770 Off-Highway Truck

Engineered for performance, designed for comfort, built to last.

Top Performance. Developed specifically for construction, mining and quarry applications, the 770 optimizes demands for lower cost per ton. Reliable, Durable Operation. Rugged construction and easy maintenance procedures ensure long life with low operating costs.

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Specifications

Engine
Engine Model	Cat® C15 ACERT™
Rated Engine Speed	1800 RPM	1800 RPM
Gross Power - SAE J1995	381 kW	511 hp
Net Power - SAE J1349	355 kW	476 hp
Flywheel Power
Net Power - ISO 9249
Net Power - 80/1269/EEC	355 kW	476 hp
Number of Cylinders	6
Bore	137 mm	5.4 in
Stroke	171 mm	6.7 in
Displacement	15.2 L	927.6 in3
Net Power - ISO 9249:1997	355 kW	476 hp

Weights - Approximate
Target Gross Machine Operating Weight	71214 kg	157000 lb
Chassis Weight	24213 kg	53380 lb
Body Weight	9999 kg	22043 lb

Operating Specifications
Nominal Payload Class	36.3 tonnes	40 tons
Top Speed - Loaded	74.8 km/h	46.5 mph
Body Capacity - Struck
Body Capacity - SAE 2:1	25 m3	32.8 yd3
Maximum Capacity
Steer Angle
Turning Diameter - Front
Turning Circle Clearance Diameter

Transmission
Forward 1	12.1 km/h	7.5 mph
Forward 2	16.6 km/h	10.3 mph
Forward 3	22.5 km/h	14 mph
Forward 4	30.3 km/h	18.8 mph
Forward 5	40.9 km/h	25.4 mph
Forward 6	55.2 km/h	34.3 mph
Forward 7	74.8 km/h	46.5 mph
Reverse	15.9 km/h	9.9 mph

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

Brakes
Brake Surface - Front	1395 cm2	216 in2
Brake Surface - Rear	40266 cm2	6235 in2
Brake Standards	ISO 3450: 1996

Body Hoists
Pump Flow - High Idle	515 L/min	136 gal/min
Relief Valve Setting - Raise	17255 kPa	2500 psi
Relief Valve Setting - Lower	3450 kPa	500 psi
Body Raise Time - High Idle	9.5 Seconds	9.5 Seconds
Body Lower Time - Float	12.5 Seconds	12.5 Seconds
Body Power Down - High Idle	12.5 Seconds	12.5 Seconds

Capacity - Dual Slope - 100% fill factor
Struck	16.4 m3	21.5 yd3
Heaped 2:1 (SAE)	25.1 m3	32.8 yd3

Capacity - Flat Floor - 100% fill factor
Struck	16.4 m3	21.5 yd3
Heaped 2:1 (SAE)	25.1 m3	32.8 yd3

Capacity - Flat Floor Lined - 100% fill factor
Struck
Heaped 2:1 (SAE)

Weight Distributions - Approximate
Front Axle - Empty	48 %	48 %
Front Axle - Loaded	34 %	34 %
Rear Axle - Empty	52 %	52 %
Rear Axle - Loaded	66 %	66 %

Suspension
Effective Cylinder Stroke - Front	234 mm	9.2 in
Effective Cylinder Stroke - Rear	149 mm	5.9 in
Rear Axle Oscillation	5.4 Degrees	5.4 Degrees

Approximate Weights - Dual Slope
Front axle - empty
Front axle - loaded
Rear axle - empty
Rear axle - loaded

Approximate Weights - Flat Floor Lined
Front axle - empty
Front axle - loaded
Rear axle - empty
Rear axle - loaded

Service Refill Capacities
Fuel Tank	530 L	140 gal
Cooling System	114 L	30 gal
Differentials and Final Drives	83 L	22 gal
Steering Tank	34 L	9 gal
Steering System (Includes Tank)	56 L	15 gal
Torque Converter / Brake / Hoist Hydraulic Tank
Brake / Hoist System (Includes Tank)
Torque Converter / Transmission System
Torque Converter / Transmission System (Includes Sump)

Tires
Standard Tire	18.00R33 (E4)

ROPS
ROPS / FOPS Standards	.

Sound
Sound Standards	.

Steering
Steering Standards	ISO 5010:1992
Steer Angle	40 Degrees	40 Degrees
Turning Circle Clearance Diameter

Dimensions
Height to Top of ROPS	3911 mm	12.83 ft
Overall Body Length	8172 mm	26.81 ft
Inside Body Length	5549 mm	18.21 ft
Overall Length	8740 mm	28.67 ft
Wheelbase	3960 mm	13 ft
Rear Axle to Tail	2590 mm	8.5 ft
Ground Clearance	680 mm	2.23 ft
Dump Clearance	464 mm	1.52 ft
Loading Height - Empty	3120 mm	10.24 ft
Rear Sidewall Height
Inside Body Depth - Max	1326 mm	4.35 ft
Overall Height - Body Raised	8280 mm	27.17 ft
Operating Width	4751 mm	15.59 ft
Centerline Front Tire Width	3110 mm	10.2 ft
Engine Guard Clearance	673 mm	2.21 ft
Overall Canopy Width
Outside Body Width	3960 mm	13 ft
Inside Body Width	3698 mm	12.13 ft
Front Canopy Height	4140 mm	13.58 ft
Rear Axle Clearance	508 mm	1.67 ft
Centerline Rear Dual Tire Width	2536 mm	8.32 ft
Overall Tire Width	3693 mm	12.12 ft

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Power Train — Engine	The Cat® C15 engine with ACERT™ Technology is built for power, reliability and efficiency for superior performance in the toughest applications.
Power Train — Transmission	Cat power train delivers more to the ground for greater productivity and lower operating costs.
Structures	Rugged Cat structures are the backbone of the 770 off-highway truck's durability.
Engine — Power Train Integration	This system electronically combines critical power train components to work together more intelligently to optimize overall truck performance.
Brake System	Reliable braking with superior control gives the operator the confidence to focus on productivity.
Operator's Station	Ergonomically designed for operator comfort, superior control and high productivity.
Serviceability	Less time spent on maintenance means more time on haul roads.
Truck Body Systems	Cat designed and built for rugged performance and reliability in the toughest hauling applications.
Information & Monitoring Systems	Vital machine health and payload data keeps the 770 peforming at peak production levels.
Customer Support	Caterpillar® dealers have what it takes to keep trucks productive.
Safety	Caterpillar machines and systems are designed with safety as the first priority.

Optional	Optional Body Systems:
Standard	OPERATOR ENVIRONMENT
Standard	POWER TRAIN
Optional	Automatic Lube System
Optional	Cat Compression Brake
Standard	ANTIFREEZE
Standard	ELECTRICAL
Optional	Clustered Grease Fittings
Optional	Engine Coolant Heater - 120V
Standard	PRODUCT LINK COMMUNICATIONS
Standard	GUARDS
Optional	Engine Coolant Heater - 240V
Standard	SUSPENSION SYSTEM
Optional	Ether Starting Aid
Standard	OTHER STANDARD EQUIPMENT
Optional	Exhaust Diverter/Muffler
Optional	Fast Fill Fuel System
Optional	Fast Fill Fuel System Non-Pressurizing
Optional	Fuel Heater Kit
Optional	Integrated Brake Control
Optional	Muffler
Optional	Sound Suppression Package
Optional	Spare Rim (330 mm) 13 in
Optional	Traction Control System (TCS)
Optional	Truck Production Management System (TPMS)
Optional	Wheel Chocks