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798 AC Electric Drive Mining Truck
772 (07) Off-Highway Truck
772G Off-Highway Truck
785 Mining Truck (LRC, Tier 4 Final / EU Stage V)

Weights - Approximate

Nominal Rated Payload 410 ton (US) - - -
Rated Gross Machine Weight 1375000 lb - - -
Chassis Weight 453826 lb 59223 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 & mandatory attachments, hoist, body mounting group, rims, and tires.
Note (3) Body weight varies depending on how body is equipped. - - Body weight varies depending on body selection and configuration.
Target Gross Machine Operating Weight - 181000 lb - -
Body Weight - 17306 lb - 57779 lb
Target Gross Machine Weight - 181000 lb - -
Nominal Rated Payload (33.00R51 Tires) - - - 153 ton (US)
Rated Gross Machine Weight (33.00R51 tires) - - - 550000 lb
Nominal Rated Payload (36.00R51 Tires) - - - 157 ton (US)
Rated Gross Machine Weight (36.00R51 tires) - - - 564000 lb
Chassis Weight (33.00R51 Tires) - - - 186799 lb
Chassis Weight (36.00R51 Tires) - - - 193192 lb

Engine

Gross Power - SAE J1995 3500 HP 605 HP 605 HP 1600 HP
Engine Model Cat® C175-16 Cat® C18 Cat® C18 Cat� 3512E
Net Power - SAE J1349 3405 HP 550 HP - 1509 HP
Optional Gross Power - SAE J1995 3100 HP - - -
Rated Speed 1800 r/min - - -
Emissions Rating Fuel Optimized - - Fuel Optimized
Bore 6.9 in 5.7 in 5.7 in 6.7 in
Stroke 8.7 in 7.2 in 7.2 in 8.5 in
Displacement 5187 in³ 1105 in³ 1105 in³ 3573 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. - - 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. - - U.S. EPA Tier 4 Final / EU Stage V available for applicable markets.
Note (3) Additional fuel optimized selectable power ratings: 2312 kW / 3,100 hp - - Additional fuel optimized selectable power ratings: 1,450 hp
Rated Engine Speed - 1700 r/min 1700 r/min -
Net Power - ISO 9249 - 550 HP - -
Number of Cylinders - 6 6 -
Net Torque - SAE J1349 - 2221 ft-lb - -
Engine Power - ISO 14396 - 598 HP - -
Rated Net Power - SAE J1349 - - 550 HP -
Note - - Net Power advertised is the power available at the flywheel when the engine is equipped with air intake system, exhaust system, and alternator. -

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) 140 gal (US) - 410 gal (US)
Fuel Tank (Tier 4) 1200 gal (US) - - -
Diesel Exhaust Fluid Tank 100 gal (US) - - 36 gal (US)
Cooling System 211 gal (US) 33 gal (US) 33 gal (US) 100 gal (US)
Crankcase 82 gal (US) 17 gal (US) 17 gal (US) 54 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 - 47 gal (US) 47 gal (US) 139 gal (US)
Steering Tank - 14.5 gal (US) - 29 gal (US)
Steering System - Including Tank - 23 gal (US) 60 gal (US) -
Torque Converter - Transmission System - 17 gal (US) 17 gal (US) -
Brake Hoist System - 60 gal (US) 60 gal (US) -
DEF Tank - 6 gal (US) - -
Brake/Hoist Hydraulic Tank - 38 gal (US) 38 gal (US) -
Fuel Tank Capacity - - 140 gal (US) -
Front Wheels - Each - - - 8 gal (US)
Steering System - Includes Tank - - - 45 gal (US)
Brake/Hoist Tank - - - 135 gal (US)
Brake Hoist System - Includes Tank - - - 160 gal (US)
Torque Converter - Transmission System - Including Sump - - - 46 gal (US)

Steering

Steer Angle 39 ° 40.5 ° 31 ° 36 °
Turning Diameter - Front 106.3 ft 57.7 ft - -
Steering Standards Steering Standards: ISO 5010:2007 ISO 5010:2007 ISO 5010:2007 ISO 5010:2007
Note Turning Diameter (ISO 7457:1997) - - -
Turning Circle - Clearance Diameter - 66.6 ft 66.6 ft -
Turning Diameter - - 57.7 ft -
Turning Diameter - ISO 7457:1997 (33.00R51 tires) - - - 97.75 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 - - 9487 in²
Rear - Wet Disc Brake Surface Area 32730 in² - - 13908 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 % 51.4 % - 48%
Rear Axle - Empty 53 % 48.6 % - 52%
Front Axle - Loaded 33 % 34.2 % - 33%
Rear Axle - Loaded 67 % 65.8 % - 67%
Note Weight distributions optimized with Cat body. - - 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 112 gal/min - 192.7 gal/min
Relief Valve Setting - Raise 3029 psi 2750 psi - 2500 psi
Body Raise Time - High Idle 21 s 8 s - 15.2 s
Body Lower Time - Float 22 s 10 s - -
Body Power Down- High Idle 17.5 s - - 15.9 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 - 10 s - -
Body Lower Time - Float High Idle - - - 15.9 s
Body Lower Time - Float Low Idle - - - 16.2 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 & bottom double shear clevis attachments
Effective Cylinder Stroke - Front 10 in - - 12.6 in
Effective Cylinder Stroke - Rear 5 in - - 6.5 in
Rear axle - Oscillation - 8.9 ° - +/- 5 degrees
Empty Loaded Cylinder Stroke Front - 9.2 in - -
Empty Loaded Cylinder Stroke Rear - 5.8 in - -

Cab

Air Conditioning HFC - 134A refrigerant: 21,600 Btu/h - - HFC - 134A refrigerant: 24,500 Btu/h
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. - - The operator sound pressure level, 77 dB(A) with direct drive and 75 dB9A) with optional clutch, tested to ISO 6396:2008.
ROPS Standards (1) ROPS (Rollover Protective Structure) meets ISO 3471:2008 for Operator and ISO 13459:2012 for Trainer. - - 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. - - 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 - - -

Tires

Rims 44" x 63" Rims - - 610 mm (24") Rims (standard). 660 mm (26") Rims (optional).
Standard Tires 59/80 R63 - - -
Note (1) Quick Change Rims optional. - - 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 tire manufacturer for proper tire selection and TKPH (TMPH) capabilities.
Standard Tire - 21.00R33 (E4) - 33.00R51
Optional Tire - - - 36.00R51

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 - - -

Sound

Sound Standards The operator sound pressure level, 75 dB(A), measured according to ISO 6394:2008 and ISO 6396:2008. - - -
Sound Standards (3) - Operator Equivalent Sound Pressure Level (Leq) is 78 dB(A) when ISO 6396:2008 is used to measure the value for an enclosed cab. - -
Sound Standards (2) - Exterior sound pressure power level for standard machine measured according to tests specified in ISO 6395:2008 is 118 dB(A). - -
Sound Standards (1) - Hearing protection may be needed when operating with open operator station & cab for extended periods or in noisy environment. - -

Operating Specifications

Nominal Payload Class (100%) - 51.6 ton (US) - -
Top Speed - Loaded - 49.2 mile/h - -
Maximum Payload Class (110%) - 56.7 ton (US) - -
Body Capacity - SAE 2:1 - 40.8 yd³ - -
Target Payload Capacity - 51.6 ton (US) - -
Not to Exceed Payload (120%) - 61.9 ton (US) - -
Body Capacity (SAE 2:1)** - 40.8 yd³ - -
Nominal Water Tank Capacity - - 11000 gal (US) -

Transmission

Forward - 1 - 8 mile/h 8 mile/h 7.5 mile/h
Forward - 2 - 10.9 mile/h 10.9 mile/h 10.2 mile/h
Forward - 3 - 14.8 mile/h 14.8 mile/h 13.8 mile/h
Forward - 4 - 19.8 mile/h 19.8 mile/h 18.6 mile/h
Forward - 5 - 26.9 mile/h 26.9 mile/h 25.2 mile/h
Forward - 6 - 36.2 mile/h 36.2 mile/h 34 mile/h
Forward - 7 - 49.2 mile/h 49.2 mile/h -
Reverse - 10.4 mile/h 10.4 mile/h 6.8 mile/h
Note - - Maximum travel speeds with standard 21.00R33 (E4) tires. Maximum travel speeds with standard 33.00-R51 tires.
Top Speed - Loaded - - - 34 mile/h

Final Drives

Differential Ratio - 2.74:1 - 2:10:01
Planetary Ratio - 4.80:1 - 10.83:1
Total Reduction Ratio - 13.14:1 - 22.75:1
Type - - - Double reduction, planetary with full floating axles.

Brakes

Brake Surface - Front - 216 in² 216 in² -
Brake Surface - Rear - 7794 in² 7794 in² -
Brake Standards - ISO 3450:1996 - -

Capacity - Dual Slope - 100% Fill Factor

Heaped 2:1 (SAE) - 40.8 yd³ - -
Struck - 31.3 yd³ - -

Capacity - Flat Floor - 100% Fill Factor

Struck - 31.3 yd³ - -
Heaped 2:1 (SAE) - 40.9 yd³ - -

ROPS

FOPS Standards - FOPS (Falling Objects Protective Structure) meets ISO 3449:2005 Level II FOPS criteria. - -
ROPS Standards - ROPS (Rollover Protective Structure) for cab offered by Caterpillar meets ISO 3471:2008 ROPS criteria. - -
Tractor ROPS - - 77430 lb -

Dimensions

Height - Top of ROPS - 12.8 ft - -
Inside Body Depth - Maximum - 5.7 ft - -
Overall Body Length - 26.8 ft - -
Inside Body Length - 19 ft - -
Overall Length - 28.9 ft - -
Wheel Base - 13 ft - -
Rear Axle - Tail - 9.5 ft - -
Ground Clearance - 1.6 ft - -
Dump Clearance - 1.5 ft - -
Loading Height - Empty - 11.6 ft - -
Overall Height - Body Raised - 27.1 ft - -
Operating Width - 15.7 ft - -
Centerline Front Tire Width - 10.4 ft - -
Engine Guard Clearance - 2 ft - -
Outside Body Width - 12.9 ft - -
Inside Body Width - 11.9 ft - -
Front Canopy Height - 13.7 ft - -
Rear Axle - Clearance - 1.9 ft - -
Centerline of Rear Dual Tire Width - 8.7 ft - -
Overall Tire Width - 12.9 ft - -

Weights

LRC Bare Chassis Weight without Hoist - - 58414 lb -
LRC Bare Chassis Weight with Hoist - - 59223 lb -
LRC Gross Vehicle Weight (Target) with Hoist - - 180999 lb -
LRC Gross Vehicle Weight (Target) without Hoist - - 180999 lb -
HRC Bare Chassis Weight without Hoist - - 59567 lb -
HRC Bare Chassis Weight with Hoist - - 60376 lb -
HRC Gross Vehicle Weight (Target) with Hoist - - 180999 lb -
HRC Gross Vehicle Weight (Target) without Hoist - - 180999 lb -
Note - - LRC model is offered for lesser regulated countries. HRC model is offered for highly regulated countries. U.S. EPA Tier 4 Final / EU Stage V available for applicable markets. -

Capacity - MSD II - 100% Fill Factor

Struck - - - 72 m^3 / 94 yd^3
Heaped (SAE 2:1) - - - 99 m^3 / 129 yd^3
Note - - - Consult your local Cat dealer for body recommendations.

Dimensions (All dimensions are approximate. MSD II Body, 33R51 tires, unloaded machine.)

Height - Top of ROPS - - - 17.09 ft
Overall Body Length - - - 39.32 ft
Inside Body Length - - - 27.29 ft
Overall Length - - - 39.23 ft
Wheel Base - - - 17 ft
Rear Axle - Tail - - - 12.56 ft
Ground Clearance - - - 3.29 ft
Dump Clearance - - - 3.7 ft
Loading Height - Empty - - - 17.39 ft
Inside Body Depth - Maximum - - - 9.15 ft
Overall Height - Body Raised - - - 39.48 ft
Operating Width - - - 24.72 ft
Centerline Front Tire Width - - - 15.91 ft
Engine Guard Clearance - - - 3.41 ft
Overall Canopy Width - - - 24.81 ft
Outside Body Width - - - 22 ft
Inside Body Width - - - 19.72 ft
Front Canopy Height - - - 19.8 ft
Rear Axle - Clearance - - - 3.25 ft
Centerline of Rear Dual Tire Width - - - 14.06 ft
Overall Tire Width - - - 20.59 ft
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