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Structural Integrity

Designed for years of off-road service

Braking Performance

Caterpillar has made hydraulic “wet disc” braking standard on all four corners of the 777G. In addition, parking brake actuation is now included on front wheels as well as back wheels. These new standard features increase the braking performance and slope holding capabilities of the truck. G Series has increased the number of springs in its brake design. This increases the force available to disengage the brakes ensuring clearances are maintained, reducing wear. A new brake wear indicator can be found on the rear wheels to help you monitor brake life.

Extending brake life can also be achieved by choosing the optional Cat Engine Brake. This Caterpillar design works in conjunction with the automatic retarder control (ARC) to slow the machine.

Rear Wheel Steel Spindles

G Series wheel spindles are solid steel and interchangeable from one side to the other extending their useful service life.

Inverted Rear Cylinders

For G Series, Caterpillar has inverted the rear suspension cylinders to better protect the rods, keeping them cleaner for longer durations.

Structures

The 777G frame has adjustments to the front bumper that improve the approach angle of the truck. Mild steel, box section construction, castings in high stress areas and a high percentage of robotic welding provide long life, ease of welding in the eld and reliable performance. To support the additional torque being produced by the 777G power train, Caterpillar has updated the design of the rear axle housing making it larger with a built-in site gauge to facilitate daily maintenance checks. Customers can choose optional rear axle ltration and forced lubrication for long-life durability in challenging applications.

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Page 6 - brochures

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