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    798 AC Electric Drive Mining Truck
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    775 Off-Highway Truck
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    789 Next Generation
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    Weights - Approximate
    Nominal Rated Payload 410 ton (US) - 213 ton (US)
    Rated Gross Machine Weight 1375000 lb - 715000 lb
    Chassis Weight 453826 lb - -
    Body Weight Range 38 833 - 43 275 kg (85,611 - 95,406 lb) - -
    Note (1) Consult your tire manufacturer for maximum tire load. - Consult your tire manufacturer for maximum tire load
    Note (2) Chassis weight with 100% fuel, hoist, body mounting group, rims, and tires. - Chassis weight with full fuel and fluids, standard and mandatory attachments, hoist, body mounting group, rims, and tires.
    Note (3) Body weight varies depending on how body is equipped. - -
    Maximum Gross Vehicle Weight - 246503 lb -
    Body Weight - - 60406 lb

    Engine
    Gross Power - SAE J1995 3500 HP 825 HP -
    Engine Model Cat® C175-16 Cat® C27 Cat® 3516E
    Net Power - SAE J1349 3405 HP 768 HP -
    Optional Gross Power - SAE J1995 3100 HP - -
    Rated Speed 1800 r/min - 1650 r/min
    Emissions Rating Fuel Optimized - Fuel Optimized
    Bore 6.9 in 5.4 in 6.7 in
    Stroke 8.7 in 6 in 8.5 in
    Displacement 5187 in³ 1648 in³ 4766 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. Power rating applies at 2,000 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) U.S. EPA Tier 4 Final / EU Stage V available for applicable markets. 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) Additional fuel optimized selectable power ratings: 2312 kW / 3,100 hp No engine derating required up to 3810 m (12,500 ft) for Tier 2 Equivalent. U.S. EPA Tier 4 Final / EU Stage V optional engine available for applicable markets.
    Rated Engine Speed - 1800 r/min -
    Net Power - 80/1269/EEC - 775 HP -
    Net Power - ISO 9249 - 775 HP -
    Engine Power - ISO 14396 - 812 HP -
    Net Torque - 3148 ft-lb -
    Peak Torque - Speed - 1200 r/min -
    Emissions - Meets EU Stage V emission standards. -
    Gross Power - SAE J1995:2014 - - 2100 HP
    Net Power - SAE J1349:2011 - - 1975 HP

    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) - -

    Service Refill Capacities
    Fuel Tank 1300 gal (US) 210 gal (US) 1000 gal (US)
    Fuel Tank (Tier 4) 1200 gal (US) - 55 gal (US)
    Diesel Exhaust Fluid Tank 100 gal (US) - 62 gal (US)
    Cooling System 211 gal (US) 45 gal (US) 180 gal (US)
    Crankcase 82 gal (US) 24 gal (US) 77 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 - -
    Differential - Final Drives - 38 gal (US) -
    Steering Tank - 9.5 gal (US) -
    Steering System - Including Tank - 14 gal (US) -
    Brake Hoist System - 85 gal (US) 169 gal (US)
    Torque Converter - Transmission System - LRC - 16 gal (US) -
    Brake/Hoist Hydraulic Tank - 46.5 gal (US) -
    Torque Converter - Transmission System - HRC - 18 gal (US) -
    Fuel Tank - Standard - - 550 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
    Steer Angle 39 ° 31 ° 36.07 °
    Turning Diameter - Front 106.3 ft 77.1 ft -
    Steering Standards Steering Standards: ISO 5010:2007 ISO 5010:2007 ISO 5010:2007
    Note Turning Diameter (ISO 7457:1997) - -
    Turning Circle - Clearance Diameter - 85.6 ft -

    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 - Four-Corner, Wet Disc, Oil Cooled, Hydraulically Actuated
    Front Wet Disc Brake Surface Area 22642 in² - 12662 in²
    Rear - Wet Disc Brake Surface Area 32730 in² - 20861 in²
    Standards Service and Secondary: ISO 3450:2011 - (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 - -
    Parking Brake - - Four-corner, Multi-disc, Spring applied, Hydraulically Released

    Weight Distributions - Approximate
    Front Axle - Empty 47 % 50 % 50%
    Rear Axle - Empty 53 % 50 % 50%
    Front Axle - Loaded 33 % 34 % 33%
    Rear Axle - Loaded 67 % 66 % 67%
    Note Weight distributions optimized with Cat body. - -

    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. - -

    Body Hoists
    Type Twin, two-stage hydraulic cylinders with snubbing valve. - Twin, two-stage hydraulic cylinders with snubbing valve.
    Pump Flow - High Idle 257.3 gal/min 118 gal/min 106.5 gal/min
    Relief Valve Setting - Raise 3029 psi 2502 psi 2749 psi
    Body Raise Time - High Idle 21 s 10 s 14 s
    Body Lower Time - Float 22 s 14 s 16 s
    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. - -
    Relief Valve Setting - Lower - 500 psi -
    Body Power Down - High Idle - 14 s -

    Suspension
    Type Self-contained nitrogen/oil cylinders, pin-to-pin mounting, top & bottom double shear clevis attachments - Self-contained nitrogen/oil cylinders, pin-to-pin mounting, top and bottom double shear clevis attachments
    Effective Cylinder Stroke - Front 10 in - 4.12 in
    Effective Cylinder Stroke - Rear 5 in - 3.67 in
    Empty Loaded Cylinder Stroke Front - 9.2 in -
    Rear axle - Oscillation - 8.1° +/- 5 degrees
    Empty Loaded Cylinder Stroke Rear - 5.8 in -

    Cab
    Air Conditioning HFC - 134A refrigerant: 21,600 Btu/h - (HFC - 134A refrigerant) 24,500 Btu/hr
    Heater / Defroster 24600 Btu/h - 33300 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. - The operator sound pressure level, 77 dB(A) with direct drive and 75 dB(A) with optional clutch, tested to ISO 6396:2008.
    FOPS Standards FOPS (Falling Objects Protective Structure) meets ISO 3449:2005 Level II for Operator and ISO 13459:2012 Level II for Trainer. - 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.

    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 - -

    Tires
    Rims 44" x 63" Rims - 29” x 57” Rims
    Standard Tires 59/80 R63 - 37 R57
    Note (1) Quick Change Rims optional. Productive capabilities of the 775G 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 evaluate all job conditions and consult tire manufacturer for proper tire selection and TKPH (TMPH) capabilities. Caterpillar recommends the customer evaluate all job conditions and consult 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 Tire - 24.00R35 (E4) -
    Optional Tires - - 40 R57
    Optional Tire - - 42/90 R57

    Dimensions (Approximate)
    Height - Top of ROPS 22.1 ft - 5550 mm
    Overall Length 51.44 ft - 12970 mm
    Wheel Base 21.9 ft - 57000 mm
    Rear Axle - Tail 16.07 ft - 3856 mm
    Dump Clearance - Empty 5.72 ft - -
    Loading Height - Empty 25.54 ft - 6147 mm
    Overall Height - Body Raised 48.85 ft - 11534 mm
    Centerline Front Tire Width 23.06 ft - 5410 mm
    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 - 6920 mm
    Front Canopy Height - Empty 26.01 ft - -
    Rear Axle Clearance - Loaded 2.8 ft - -
    Centerline of Rear Dual Tire Width 19.5 ft - 4695 mm
    Overall Tire Width - Empty 30.27 ft - -
    Overall Length (High Altitude only) 51.87 ft - -
    Note Dimensions listed includes canopy deflectors - -
    Overall Body Length - - 12945 mm
    Inside Body Length - - 8730 mm
    Ground Clearance - - 1304 mm
    Dump Clearance - - 1585 mm
    Rear Sidewall Height - - 1010 mm
    Inside Body Depth - Maximum - - 3075 mm
    Operating Width - - 7822 mm
    Engine Guard Clearance - - 1290 mm
    Overall Canopy Width - - 7769 mm
    Outside Body Width - - 7123 mm
    Front Canopy Height - - 6739 mm
    Rear Axle - Clearance - - 1263 mm
    Overall Tire Width - - 7120 mm

    Sound
    Sound Standards The operator sound pressure level, 75 dB(A), measured according to ISO 6394:2008 and ISO 6396:2008. - -
    Sound Standards (1) - The operator Equivalent Sound Pressure Level (Leq) is 76 dB(A) when SAE J1166 FEB2008 is used to measure the value for an enclosed cab. This is a work cycle sound exposure level. The cab was properly installed and maintained. The test was conducted with t -
    Sound Standards (2) - The exterior sound pressure level for the standard machine measured at a distance of 15 m (49 ft) according to the test procedures specified in SAE J88:2008, mid‑gear moving operation is 86 dB(A). -
    Sound Standards (3) - Hearing protection may be needed when operating with an open operator station and cab (when not properly maintained or doors/windows open) for extended periods or in a noisy environment. -

    Operating Specifications
    Nominal Payload Class (100%) - 70.5 ton (US) -
    Top Speed - Loaded - 41.6 mile/h -
    Maximum Working Payload (110%) - 77.5 ton (US) -
    Target Payload (100%) - 70.5 ton (US) -
    Maximum Allowable Payload (120%)* - 84.6 ton (US) -
    Note (2) - * Refer to the Caterpillar 10/10/20 Payload Policy for maximum gross machine weight limitations. -
    Note (1) - Capacity with Dual Slope body – no liner. -
    Body Capacity - SAE 2:1 - 55.23 yd³ -

    Capacity - Dual Slope - 100% Fill Factor
    Struck - 42.7 yd³ -
    Heaped (SAE 2:1)* - 55.5 yd³ -
    Note (1) - Contact your local Cat dealer for body recommendation. -
    Note (2) - *ISO 6483:1980 -

    Capacity - Flat Floor - 100% Fill Factor
    Struck - 42.2 yd³ -
    Heaped (SAE 2:1)* - 55.2 yd³ -
    Note (1) - Contact your local Cat dealer for body recommendation. -
    Note (2) - *ISO 6483:1980 -

    Transmission
    Forward - 1 - 6.6 mile/h 7.8 mile/h
    Forward - 2 - 9.3 mile/h 10.6 mile/h
    Forward - 3 - 12.6 mile/h 14.4 mile/h
    Forward - 4 - 16.8 mile/h 19.4 mile/h
    Forward - 5 - 22.8 mile/h 26.3 mile/h
    Forward - 6 - 30.7 mile/h 35.5 mile/h
    Forward - 7 - 41.6 mile/h -
    Reverse - 8.7 mile/h 7.3 mile/h
    Note - Maximum travel speeds with standard 24.00R35 (E4) tires. -
    Top Speed - Loaded - - 35.5 mile/h

    Final Drives
    Differential Ratio - 3.64:1 2.35:1
    Planetary Ratio - 4.80:1 10.83:1
    Total Reduction Ratio - 17.49:1 25.46:1
    Type - - Double reduction, planetary with full floating axles

    Brakes
    Brake Surface - Front - 257 in² -
    Brake Surface - Rear - 9497 in² -
    Brake Standards - ISO 3450:2011 -

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

    Sustainability
    Recyclability - 98% -

    Capacity - HP Body - 100% Fill Factor
    Struck - - 77 m3(101 yd3)
    Heaped (SAE 2:1)* - - 143 m3(187 yd2)
    Note (1) - - Consult your local Cat dealer for body recommendations
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