

• Successful vendor will furnish at no additional charge, a qualified representative to instruct department personnel in the operation and preventative maintenance of the purchased equipment.

• A five (5) year/7,500 hour NO COST warranty covering the entire machine except tires, glass and batteries shall be provided. Units will be repaired within 3 working days, or a replacement unit will be provided at the vendor’s expense.

Warranty work will be performed at the location the machine is assigned. Any transportation costs shall be paid for by the vendor.

• Unit(s) to be equipped with wireless machine monitoring system as standard equipment with a secure, web based, application to be used by the State for reviewing machine location, usage and maintenance data such as hour meter readings, all warnings, and monthly activity for a period of 10 years from in service date. State will determine in service date.

• The vendor shall offer as a line item, two (2) complete sets of diagnostic software and hardware for 10 years. This includes:

o A diagnostic device (com device) and the necessary cables to connect to a

State-owned laptop.

o Software capable of diagnosing and/or retrieving and clearing any active or inactive fault codes stored in the unit's system.

o Software functionality to read sensor data and bi-directional communication such as performing injector cut-out tests.

• The contracting vendor will be solely responsible for meeting the specification requirements, including delivery.

BACKHOE

• The backhoe with extendible dipper stick digging depth shall be a minimum of

17’-6” SAE.

• The lift capacity at full height with extendible dipper stick retracted shall be no less than 3,200 lbs.

• The lift capacity at full height with extendible dipper stick extended shall be no less than 2,000 lbs.

• A swing lock pin shall be supplied and stored in a convenient location for the operator.

• The stabilizer valve will be two directional, anti-drift.

• The stabilizer shall have reversible pads. One side replaceable rubber pads, and the other steel.

• Extendible dipper stick shall extend no less than 3’-5” in length.

• The backhoe boom design shall be a power curve to allow for loading into the center of a truck bed.

• The backhoe boom shall be an hourglass shape to ensure maximum strength and optimized visibility to the work tool.

• Digging force with extendible backhoe, bucket cylinder will be at least 10,800 lbs

(heavy duty cylinder).

• The backhoe shall be equipped with rubber bumper linkage style boom locks to keep the backhoe from vibrating on the swing frame.

• Unit shall be equipped with Pilot Operated backhoe controls with an in-cab electronic switch to swap over between SAE and ISO backhoe patterns.

• The swing casting will have dual yokes: on top and on the bottom.

• Machine shall have an electronic diverter valve (cab switch operated) to switch between thumb operation and tilting grading bucket operation.

• Manufacturer built and factory installed manual “pin grabber” style coupler.

• 42” hydraulic tilting grading bucket.

• Manufacturer built and factory installed 24”x 7.0C.F minimum severe digging bucket

• Unit shall be equipped with a rated location to install a clevis for a lifting point.

• Manufacturer built and factory installed tined hydraulic thumb to match 24” digging bucket with pin grabber style coupler and fittings located away from the work area.

LOADER

• Lift capacity with a 1.25C.Y minimum bucket at full height shall be at least 5,300 lbs.

• Dump clearance @ 43-45 degrees shall be no less than 8’-6”.

• Digging depth below ground bucket level shall be no less than 3.0”.

• Bucket breakout force shall be no less than 8,300 lbs.

• Single bucket tilt cylinder

• The loader shall have hydraulic self-levelling and bucket level indicator.

• The loader shall have divergent loader arms for visibility to the bucket.

• The loader arms shall have a curved-knee design to allow for loading into the center of truck beds.

• The loader control will be single level with electric clutch disconnect.

• Manufacturer built and factory installed hydraulic quick coupler.

• 1.25C.Y multipurpose bucket installed

• Factory installed third function auxiliary hydraulics with quick couplers, for operation of multipurpose bucket, or other front hydraulically powered attachments.

• The loader shall have a non-removable, hinged loader boom service lock.

OPERATOR STATION

• Unit shall be equipped with isolation mounted modular design ROPS/FOPS canopy and molded roof.

• Access to the cab will be from the right and left sides with protected, wide, rigid, slip-resistant steps and ergonomically located handholds.

• 3” retractable seat belt with digital warning shall be provide.

• Shall be equipped with operator manual storage compartment, interior mirror and two 12-volt accessory outlets.

• Unit shall be equipped with illuminated electronic gauges with audible warning for: engine coolant temperature, oil temperature, and fuel level.

• The monitor system will have an audible and visual warning: engine air restrictor, low alternator voltage, engine oil pressure/temperature, hydraulic filter restriction, parking brake on/off, and low brake pressure.

• The keyless or key operated start will have an electric fuel shut-off.

• The monitor shall have a digital monitor for diagnostics (including diagnostic messages and fault code readings), calibrations and machine information.

• Shall have a machine security electronic protection system provided through the monitor or sealed switch module.

• Shall have a sealed switch for ease of control, located on the right hand console.

• Unit shall have a digital display for: engine rpm, engine hours, system voltage, and hydraulic oil temperature.

• Equipped with factory installed cab including factory installed air conditioning, heat and defroster.

• Cab shall be equipped with safety glass.

• Equipped with a FM radio and Bluetooth.

• Factory installed air ride, fully adjustable cloth seat with 180 degree rotation for both forward and rearward operation.

• A 5lb fire extinguisher shall be mounted inside the cab.

• Unit shall be equipped with front and rear windshield wipers.

ENGINE

• Engine will be certified to EPA Final Tier 4/EU Stage IV

• Engine shall be of the same manufacturer as machine

• Engine shall be turbo charged, four-cylinder, producing a minimum 100 NET horsepower.

• Daily check points will be accessible from the same side of engine from a safe location.

• Unit shall be equipped with an Auto-Idle feature.

• Engine will have a serpentine belt with automatic belt tensioner.

• Under-Hood engine air cleaner will be dry type, dual element with evacuator valve, restriction sensor, and in-cab restriction warning light.

• Exhaust will exit via a curved style end pipe.

• Primary fuel filter with water separator.

• Unit shall be equipped with an engine block heater.

COOLING

• Engine coolant will be rated to -40 degrees Fahrenheit.

• The backhoe will be equipped with an oil-to-water engine oil cooler.

• Unit shall include a coolant recovery tank.

• Unit shall be equipped with a variable rate suction type fan, with fan guard.

• The AC condenser shall be “swing out” style enabling faster radiator maintenance.

• Remote mounted transmission and hydraulic coolers.

• The hydraulic and transmission circuits will be water-cooled.

POWERTRAIN

• Power shift transmission with torque converter, clutch-free; fully synchronized minimum four forward and two reverse speeds.

• Shall include auto-shift software.

• Capable of 22MPH transport speed minimum.

• Sealed axles with no breather.

• Mechanical front wheel drive with traction control, limited slip differential, with electric on/off control.

• Drivetrain will engage MFWD when brakes are applied for four-wheel braking.

• The driveshaft will be painted for protection and include a full guard.

• The clutch engaged MFWD shall be capable of being engaged on the fly during operation.

• The transmission will be isolation-mounted to the mainframe to minimize shock load stress.

• The rear axle will be 100% hydraulically locking.

• Factory installed single electric FNR cooler.

• Hydrostatic power steering with emergency manual mode.

• Dial throttle with automatic return to idle upon application of the brakes

• Final drives will be heavy-duty outboard planetary gears, sealed in cooling oil bath.

• The front axle will have a remote grease bank for easy access.

• The rear axle bearings will be self-lubricating and shall not need to be greased.

• The service brakes will be inboard, wet multiple disk, self-adjusting, self-equalizing, hydraulically actuated and sealed from water, mud and dust contamination.

• The parking brake will be independent of service brakes, spring applied, hydraulically released, wet multi-disk, and sealed from water, mud and dust contamination.

HYDRAULIC SYSTEM

• Hydraulic cooler will have an independent reservoir.

• The hydraulic fittings will have “O” ring face seal connectors.

• Machine will Auto Idle to lower rpm when hydraulics are not active.

• Machine will be equipped with Economy Mode that can be activated in the monitor, to provide the maximum productivity at the maximum fuel efficiency in

1st & 2nd gears.

• The hydraulic filter shall be no more than 10 micron and will be vertically mounted, spin on design.

• Shall include an automatic bucket return-to-dig control.

• Hydraulic pump shall be minimum 28GPM.

• Machine shall be equipped with Ride Control via the front loader cylinders, either automatic or electrically applied, and controlled from the Operator’s station.

ELECTRICAL

• 12-volt system with minimum 145AMP alternator.

• Dual batteries (2), 1,900CCA minimum.

• Blade type, multi-fused circuits.

• Cab will be pre-wired with one auxiliary switch for optional accessories

• Unit will be equipped with 10 LED driving/working lights, (4 front driving/working; 4 rear; 2 side docking lights). The front lights shall be adjustable and be no less than 32,500 candlepower each.

• Unit shall be equipped with two front and two rear turn signal/flashing lights, two rear stop and taillights.

FRAME AND STRUCTURES

• The mainframe will be one-piece unitized construction for maximum strength.

• Unit shall have four built-in vehicle tie-downs, two in font and two in rear.

• The side plate thickness on the loader boom, backhoe boom and mainframe will be 4.5mm or greater.

• Machine shall be equipped with a lockable, exterior mounted, ground level accessed storage compartment.

• Machine shall have a 1,000LB minimum front counterweight for stable operation of rear attachments including thumb and/or tilting grading bucket.