Resiliently mounted to the main frame with all-new cab mounts that reduce vibration and sound, the integral ROPS is designed as an extension of the truck frame. The ROPS/FOPS structure provides “five-sided protection” for the operator.

Cat dry front and rear oil-cooled, multiple disc brakes are now hydraulically controlled, reducing maintenance costs. The 773F brakes provide exceptional, fade-resistant braking and retarding for maximum performance and productivity in all haul-road conditions.

Standard ARC electronically controls braking on grade to maintain engine at approximately 1,900 rpm (adjustable from 1,850-1,950 rpm in increments of 10). ARC is deactivated when the operator applies the brakes or throttle.

ARC allows the operator to maintain optimum engine speeds for up to 15 percent faster downhill hauls and greater productivity.

With the introduction of the 773F, Caterpillar offers five application-specific body systems. Dual slope and flat floor body offerings are available in three steel configurations and two rubber configurations. The new dual slope and flat floor body systems will continue to use fully fabricated, mild steel structures, offering a strong, yet weldable underbody structure. All interior, steel body surfaces that come in contact with material are fabricated from 400 BHN steel to provide superior wear characteristics and resistance to impact. Wide box-section ribs provide excellent durability and impact support in the floor, front-wall, sidewall, and top rail areas. Full-length stringer rails enhance strength and rigidity throughout the body. Other new features that further enhance durability of the understructure include:

• The body sidewall ties directly in with the floor, providing increased strength in the sidewalls.
• Thickness of ribs increased to 10 mm and the number of floor ribs have been increased from 7 to a total of 9 ribs.
• Front wall body rest supports are integrated into the front wall structure for enhanced durability.
• Front wall is 400 BHN and the thickness is increased from 10.2 mm (0.4 in) to 16.0 mm (0.63 in), eliminating the need for additional liners for impact resistance in most applications.

Your Cat dealer can help you manage to target payload to maximize equipment use, ensure safe operation, increase productivity and lower cost-per-ton.

• Underloading increases costs due to lost payloads, underutilizes equipment, and increases cost-per-ton.
• Overloading causes excessive wear on vehicle components, such as brakes, tires and drive train, reducing component life and increasing maintenance costs and repairs.

Designed to work as an optimum pass/match system, the 773F is best sized to match the 988H Wheel Loader, with a 4 pass/match, the 990H Wheel Loader, with 3 pass/match, and the 385C Hydraulic Excavator with a 6 pass match.