770 Off Highway Truck

Operating Specifications

Nominal Payload Class (100%)	36.3 tonnes
Top Speed – Loaded	74.8 km/h
Body Capacity – SAE 2:1	25 m3
Target Payload Capacity	36.3 tonnes

Engine

Engine Model	C15 ACERT
Rated Engine Speed	1800 RPM
Gross Power – SAE J1995	381 kW
Net Power – SAE J1349	355 kW
Net Power – 80/1269/EEC	355 kW
Number of Cylinders	6
Bore	137 mm
Stroke	171 mm
Displacement	15.2 L
Net Power - ISO 9249:1997	355 kW
Peak Torque	2320 N·m

Weights – Approximate

Target Gross Machine Operating Weight	71210 kg
Chassis Weight	24213 kg
Body Weight	9999 kg

Capacity – Dual Slope – 100% Fill Factor

Struck	16.4 m3
Heaped 2:1 (SAE)	25.1 m3

Capacity – Flat Floor – 100% Fill Factor

Struck	16.4 m3
Heaped 2:1 (SAE)	25.1 m3

Weight Distributions – Approximate

Front Axle – Empty	48 %
Front Axle – Loaded	34 %
Rear Axle – Empty	52 %
Rear Axle – Loaded	66 %

Transmission

Forward 1	12.1 km/h
Forward 2	16.6 km/h
Forward 3	22.5 km/h
Forward 4	30.3 km/h
Forward 5	40.9 km/h
Forward 6	55.2 km/h
Forward 7	74.8 km/h
Reverse	15.9 km/h

Final Drives

Differential Ratio	2.74:1
Planetary Ratio	4.80:1
Total Reduction Ratio	13.15:1

Brakes

Brake Surface – Front	1395 cm2
Brake Surface – Rear	40266 cm2
Brake Standards	ISO 3450: 1996

Service Refill Capacities

Fuel Tank	530 L
Cooling System	114 L
Differentials and Final Drives	83 L
Steering Tank	34 L
Steering System (Includes Tank)	56 L
Brake / Hoist / Fan Hydraulic Tank	155 L
Brake/Hoist/Fan System (Tank)	277 L
Crankcase	34 L
Transmission / Torque Converter System (Includes Sump)	72 L
Transmission/Torque Converter Sump	53 L

Body Hoists

Pump Flow – High Idle	515 L/min
Relief Valve Setting – Raise	17255 kPa
Relief Valve Setting – Lower	3450 kPa
Body Raise Time – High Idle	9.5 Seconds
Body Lower Time – Float	12.5 Seconds
Body Power Down – High Idle	12.5 Seconds

Suspension

Effective Cylinder Stroke - Front	234 mm
Effective Cylinder Stroke - Rear	149 mm
Rear Axle Oscillation	5.4 Degrees

Sound

Sound Standards

.

ROPS

ROPS/FOPS Standards

.

Dimensions

Height - Top of ROPS	3911 mm
Overall Body Length	8172 mm
Inside Body Length	5549 mm
Overall Length	8740 mm
Wheelbase	3960 mm
Rear Axle to Tail	2590 mm
Ground Clearance	680 mm
Dump Clearance	464 mm
Loading Height – Empty	3120 mm
Inside Body Depth - Max	1326 mm
Overall Height – Body Raised	8280 mm
Operating Width	4751 mm
Centerline Front Tire Width	3110 mm
Engine Guard Clearance	673 mm
Outside Body Width	3960 mm
Inside Body Width	3698 mm
Front Canopy Height	4140 mm
Rear Axle Clearance	508 mm
Centerline Rear Dual Tire Width	2536 mm
Overall Tire Width	3693 mm

Steering

Steering Standards	ISO 5010:1992
Steer Angle	40 Degrees

Tires

Standard Tire

18.00R33 (E4)

Power Train – Engine

The Cat® C15 engine with ACERT™ Technology uses advanced engine technology to reduce emissions without after-treatment. The turbocharged, aftercooled 6-cylinder engine has faster response for superior performance in demanding applications.

Power Train – Transmission

The Cat seven-speed power shift transmission matched with the Cat C15 engine with ACERT Technology provides constant power and efficiency over a wide operating speed range for optimal power train performance.

Structures

The 770 features a mild-steel, box-section type frame to deliver durability and long life with low operating costs. Castings and forgings are strategically placed in high-stress areas to evenly distribute stresses and provide long fatigue life.

Operator’s Station

The 770 features an all new operator station with enhanced visibility, increased operator space and ergonomically designed controls that set new industry standards for operator comfort. All controls and gauges are positioned for optimum efficiency and total machine control.

Engine – Power Train Integration

The Cat Data Link electronically combines engine, transmission, brake and operational information to optimize overall truck performance. Stored diagnostic data can be accessed via the Cat Electronic Technician (Cat ET) service tool to improve troubleshooting and reduce downtime.

Brake System

Front dry disc and rear oil-cooled, multiple disc brakes are now hydraulically controlled, reducing maintenance costs and improving operator control and modulation. They provide exceptional, fade-resistant braking and retarding for maximum performance and productivity in all haul-road conditions.

Truck Body Systems

The 770 offers two body types with six different body liner system selections to accommodate almost any type of application. These body liner systems are designed to maximize strength and durability while providing the lowest cost per ton.

Information and Monitoring Systems

Standard on the 770, the Cat Messenger system provides real-time engine performance and operating data.

Safety

Caterpillar sets the standard when it comes to safety in the design and manufacturing of heavy equipment. Safety is not an afterthought at Caterpillar, but an integral part of all machine and systems designs.

Serviceability

The 770 offers 500-hour engine service intervals – 250 hours more than the 769D. Simplified service and maintenance features combined with improved service access are designed to reduce downtime.

Customer Support

Caterpillar® dealers provide unmatched product support, anywhere in the world. With industry-best parts availability and a wide range of maintenance and service options, Cat dealers have what it takes to keep your hauling machines productive.