Hitachi Construction Machinery Global

Note: Certain job conditions may require higher TKPH (TMPH) in order to maintain maximum production.
Evaluating the job conditions and consulting the tire manufacturer to make proper tire selection are recommended.

Twenty-four volt starting, lighting and accessories system.
Seventy ampere alternator with integral transistorized voltage regulator.
Two 12 V heavy duty batteries capable of 1300 cold cranking amps, each, at -17.8 degree C (0 degree F). A Hitachi solid state reprogrammable controller controls and monitors hauler systems, provides output information to control gauges and lights and incorporates connections for diagnostic tools.

Body capacity and payload subject to change based on customer specific material density, options and application.

Weights given are for standard options, standard body and tires.
Net machine weight changes will directly affect the payload.
Material density will determine body volume figures.

Note: Nominal Payload on front cover shows 100 / 110 of Payload with Standard Equipment

Closed-center, full-time hydrostatic steering system using two double-acting cylinders, pressure limit with unload piston pump and brake actuation / steering system reservoir. An accumulator provides supplementary steering in accordance with SAE J1511 and ISO 5010. The Operators steering wheel offers 35 degrees of tilt and 57.2 mm of tilt travel.

Two 2-stage, double-acting cylinders, with cushioning in retraction, inverted and outboard mounted. Separate Hoist/Brake Cooling reservoir and independent tandem gear pump. Control valve mounted on reservoir.

Brake system complies with SAE J1473/ISO 3450.
All-hydraulic actuated braking system provides precise braking control and quick system response. The brake controller has a unique variable front to rear brake proportioning that maximizes the stopping performance under all road conditions.

All hydraulic actuated front dry disc brakes, and rear wet disc brakes.

The Hitachi wet disc brake is engineered for long service life even in the most extreme environments. The wet disc brakes are located on the rear axle and provide service braking, secondary braking, and retarding. The brakes are a multi-plate design, and continuously oil-cooled. The sealed design protects against environmental contamination for prolonged service life. The wet disc brake is designed with automatic retraction to prevent drag. Separate pedals activate the service braking and retarding functions.

Two independent circuits within the service brake system provide fully modulated reserve braking capability. System also incorporates automatic application when loss of pressure is detected.

Dry disc mounted on differential input shaft. Controlled by a toggle switch on the dash. Automatically applied if brake hydraulic pressure is lost.

Foot-operated valve controls all-hydraulic actuation of oil-cooled wet disc brakes on rear axle. System provides modulated pressure to rear brakes for constant speed control.

Through activation of a switch by the operator, a solenoid is energized, sending full brake pressure to apply the rear Wet Disc brakes. For use during the load and dump cycles.

ROPS complies with ISO 3471 and SAE J1040-May 94. FOPS complies with ISO 3449. Double wall construction of 11 gauge inner and outer steel panels, lends itself to a more structurally sound cab. Multiple layered floor mats act to absorb sound and control interior temperature.
A properly maintained cab from Hitachi, tested with doors and windows closed per work cycle procedures in ISO 6394: 1998 (dBA), results in an operator sound exposure Leq (Equivalent Sound Level) of 81 dB(A).
A three-point rubber iso-mount arrangement to the deck surface minimizes vibration to the operator compartment.

A removable front panel allows easy access to service brake valves, retarder valve and heater assembly. A removable cover located behind the operators seat provides easy access to the Transmission Contoller (TCU), Central Contoller (CCU) and all electrical junction points.

A flat panel style dashboard positions controls within easy reach and visual contact. A full complement of easy-to-read gauges, automobile type monitor with warning system, a spacious environment, multiple position adjustable seat, tilt/telescopic steering wheel, filtered cab ventilation and door locks all contribute to operator convenience, control and comfort.

The ACCU-TRAC suspension system features independent trailing arms for each front wheel with NEOCON struts, containing energy absorbing gas and compressible NEOCON-E (TM) fluid, mounted between the king pins and the frame. This arrangement allows a wider front track that provides a better ride, improved stability and a reduced turning circle.
The rear axle housing has an A-frame mounting. The rear NEOCON struts are mounted in a more vertical position which allows a more pure axial loading and reduces the tractive and braking forces transmitted to the nose cone.

NEOCON struts outperform competitive strut designs by improving isolation, stability, and control. Improved isolation means reduced impact loading on the structural members of the machine and greater operator comfort, resulting in longer equipment life and increased productivity. Improved stability means more consistent dynamic response of the machine to fluctuating load energy, resulting in predictable machine performance. And improved control means better machine maneuverability.

The frame and ACCU-TRAC suspension system are designed to work in unison to provide maximum structural integrity and operator comfort. The fabricated rectangular frame rail construction provides superior resistance to bending and torsional loads while eliminating unnecessary weight.
The unique ACCU-TRAC independent trailing arm suspension absorbs haul road input, minimizing suspension-induced frame twisting while providing independent tire action. NEOCON ride struts are mounted with spherical bushings, eliminating extreme sidewall forces by ensuring a purely axial input to the ride strut. The wide track stance of the ACCUTRAC suspension system and the long wheel base assure a more stable, comfortable ride.

The body has been made to the flat floor, flat tail chute design.
The rear hinge has been designed to cause the hinge pin to float when the body is in the fully lowered position.
The weight of the body and payload is distributed across rubber body pads that are evenly spread across the length of the body rail-box that rests on the truck frame.
High tensile strength 400 BHN abrasion-resistant alloy steel is used in the thickness of:

High yield strength alloy steel is also used for canopy side members and floor stiffeners. The Hitachi horizontal stiffener design minimizes stress concentrations.
Load shocks are dissipated over the entire body length. Closely spaced stiffeners provide additional protection by minimizing distances between unsupported areas.

NOTES:
Diagonal lines represent total resistance (Grade % plus rolling resistance %).
Charts based on 0 % rolling resistance, standard power of engine, standard tires and gearing unless otherwise stated.
1. Find the total resistance on diagonal lines on right-hand border of rimpull or retarder chart.
2. Follow the diagonal line downward and intersect the NMW or GMW weight line.
3. From intersection, read horizontally right or left to intersect the rimpull or retarder curve.
4. Read down for machine speed.