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G series

G series
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G series

Product catalog summary
Overview
The G-series Motor Graders, including models 670G, 672G, 770G, 772G, and 872G, are designed to enhance productivity and durability. They feature a nine-litre PowerTech diesel engine and are available in tandem or six-wheel drive configurations.
Specifications
Models vary in net power, torque, and weight. For example, the 670G and 672G have a net power of 138 kW, while the 872G offers 205 kW. They include heavy-duty transmissions and large articulation joint roller bearings for durability.
Visibility and Comfort
The graders have a spacious cab with floor-to-ceiling tinted glass for visibility. The operator station includes a color LCD monitor for diagnostics and control, and an efficient HVAC system for comfort.
Blade and Control Features
Various blade configurations are available, including front, mid-mount, and rear scarifiers. The Event-Based Shifting (EBS) transmission ensures smooth gear changes, and the Pressure-Compensated Load-Sensing (PCLS) hydraulics provide precise control.
Maintenance and Serviceability
Maintenance is simplified with swing-out coolers, easy-access filter banks, and auto-reversing fans. Service intervals are extended, with engine oil changes every 500 hours and transmission fluid changes every 2,000 hours.
Technical Data
Detailed specifications for models 670G and 672G include engine details, transmission, hydraulics, blade functions, and operating weights. For instance, the 670G has a net engine power range of 108-138 kW and a net peak torque of 848 Nm.
Engine Specifications
The document details John Deere PowerTech™ engines, specifically the 6090H model, compliant with EU Stage 2 non-road emission standards. The 872G model has a net engine power ranging from 160 kW to 205 kW and a net peak torque of 1,353 Nm at 1,000 rpm.
Cooling System
The cooling system optimizes fuel consumption with a hydraulic-driven, variable-speed fan drive, including an auto-reversing fan and features for easy maintenance.
Powertrain and Transmission
The powertrain includes a six-wheel drive with an automatic dual-path hydrostatic drive. The transmission is a direct-drive John Deere PowerShift Plus™ with modulated shift-on-the-go and Event-Based Shifting (EBS).
Hydraulics
The hydraulic system is closed-center, pressure-compensated load-sensing (PCLS) with a variable-displacement piston pump, a maximum pump flow of 212 l/min, and a maximum system pressure of 18,961 kPa.
Blade Functionality
The blade function is all-hydraulic with industry-standard lever placement, including a float position and seven discrete saddle positions.
Electrical System
The electrical system operates at 24 volts with solid-state load centers and sealed-switch modules, including multiple lighting options.
Serviceability
Refill capacities include a 416.4-liter fuel tank, a 49.2-liter cooling system, and a 53.0-liter hydraulic reservoir. Operating weights for different models can reach up to 21,772 kg.
Maximum Travel Speeds
The machine can achieve speeds from 3.9 km/h to 45.0 km/h depending on the shift lever position.
Front Axle
Features a total oscillation of 32º and a wheel lean angle of 20º in each direction.
Differentials
Utilizes a spiral bevel, hydraulically actuated clutch type, with options for manual or automatic differential lock.
Steering
All models include all-hydraulic power-frame articulation for enhanced maneuverability and productivity.
Turning Radius
The turning radius is 7,210 mm with front steer and articulation.
Articulation
Both right and left articulation is 22º.
Final Drives
Inboard-mounted planetary sealed in cooled, filtered oil.
Brakes
Foot-controlled, hydraulically operated, multiple wet-disc brakes sealed in pressurized, cooled, filtered oil.
Parking Brake
Automatically spring applied, hydraulically released, oil-cooled, self-adjusting (ISO 3450).
Hydraulics
Closed-centre, pressure-compensated load-sensing system with a maximum pump flow of 217 l/min and a maximum system pressure of 18,961 kPa.
Blade Function
All-hydraulic controls with industry-standard lever placement, including a float position and seven discrete saddle positions.
Electrical
Features a solid-state load centre and sealed-switch module with a 24-volt system and multiple lighting options.
Draft Frame (Drawbar)
Welded box construction with a double ball-and-socket pivot connection.
Circle
Welded construction with a 1,524 mm diameter, 360º rotation, and hydraulic motor drive.
Moldboard
High-strength, wear-resistant steel with a length of 4,270 mm and height of 686 mm.
Rear Ripper/Scarifier
Parallelogram linkage with hydraulic float and integrated hitch, featuring a ripper width of 2,210 mm and a scarifier width of 2,180 mm.
Operator Station
Equipped with a cab featuring ROPS and FOPS standards and air conditioning.
Tyres/Wheels
17.5 - 25 in 12 PR L4 Bias on multi-piece rims.
Serviceability
Various refill capacities including a fuel tank of 416.4 l and a hydraulic reservoir of 53.0 l.
Operating Weights
Typical operating weight is 20,443 kg with a maximum operating weight of 22,054 kg.
Support and Services
Bell Equipment offers comprehensive support including financing options, training solutions, service and support, parts supply, and maintenance contracts.
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Catalog excerpts

G series-2

In tandem or six-wheel drive configurations. Each of these brawny blades comes standard equipped with the same heavy-duty durability and uptime-boosting features including a fuel-efficient nine-litre PowerTech™ diesel engine. Easy-access filter bank. Simple-to-clean swing-out coolers. That’s only the beginning. To learn more about the value-added advantages that separate the G-series from the rest of the pack, read on, then contact your Bell Equipment dealer for further details. Net power Net peak torque Torque rise Typically equipped weight Blade pull 12 800 kg 1 227 Nm Net peak torque...

 Open the catalog to page 2
G series-3

The low-effort mechanical control levers are arranged in the familiar industry-standard pattern, and deliver smooth, predictable response. Long-term durability is bolstered by larger-than-usual articulation joint roller bearings, big-displacement wet-sleeve diesel engines, and heavy-duty transmissions, to list just a few. Tier 2- certified fuel-efficient nine-litre diesel engine deliver generous displacement, power, and lugging ability.

 Open the catalog to page 3
G series-4

Colour LCD monitor gives pushbutton access to a wealth of machine info including vital and general operating conditions, diagnostic codes, and the activity behind you (when equipped with camera). In addition,auxiliary attachment flow rates can be adjusted through the monitor. Sealed-switch module provides pushbutton control of 25 machine functions including keyless start. When enabled, keyless start requires a numeric pass code that helps prevent unauthorized machine operation. An alternate mounting position on the right-side ROPS post makes it easy to relocate the monitor. Which grader’s visibility...

 Open the catalog to page 4
G series-5

It’s easy to see why these graders are destined to become industry favourites. Visibility is clearly unsurpassed, with a large expanse of floor-to-ceiling tinted glass, narrow front console, and streamlined saddle arms giving way to a commanding view of the work at hand. What’s more, the spacious walk-through cab’s many amenities provide all of the fatigue-beating comfort and quiet an operator could ever want. So you can count on the kind of productivity you need.

 Open the catalog to page 5
G series-6

Levels everyting but the playing fiel Throat clearance between the top of the blade and bottom of the circle has increased significantly for better material flow across the blade. Blade clearance has also increased making it easier to navigate over obstacles. Jackscrew adjusted sideshift wear inserts keep the moldboard tight and precise. Takes only minutes to return tolerances to factory spec. Exclusive ball-and-socket draft-frame pivot and seven-position saddle provide best-inclass blade setup and improved ditch cutting, ditch cleaning, and reach outside the tyres. Choose from front scarifier,...

 Open the catalog to page 6
G series-7

Best-in-class lever efforts are combined with Pressure-Compensated Load-Sensing (PCLS) hydraulics to ensure consistent, predictable, and precise response. Automatic differential lock stays engaged when travelling straight, disengages in turns exceeding 10 degrees, and re-engages when returning to straight. Withfive true working speeds below 25 km/h and a top speed of 28 km/h, it’s easy to match ground speed to the work. AutoShift (option) automatically shifts gears four through eight, for even easier operation. 7

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G series-8

Quality built, Productivity Guara Reversing fan automatically cycles at predetermined intervals, ejecting debris from the radiator and cooler cores. Or choose your own cleaning cycles through the monitor. Front axles are built to last with exclusive heavy-duty tapered roller bearing king pins. In addition, steel guards and thick rubber coverings protect the hoses on sixwheeldrive models. Switch module and electrical centre employ circuit-board technology that reduces connections from 25 to 1, and wires from 100 to 4. Solid-state sealed switches keep out moisture, debris, and are proven reliable...

 Open the catalog to page 8
G series-9

Downtime is lost time. Which is why we loaded-up these graders with durability-enhancing advantages that promise to deliver years of trouble-free service. Large displacement heavy-duty wet-sleeve diesel engines. Larger-than-usual axle shafts, differential locks, hydraulic cylinders, and front axles. Biggest-in-class articulation joint roller bearings. And solid-state electronics and sealed switch modules, to list just a few.

 Open the catalog to page 9
G series-10

Dynamic Control w 6-Wheel Drive Steering system automatically adjusts the speed of the outside front tyre while increasing pull to provide full power turns. Power is nothing without control. On our six wheel-drive graders, the front wheels engage smoothly and in sync with the rear tandems - making them highly adept at finishing. Six-wheel drive enables these graders to work across steep slopes, carry big loads through corners, and direct the front wheels while ditching without spinning out. Exclusive horsepower-management system balances the demand between the front and rear wheels, delivering...

 Open the catalog to page 10
G series-11

Bell tandem-drive graders are highly productive. But if you want to improve your ground game even more, choose a six-wheel-drive configuration. Putting their entire weight and all six tyres to work, their job-proven dual-path hydrostatic drive boosts productivity in all kinds of work. And enables them to accomplish almost everything easier and with fewer passes than their conventional counterparts.

 Open the catalog to page 11
G series-12

Open wide and be awed Unlatch the large side panels and you’ll discover the many ways these graders minimise maintenance. And help keep daily operating costs low. Our exclusive swing-out coolers and hinged fan provide wide-open access to both sides of the cores for simplified clean-out. Grouped same-side daily routine. Easy-to-check sight gauges and fluid reservoirs. Quick-change filters. Convenient fluid-sample ports and advanced self-diagnostics- the G-series is loaded with time and moneysaving features that help keep maintenance manageable. To help conserve fuel, auto-idle automatically reduces...

 Open the catalog to page 12
G series-13

Compare the total cost of fluids, filters, parts, and labour for recommended maintenance and you’ll discover the savings are substantial. Maintenance personnel will appreciate the unique easyaccess hydraulic, transmission, and differential filter bank. Large service doors open wide, and same-side daily checkpoints are conveniently grouped for easy ground-level access. Standard service compartment lights illuminate the way. Never Grease™ is the word for significant savings in operating costs. These no-maintenance pin joints eliminate numerous zerks and the attention they demand. Optional quick...

 Open the catalog to page 13
*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.