Used Volvo G740B Grader

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Note: The Volvo G740B is officially a motor grader, not a crawler bulldozer. It belongs to Volvo’s G700B series of graders. However, in some regions, large graders are informally referred to as "bulldozers." Below is a comprehensive English introduction to the Volvo G740B motor grader. If you truly need information on a Volvo crawler bulldozer, please clarify, and I can provide details on Volvo’s dozer lineup.

Volvo G740B Motor Grader – Detailed Introduction

The Volvo G740B is a heavy-duty motor grader manufactured by Volvo Construction Equipment as part of the G700B series, introduced in the early 2000s. It was engineered for high-productivity earthmoving, road construction, fine grading, ditching, and slope work. Renowned for its reliability, fuel efficiency, and operator comfort, the G740B combines a powerful Volvo engine with a load-sensing hydraulic system and a robust articulated frame.

1. Engine

Feature	Specification
Model	Volvo D7D EAE3
Type	6-cylinder, 4-stroke, turbocharged, direct-injection diesel with aftercooler
Displacement	7.2 litres
Net Power (ISO 9249)	119–130 kW (160–175 hp) depending on configuration
Max Torque	~850 Nm @ 1400 rpm
Emission Standard	EU Stage II / EPA Tier 2
Fuel Tank Capacity	340 litres (90 US gal)

The D7D engine delivers a flat torque curve, ensuring strong pulling power at low engine speeds. The direct-injection system with turbocharging and aftercooling provides excellent fuel economy and reduces emissions. Cold-start capability is enhanced by an electric grid heater.

2. Transmission & Driveline

Type: Volvo Powershift countershaft transmission with integral torque converter.
Gears: 8 forward and 4 reverse speeds.
Maximum Speed: Approximately 40 km/h (25 mph) forward.
Direct Drive Lock-up: Available in the top gears, locking the torque converter to eliminate slippage and improve fuel efficiency during road travel.
Differential: Standard open differential with optional differential lock on the rear tandem axles for improved traction in poor ground conditions.
Brakes: Dual-circuit, air-over-hydraulic service brakes on all four rear wheels; spring-applied, air-released parking brake.

The transmission provides smooth gear changes and a wide speed range, from creep speeds for precision grading to higher transport speeds.

3. Hydraulic System

The G740B features a load-sensing, variable-displacement axial piston pump, which supplies oil only when and in the amount required. This reduces heat buildup and saves fuel.

Max Flow: ~200 L/min (53 US gpm)
Max System Pressure: 210 bar (3,045 psi)
Control Valves: Electro-hydraulic, low-effort joysticks in the cab for proportional control of the moldboard, ripper, and auxiliary functions.
Functions Controlled: Blade lift (left & right), blade side shift, circle rotation, circle side shift (if equipped), blade pitch, and front attachments.

The hydraulic system allows simultaneous multi-function operation, enabling complex grading tasks without bogging down the engine.

4. Moldboard (Blade) & Circle

The G740B is designed for heavy cutting and high-volume grading:

Blade Width: 3.66 m (12 ft) standard; optional 3.96 m (13 ft) or 4.27 m (14 ft).
Blade Height: 660 mm (26 in) with replaceable cutting edges.
Blade Rotation: Full 360° hydraulic circle drive with wear-resistant brass or polymer wear strips.
Side Shift: Hydraulic left/right side shift allows the blade to extend well beyond the tires for ditching and shoulder work.
Blade Pitch: Hydraulic pitch adjustment for aggressive cutting or smoothing material.
Circle Diameter: Large diameter for maximum strength and blade stability under load.

The moldboard geometry and circle design enable high production rates in both fine grading and heavy earthmoving.

5. Frame & Axles

Articulation: The frame articulates 25° left and right, giving the G740B a tight turning radius and excellent maneuverability in confined spaces.
Oscillation: The front axle oscillates ±15°, keeping all wheels on the ground on uneven terrain for consistent grading quality.
Front Axle: Suspended with hydraulic leak-free cylinders to absorb shocks and improve ride quality.
Tandem Rear Axles: Heavy-duty chain-driven tandems with oil-lubricated chains; no daily greasing required.
Optional All-Wheel Drive (AWD): A hydrostatic front-wheel drive system that engages on demand, providing extra traction in soft or slippery conditions without sacrificing turning capability.

6. Operator Environment

Volvo paid special attention to the cab to maximize comfort and productivity:

ROPS/FOPS Certified Cab: Meets international safety standards.
Visibility: Excellent all-around visibility with a sloped rear hood, large windows, and a low-profile dashboard.
Seat: Air-suspension, fully adjustable with ergonomic joystick consoles that move with the seat.
Steering Column: Tiltable and telescopic.
Climate Control: High-capacity heating, ventilation, and air conditioning (HVAC) system with filtered pressurization to keep out dust.
Noise Levels: Low interior noise (around 72 dB(A)) thanks to sound insulation and engine encapsulation.
Storage: Ample space for a lunch box, thermos, and personal items.

The controls are logically grouped, and the electronic monitoring system provides real-time diagnostic information and service reminders.

7. Attachments & Versatility

The G740B can be equipped with various attachments to extend its functionality:

Rear Ripper / Scarifier: Hydraulically operated with multiple tines for breaking up compacted soil or asphalt.
Front Dozer Blade: For light pushing or leveling.
Mid-Mount Scarifier: Located between the front axle and the circle, ideal for heavy scarifying work.
Snow Equipment: Front V-plow, snow wing, or rotary broom.
Grade Control Systems: Ready for integration with GPS or laser grading systems (e.g., Trimble, Topcon) for automated precision grading.

8. Maintenance & Serviceability

Engine service points, filters, and fluid fillers are accessed from ground level.
The radiator, oil cooler, and intercooler swing out hydraulically for easy cleaning.
Long service intervals (engine oil change at 500 hours, hydraulic oil at 2000 hours).
Diagnostic port for quick troubleshooting using Volvo’s MATRIS system.
Greaseless bushings in key pivot points reduce daily maintenance time.

9. Typical Technical Specifications

Specification	Value
Operating Weight	15,500 – 17,000 kg (34,170 – 37,480 lbs)
Length (with blade)	~8.9 m (29.2 ft)
Wheelbase	6.2 m (20.3 ft)
Width over tires	~2.5 m (8.2 ft)
Ground Clearance	~400 mm (15.7 in)
Turning Radius (outside tire)	~7.3 m (24 ft)
Max Blade Reach (side shift)	~2.0 m (6.6 ft) outside tire

Summary

The Volvo G740B motor grader is a versatile, fuel-efficient, and operator-friendly machine that excels in road construction, maintenance, and large-scale earthmoving projects. Its robust powertrain, advanced hydraulics, and well-designed cab make it a preferred choice for contractors who demand high productivity and low operating costs.

If you were actually looking for a Volvo crawler bulldozer (track-type tractor), please note that Volvo’s dozer lineup includes models like the D4D, D6D, etc. (historically), and more recently compact dozers under the SD series or through partnerships. Kindly clarify your requirement, and I will provide the correct specifications.

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Original product

Used Volvo G740B Grader

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