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770 Off-Highway Truck
798 AC Electric Drive Mining Truck

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® C175-16 -
Rated Engine Speed 1700 r/min - -
Gross Power - SAE J1995 515 HP 3500 HP -
Net Power - SAE J1349 477 HP 3405 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 6.9 in -
Stroke 6.7 in 8.7 in -
Displacement 927.6 in³ 5187 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). U.S. EPA Tier 4 Final / EU Stage V available for applicable markets. -
Note (3) No engine derating required up to 3000 m (9,843 ft) altitude. Additional fuel optimized selectable power ratings: 2312 kW / 3,100 hp -
Note (4) Meets Japan Small Volume Exemption. - -
Emissions Meets U.S. EPA Tier 4 and EU Stage V emission standards. - -
Optional Gross Power - SAE J1995 - 3100 HP -
Rated Speed - 1800 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 453826 lb -
Body Weight 17306 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 100% fuel, hoist, body mounting group, rims, and tires. -
Nominal Rated Payload - 410 ton (US) -
Rated Gross Machine Weight - 1375000 lb -
Body Weight Range - 38 833 - 43 275 kg (85,611 - 95,406 lb) -
Note (3) - Body weight varies depending on how body is equipped. -

Transmission

Forward - 1 7.4 mile/h - -
Forward - 2 10.1 mile/h - -
Forward - 3 13.8 mile/h - -
Forward - 4 18.5 mile/h - -
Forward - 5 25.1 mile/h - -
Forward - 6 33.8 mile/h - -
Forward - 7 45.8 mile/h - -
Reverse 8.8 mile/h - -
Note Maximum travel speeds with standard 18.00R33 (E4) tires. - -

Final Drives

Differential Ratio 1.92:1 - -
Planetary Ratio 4.80:1 - -
Total Reduction Ratio 9.26:1 - -

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 257.3 gal/min -
Relief Valve Setting - Raise 2750 psi 3029 psi -
Relief Valve Setting - Lower 500 psi - -
Body Raise Time - High Idle 7.5 s 21 s -
Body Lower Time - Float 10 s 22 s -
Body Power Down - High Idle 10 s - -
Type - Twin, two-stage hydraulic cylinders with snubbing valve. -
Body Power Down- High Idle - 17.5 s -
Note (1) - Twin, two-stage hydraulic cylinders mounted outside main frame; double-acting cylinders in both stages. -
Note (2) - Power raise in both stages; power down capability in both stages. -
Note (3) - Automatic body-lower modulation reduces impact on frame. -

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 % 47 % -
Front Axle - Loaded 34 % 33 % -
Rear Axle - Empty 51 % 53 % -
Rear Axle - Loaded 66 % 67 % -
Note - Weight distributions optimized with Cat body. -

Suspension

Empty Loaded Cylinder Stroke Front 9.2 in - -
Empty Loaded Cylinder Stroke Rear 5.9 in - -
Rear axle - Oscillation 8.9 ° - -
Type - Self-contained nitrogen/oil cylinders, pin-to-pin mounting, top & bottom double shear clevis attachments -
Effective Cylinder Stroke - Front - 10 in -
Effective Cylinder Stroke - Rear - 5 in -

Service Refill Capacities

Fuel Tank 140 gal (US) 1300 gal (US) -
Cooling System 33 gal (US) 211 gal (US) -
Crankcase 17 gal (US) 82 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) - -
Torque Converter - Transmission System 17 gal (US) - -
DEF Tank 6 gal (US) - -
Fuel Tank (Tier 4) - 1200 gal (US) -
Diesel Exhaust Fluid Tank - 100 gal (US) -
Final Drive - Each - 67 gal (US) -
Hydraulic System - Including Tank - 385 gal (US) -
Hydraulic Tank - 296 gal (US) -
Grease Tank - 90 lb -
Note (1) - DEF Tank only available for U.S. EPA Tier 4 Final / EU Stage V engine option -

Steering

Steering Standards ISO 5010:2007 Steering Standards: ISO 5010:2007 -
Steer Angle 40.5 ° 39 ° -
Turning Diameter - Front 57.7 ft 106.3 ft -
Turning Circle - Clearance Diameter 66.6 ft - -
Note Target gross machine operating weight is 71 214 kg (157,000 lb). Turning Diameter (ISO 7457:1997) -

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. -
Rims - 44" x 63" Rims -
Standard Tires - 59/80 R63 -

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. - -
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. - -
Sound Standards - The operator sound pressure level, 75 dB(A), measured according to ISO 6394:2008 and ISO 6396:2008. -

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 - -

Service Refill Capacities - High Altitude Only

Fuel Tank - 2000 gal (US) -
Cooling System - 273 gal (US) -
Crankcase - 124 gal (US) -
Hydraulic Tank - 273 gal (US) -
Hydraulic System (includes tank) - 342 gal (US) -

AC Drive System

Total Reduction Ratio - 35:01:00 -
Top Speed - Loaded - 40 mile/h -
Generator/Alternator - Brushless, engine mounted, dual bearing -
Controls - IGBT Inverter Technology, air cooled, pressurized cabinet with filtration -
Wheel Motor - Cat high-torque AC induction, rear axle mounted -
Cooling System - Cat variable speed, hydraulically driven cooling system -

Braking System

Service Brakes - Four-Corner, Wet Disc, Oil Cooled, Hydraulically Actuated -
Front Wet Disc Brake Surface Area - 22642 in² -
Rear - Wet Disc Brake Surface Area - 32730 in² -
Standards - Service and Secondary: ISO 3450:2011 -
Electric Retarding - Radial Grid Design -
Dynamic Retarding Power - Continuous - 5480 HP -
Parking Brakes - Four-corner, Multi-disc, Spring Applied, Hydraulically Released -
Load Brake - Rear service brakes -
Note - Anti-Lock Brake System (ABS) optional with CMD package -

Capacity - HE Body - 100% fill factor

Struck - 129-200 m³ (168-261 yd³) -
Heaped (SAE 2:1) - 218-276 m³ (285-361 yd³) -
Note - Contact your local Cat dealer for body recommendations. -

Cab

Air Conditioning - HFC - 134A refrigerant: 21,600 Btu/h -
Heater / Defroster - 24600 Btu/h -
Note - Ambient capabilities down to -15C (5F) for heater/defroster and up to 50C (122F) for air conditioning. -
ROPS Standards (1) - ROPS (Rollover Protective Structure) meets ISO 3471:2008 for Operator and ISO 13459:2012 for Trainer. -
FOPS Standards - FOPS (Falling Objects Protective Structure) meets ISO 3449:2005 Level II for Operator and ISO 13459:2012 Level II for Trainer. -

Engine - High Altitude Only

Engine Model - Cat® C175-20 -
Gross Power SAE J1995:2014 - 4150 HP -
Net Power - SAE J1349:2011 - 4000 HP -
Rated Speed - 1750 r/min -
Emissions Rating - Fuel Optimized -
Bore - 6.9 in -
Stroke - 8.7 in -
Displacement - 6469 in³ -
Note 1 - 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 - Additional fuel optimized selectable power rating: 2983 kW / 4,000 hp -

Dimensions (Approximate)

Height - Top of ROPS - 22.1 ft -
Overall Length - 51.44 ft -
Wheel Base - 21.9 ft -
Rear Axle - Tail - 16.07 ft -
Dump Clearance - Empty - 5.72 ft -
Loading Height - Empty - 25.54 ft -
Overall Height - Body Raised - 48.85 ft -
Centerline Front Tire Width - 23.06 ft -
Front Axle Clearance - Loaded - 2.81 ft -
Overall Canopy Width (with rock deflectors) - 33.15 ft -
Outside Body/Canopy Width (without rock deflectors) - 31.62 ft -
Inside Body Width - 29.44 ft -
Front Canopy Height - Empty - 26.01 ft -
Rear Axle Clearance - Loaded - 2.8 ft -
Centerline of Rear Dual Tire Width - 19.5 ft -
Overall Tire Width - Empty - 30.27 ft -
Overall Length (High Altitude only) - 51.87 ft -
Note - Dimensions listed includes canopy deflectors -
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