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Hyundai Construction Equipment Americas, Inc.
Wheel Loaders HL740-7A

Wheel Loaders HL740-7A

Product catalog summary

Introduction
The document outlines the specifications and features of the Hyundai HL740-7A Wheel Loader, emphasizing its Tier 3 engine, capabilities, optional equipment, and technological advancements.

Specifications

Engine: Equipped with a Cummins QSB6.7 low emission diesel engine, Tier-III compliant, delivering a maximum power of 146 HP.
Transmission: Features a full automatic power shift with electronic control, including soft-shift and quick-shift capabilities.
Hydraulics: Load-sensing steering with a remote cooling fan and automatic boom kickout.
Brakes: Enclosed wet-disc service brakes with a limited slip differential on the front axle.
Tires: Various options including 20.5-25, 16 PR, L3.

Features

Cabin: ROPS/FOPS certified, sound suppressed, with adjustable suspension seat, air conditioning, and ergonomic controls.
Display: Centralized digital display for monitoring machine status and conditions.
Safety: Includes a ride control system, backup alarm, and emergency steering system.
Maintenance: Easy access to engine components, centralized electric controllers, and a remote drain port for fluids.

Performance
The HL740-7A offers two operating modes (Power and Econo) to optimize fuel efficiency and power output, featuring a high-rigidity frame and sealed loader linkage for durability and reduced maintenance.

Optional Equipment
Options include a reversible cooling fan, additional lighting, and various tire options to enhance performance and adaptability to different working conditions.

Conclusion
The Hyundai HL740-7A Wheel Loader is engineered for high performance, efficiency, and comfort, making it ideal for demanding construction applications.

Axle Specifications
The loader features a rigid front axle and an oscillating rear axle with a total oscillation of 24 degrees, hub reduction with planetary reduction at the wheel end, and a limited slip differential at the front. The reduction ratio is 22.846.

Hydraulic System
An open-centered, tandem circuit system with pilot-operated controls, featuring a helical gear type pump with a capacity of 179 liters/min at governed rpm. The control valve is a two-function valve with optional third-function capability, and the relief valve is set at 220 kg/cm² (3,130 psi).

Bucket Controls
Pilot-operated with a single-lever joystick control, the lift circuit has four functions: raise, hold, lower, and float, with adjustable automatic kickout. The tilt circuit has three functions: tilt back, hold, and dump, with an adjustable automatic bucket positioner. Total cycle time ranges from 9.6 to 10.2 seconds.

Brakes
Hydraulically actuated wet disc brakes operate on all four wheels with an independent axle-by-axle system. The parking brake is a spring-applied, hydraulically released wet disc brake in the front axle, automatically applying when brake oil pressure drops.

Steering System
Full hydraulic power steering with a gear type pump delivering 95 liters/min at governed rpm, featuring a double-acting cylinder with a steering angle of 40 degrees in each direction, center-point frame articulation, and a load-sensing, pressure-compensated system.

Service Refill Capacities
Includes 228 liters for the fuel tank, 35 liters for the cooling system, and 165 liters for the hydraulic system, among others.

Catalog excerpts

Some of the Photos may include optional equipment. Tier Low Emissinon Certificoted 2 Automatic Selection Modes Electronic Engine Control System 2 Kick Down Function Modes Engine Protection & O.H System AEB Function Max Power 146 HP 2 Operating Mode : Power & Econo > 23 size="-1">

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The operator can easily control the temperature and air flow . The defrosteron the front windshield and rear windowmakes it convenient for winter working usage. > 2 Pilot-operated controls for bucketoperation by the Joystick are easyand comfortable to operate. Cigar Jack > Some of the Photos may include optional equipment. Cup Holder Magazine Box > Some of the Photos may include optional equipment. The centralized digital display shows the status and conditions of your machine at a glance. Easy-to-read gauges with an instrument panel provide constant, and accurate information. > It is possible...

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This guard helps to prevent possibledamage from load material. Front and rear frames are designed for work in the toughest applications to provide high rigidity for the power train and loader equipment. The high-rigidity frames, together with the reinforced loader linkage, resist loading stress and shock. Inboard type brake discs. Econo Mode Maximum fuel efficiency for general loading > Some of the Photos may include optional equipment. Power Mode Maximum power output for hard digging or climb hill > A master switch disconnects the battery powerto protect the electrical system from excessive...

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New Generation, Innovative Solution in Construction > Accessible grease fittings Simple air filter replacements Chromium - Plated PIN is applied Remote type drain port Hydraulic tank Oil sight gauge Transmission oil port > Grease fittings are highlighted andavailable around the machine for the fast access when doing your service checks. The air cleaner is easily replaceable by turning the wing nut on the outer shell counterclockwise. With the application of Chromium Plated PIN, durability and precision are improved and the life cycle became longer. It is now easier to change your engine oil,...

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Maker/Model Cummins QSB6.7 Bore x Stroke 107 mm (4.21) x 124 mm (4.88Ԕ) Service BrakesParking BrakeEmergency Brake Hydraulically actuated, wet discbrakes actuate all 4 wheelsindependent axle-by-axle system.Single pedal braking includingclutch cut off switch.Spring-applied, hydraulically released wet disc brake in front axle.When brake oil pressure drops, indicator light alerts operator andparking brake automatically applies. TypePumpRelief Valve Setting Cylinder Full hydraulic power steeringGear type, 95 liters/min(26.2 USgpm)@governed rpm210 kg/cm Type 4-cycle, turbocharged, charge aircooled...

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