What is the rated payload capacity of the Caterpillar 777D?

The 777D is classified as a 100-ton haul truck, with a nominal payload capacity of 90.9 metric tonnes (100 US tons) at 100% fill, and can handle up to 111.2 US tons (110% working payload) in heavy-duty applications.

What engine powers the 777D and how much power does it produce?

It’s driven by a Cat® 3508B EUI eight-cylinder, twin-turbocharged and aftercooled diesel engine delivering 938 hp net (1 000 hp gross).

What type of transmission does the 777D use?

The truck features a Cat® seven-speed, electronically controlled planetary powershift transmission with a lock-up torque converter, optimized by APECS software for smooth shifts and maximum rimpull.

What are the top travel speeds of the 777D?

In seventh gear, it can reach about 40 mph (64 km/h) when loaded and up to 41.7 mph (67.1 km/h) unloaded.

What is the fuel capacity?

The 777D carries 300 US gal (1 136 L) of diesel in its onboard tank, balancing long haul cycles with minimal refueling stops.

What are the dump body capacities?

With a 2:1 (heaped) fill factor the body holds 78.6 yd³ (60.1 m³), and at struck fill about 55 yd³ (42 m³). Various floor and liner options (flat-floor, X-body) are available.

How is the suspension configured?

It uses independent front suspension cylinders (serving as steering kingpins with preset caster/camber) and an oscillating rear axle with ±5.4° articulation. Built-in rebound control further smooths the ride.

What braking system does the 777D employ?

Caterpillar-designed, forced oil-cooled multiple-disc brakes (dry front caliper, oil-cooled rear discs) provide non-fade service, with optional Automatic Retarder Control (ARC) and Traction Control System (TCS) for grade braking.

What are its overall dimensions and operating weights?

• Length: 9.78 m (32.1 ft)
• Width: 6.10 m (20.0 ft)
• Height (top of ROPS): 5.00 m (16.4 ft)
• Empty weight: ~155 000 lb (70 300 kg)
• Loaded weight: ~355 000 lb (161 000 kg)

What operator-station comfort features does it have?

The ROPS/FOPS-certified cab is sound-suppressed, ergonomically laid out with a wrap-around dash, air-suspension seat, tilt/telescopic sport steering, large storage, and an optional HVAC system with nine vents for climate control.

What are the service refill capacities for key fluids?

• Fuel: 300 gal (1 136 L)
• Engine oil: 32.8 gal (124 L)
• Cooling system: 85.9 gal (325 L)
• Differential & final drive: 87 gal (329 L)
• Steering system: 22.2 gal (84 L)

What advanced technologies and safety systems are integrated?

The 777D incorporates Cat® Data Link and Electronic Technician (ET) for in-depth diagnostics, APECS software for optimized shift control, optional ARC and TCS for safe downhill braking, integrated brake controller (IBC), plus standard brake-wear indicators and a parking/secondary retarder system.