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770 Off-Highway Truck
789 Next Generation

Operating Specifications

Nominal Payload Class (100%) 42.1 ton (US) - -
Top Speed - Loaded 45.8 mile/h - -
Target Payload (100%) 42.1 ton (US) - -
Maximum Working Payload (110%) 46.3 ton (US) - -
Maximum Allowable Payload (120%)* 50.5 ton (US) - -
Body Capacity - SAE 2:1 32.9 yd³ - -
Note (1) *Refer to Caterpillar 10/10/20 Payload Policy for maximum gross machine weight limitations. - -
Note (2) Target payload and capacity based on Dual Slope body with no liner. Attachment selection will affect payload and maximum gross machine operating weight. - -

Engine

Engine Model Cat® C15 Cat® 3516E -
Rated Engine Speed 1700 r/min - -
Gross Power - SAE J1995:2014 515 hp 2100 hp -
Net Power - SAE J1349:2011 477 hp 1975 hp -
Net Power - ISO 9249 477 hp - -
Net Power - 80/1269/EEC 489 hp - -
Net Power - ISO 14396 508 hp - -
Net Torque - SAE J1349 1834 ft·lbf - -
Number of Cylinders 6 - -
Bore 5.4 in 6.7 in -
Stroke 6.7 in 8.5 in -
Displacement 927.6 in³ 4766 in³ -
Note (1) Power rating applies at 1,700 rpm when tested under the specified condition for the specified standard. Net Power advertised is the power available at the flywheel when the engine is equipped with air intake system, exhaust system, and alternator. -
Note (2) Ratings based on SAE J1995 standard air conditions of 25° C (77° F) and 100 kPa (29.61 Hg) barometer. Power based on fuel having API gravity of 35 at 16° C (60° F) and an LHV of 42 780 kJ/kg (18,390 BTU/lb) when engine used at 30° C (86° F). Optional 1417 kW / 1,900 HP engine rating. -
Note (3) No engine derating required up to 3000 m (9,843 ft) altitude. U.S. EPA Tier 4 Final / EU Stage V optional engine available for applicable markets. -
Note (4) Meets Japan Small Volume Exemption. - -
Emissions Meets U.S. EPA Tier 4 and EU Stage V emission standards. - -
Rated Speed - 1650 r/min -
Emissions Rating - Fuel Optimized -

Weights - Approximate

Target Gross Machine Operating Weight 157000 lb - -
Target Gross Machine Weight 157000 lb - -
Chassis Weight 55948 lb - -
Body Weight 17306 lb 60406 lb -
Note (1) Chassis weight with 100% fuel, hoist, body mounting group, rims, and tires. Consult your tire manufacturer for maximum tire load -
Note (2) Body weight is the standard Dual Slope body with no liner and will vary depending on configuration. Chassis weight with full fuel and fluids, standard and mandatory attachments, hoist, body mounting group, rims, and tires. -
Nominal Rated Payload - 213 ton (US) -
Rated Gross Machine Weight - 715000 lb -

Transmission

Forward - 1 7.4 mile/h 7.8 mile/h -
Forward - 2 10.1 mile/h 10.6 mile/h -
Forward - 3 13.8 mile/h 14.4 mile/h -
Forward - 4 18.5 mile/h 19.4 mile/h -
Forward - 5 25.1 mile/h 26.3 mile/h -
Forward - 6 33.8 mile/h 35.5 mile/h -
Forward - 7 45.8 mile/h - -
Reverse 8.8 mile/h 7.3 mile/h -
Note Maximum travel speeds with standard 18.00R33 (E4) tires. - -
Top Speed - Loaded - 35.5 mile/h -

Final Drives

Differential Ratio 1.92:1 2.35:1 -
Planetary Ratio 4.80:1 10.83:1 -
Total Reduction Ratio 9.26:1 25.46:1 -
Type - Double reduction, planetary with full floating axles -

Brakes

Brake Surface - Front 216 in² - -
Brake Surface - Rear 6235 in² - -
Brake Standards ISO 3450:2011 - -
Note Target gross machine operating weight is 71 214 kg (157,000 lb). - -

Body Hoists

Pump Flow - High Idle 118 gal/min 106.5 gal/min -
Relief Valve Setting - Raise 2750 psi 2749 psi -
Relief Valve Setting - Lower 500 psi - -
Body Raise Time - High Idle 7.5 s 14 s -
Body Lower Time - Float 10 s 16 s -
Body Power Down - High Idle 10 s - -
Type - Twin, two-stage hydraulic cylinders with snubbing valve. -

Capacity - Dual Slope - 100% Fill Factor

Struck 23.01 yd³ - -
Heaped (SAE 2:1)* 32.9 yd³ - -
Note (2) *ISO 6483:1980. - -
Note (1) Contact your local Cat dealer for body recommendation. - -

Capacity - Flat Floor - 100% Fill Factor

Struck 23.01 yd³ - -
Heaped (SAE 2:1)* 32.9 yd³ - -
Note (1) Contact your local Cat dealer for body recommendation. - -
Note (2) *ISO 6483:1980. - -

Weight Distributions - Approximate

Front Axle - Empty 49 % 50% -
Front Axle - Loaded 34 % 33% -
Rear Axle - Empty 51 % 50% -
Rear Axle - Loaded 66 % 67% -

Suspension

Empty Loaded Cylinder Stroke Front 9.2 in - -
Empty Loaded Cylinder Stroke Rear 5.9 in - -
Rear axle - Oscillation 8.9 ° +/- 5 degrees -
Type - Self-contained nitrogen/oil cylinders, pin-to-pin mounting, top and bottom double shear clevis attachments -
Effective Cylinder Stroke - Front - 4.12 in -
Effective Cylinder Stroke - Rear - 3.67 in -

Service Refill Capacities

Fuel Tank 140 gal (US) 1000 gal (US) -
Cooling System 33 gal (US) 180 gal (US) -
Crankcase 17 gal (US) 77 gal (US) -
Differential - Final Drives 47 gal (US) - -
Steering Tank 14.5 gal (US) - -
Steering System - Including Tank 23 gal (US) - -
Brake/Hoist Hydraulic Tank 38 gal (US) - -
Brake Hoist System 60 gal (US) 169 gal (US) -
Torque Converter - Transmission System 17 gal (US) - -
DEF Tank 6 gal (US) - -
Fuel Tank - Standard - 550 gal (US) -
Fuel Tank (Tier 4) - 55 gal (US) -
Diesel Exhaust Fluid Tank - 62 gal (US) -
Front Wheels - Each - 5.8 gal (US) -
Differentials - 161 gal (US) -
Steering System - 42 gal (US) -
Steering System - Includes Tank - 46 gal (US) -
Brake Hoist System - Includes Tank - 347 gal (US) -
Torque Converter - Transmission System - Including Sump - 55 gal (US) -

Steering

Steering Standards ISO 5010:2007 ISO 5010:2019 -
Steer Angle 40.5 ° 36.07 ° -
Turning Diameter - Front 57.7 ft - -
Turning Circle - Clearance Diameter 66.6 ft - -
Note Target gross machine operating weight is 71 214 kg (157,000 lb). - -

Tires

Standard Tire 18.00R33 (E4) - -
Note (1) Productive capabilities of the 770G truck are such that, under certain job conditions, TKPH (TMPH) capabilities of standard or optional tires could be exceeded and, therefore, limit production. Quick Change Rims optional -
Note (2) Caterpillar recommends the customer evaluates all job conditions and consults the tire manufacturer for proper tire selection. Caterpillar recommends the customer evaluate all job conditions and consult tire manufacturer for proper tire selection and TKPH (TMPH) capabilities. -
Standard Tires - 37 R57 -
Optional Tires - 40 R57 -
Optional Tire - 42/90 R57 -
Rims - 29” x 57” Rims -

ROPS

ROPS Standards Rollover Protective Structure (ROPS) for cab offered by Caterpillar meets ISO 3471:2008 ROPS criteria. - -
FOPS Standards Falling Objects Protective Structure (FOPS) meets ISO 3449:2005 Level II FOPS criteria. - -

Sound

Sound Standards (1) Hearing protection may be needed when operating with open operator station & cab for extended periods or in noisy environment. Operator sound pressure level, 77 dB(A) with direct drive and 75 dB(A) with optional clutch, tested to ISO 6396:2008. -
Sound Standards (2) Exterior sound pressure power level for standard machine measured according to tests specified in ISO 6395:2008 is 116 dB(A). - -
Sound Standards (3) Operator Equivalent Sound Pressure Level is 79 dB(A) & 74 dB(A) with EU sound suppression applied when ISO 6396:2008 is used. - -

Dimensions

Height - Top of ROPS 12.7 ft - -
Overall Body Length 26.8 ft - -
Inside Body Length 18.5 ft - -
Overall Length 28.9 ft - -
Wheel Base 13 ft - -
Rear Axle - Tail 8.5 ft - -
Ground Clearance 1.6 ft - -
Dump Clearance 1.7 ft - -
Loading Height - Empty 10.3 ft - -
Inside Body Depth - Maximum 4.6 ft - -
Overall Height - Body Raised 27.1 ft - -
Operating Width 15.7 ft - -
Centerline Front Tire Width 10.2 ft - -
Engine Guard Clearance 1.8 ft - -
Outside Body Width 12.9 ft - -
Inside Body Width 11.9 ft - -
Front Canopy Height 13.5 ft - -
Rear Axle - Clearance 1.8 ft - -
Centerline of Rear Dual Tire Width 8.3 ft - -
Overall Tire Width 12.1 ft - -

Braking System

Service Brakes - Four-Corner, Wet Disc, Oil Cooled, Hydraulically Actuated -
Front Wet Disc Brake Surface Area - 12662 in² -
Rear - Wet Disc Brake Surface Area - 20861 in² -
Standards - (Service and Secondary) ISO 3450:2011 -
Parking Brake - Four-corner, Multi-disc, Spring applied, Hydraulically Released -

Capacity - HP Body - 100% Fill Factor

Struck - 77 m3(101 yd3) -
Heaped (SAE 2:1)* - 187 -
Note (1) - Consult your local Cat dealer for body recommendations -

Cab

Air Conditioning - (HFC - 134A refrigerant) 24,500 Btu/hr -
Heater / Defroster - 33300 Btu/h -
FOPS Standards - FOPS (Falling Objects Protective Structure) meets ISO 3449:2005 Level II for Operator and ISO 13459:2012 Level II for Trainer. -
ROPS Standards (2) - ROPS (Rollover Protective Structure) meets ISO 3471:2008 for Operator and ISO 13459:2012 for Trainer. -

Dimensions (Approximate)

Height - Top of ROPS - 5550 mm -
Overall Body Length - 12945 mm -
Inside Body Length - 8730 mm -
Overall Length - 12970 mm -
Wheel Base - 57000 mm -
Rear Axle - Tail - 3856 mm -
Ground Clearance - 1304 mm -
Dump Clearance - 1585 mm -
Loading Height - Empty - 6147 mm -
Rear Sidewall Height - 1010 mm -
Inside Body Depth - Maximum - 3075 mm -
Overall Height - Body Raised - 11534 mm -
Operating Width - 7822 mm -
Centerline Front Tire Width - 5410 mm -
Engine Guard Clearance - 1290 mm -
Overall Canopy Width - 7769 mm -
Outside Body Width - 7123 mm -
Inside Body Width - 6920 mm -
Front Canopy Height - 6739 mm -
Rear Axle - Clearance - 1263 mm -
Centerline of Rear Dual Tire Width - 4695 mm -
Overall Tire Width - 7120 mm -
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