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    797F Mining Truck
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    798 AC Electric Drive Mining Truck
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    785 Mining Truck (LRC, Tier 4 Final / EU Stage V)
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    Weights - Approximate
    Nominal Rated Payload 400 ton (US) 410 ton (US) -
    Rated Gross Machine Weight 1375000 lb 1375000 lb -
    Chassis Weight 474472 lb 453826 lb -
    Body Weight 94799 lb - 57779 lb
    Note (1) Consult your tire manufacturer for maximum tire load Consult your tire manufacturer for maximum tire load. Consult your tire manufacturer for maximum tire load
    Note (2) Chassis weight with full fuel and fluids, standard & mandatory attachments, hoist, body mounting group, rims, and tires. 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 (4) Tier 4 Chassis Weight: 486263 lb (220565 kg) - -
    Body Weight Range - 38 833 - 43 275 kg (85,611 - 95,406 lb) -
    Note (3) - Body weight varies depending on how body is equipped. Body weight varies depending on body selection and configuration.
    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 4000 HP 3500 HP 1600 HP
    Net Power - SAE J1349 3795 HP 3405 HP 1509 HP
    Engine Model Cat® C175-20 Cat® C175-16 Cat� 3512E
    Rated Speed 1750 r/min 1800 r/min -
    Emissions U.S. EPA Compliant. Where applicable, the Cat C175-20 engine is compliant with U.S. EPA emission standards.Tier 4 engine option available to meet Tier 4 Final emission standards. - -
    Bore 6.9 in 6.9 in 6.7 in
    Stroke 8.7 in 8.7 in 8.5 in
    Displacement 6469 in³ 5187 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. 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 available for applicable markets. 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) High Altitude Low Maintenance Ratio Engine Configuration (4x4) option available. Additional fuel optimized selectable power ratings: 2312 kW / 3,100 hp Additional fuel optimized selectable power ratings: 1,450 hp
    Optional Gross Power - SAE J1995 - 3100 HP -
    Emissions Rating - Fuel Optimized Fuel Optimized

    Body Hoists
    Type Twin, two-stage hydraulic cylinders with snubbing valve. Twin, two-stage hydraulic cylinders with snubbing valve. Twin, two-stage hydraulic cylinders with snubbing valve.
    Pump Flow - High Idle 317 gal/min 257.3 gal/min 192.7 gal/min
    Relief Valve Setting - Raise 3510 psi 3029 psi 2500 psi
    Body Raise Time - High Idle 25 s 21 s 15.2 s
    Body Lower Time - Float 18 s 22 s -
    Body Power Down- High Idle 18 s 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. -
    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, rear strut 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 Self-contained nitrogen/oil cylinders, pin-to-pin mounting, top & bottom double shear clevis attachments
    Effective Cylinder Stroke - Front 3.9 in 10 in 12.6 in
    Effective Cylinder Stroke - Rear 3.7 in 5 in 6.5 in
    Rear axle - Oscillation ±3.96 degrees - +/- 5 degrees

    Service Refill Capacities
    Fuel Tank 1000 gal (US) 1300 gal (US) 410 gal (US)
    Fuel Tank (Tier 4) 1200 gal (US) 1200 gal (US) -
    Diesel Exhaust Fluid Tank 100 gal (US) 100 gal (US) 36 gal (US)
    Cooling System 306 gal (US) 211 gal (US) 100 gal (US)
    Crankcase 103 gal (US) 82 gal (US) 54 gal (US)
    Front Wheels - Each 16 gal (US) - 8 gal (US)
    Differentials 330 gal (US) - -
    Steering Tank 67 gal (US) - 29 gal (US)
    Steering System - Including Tank 95 gal (US) - -
    Brake/Hoist Tank 203 gal (US) - 135 gal (US)
    Brake Hoist System - Includes Tank 489 gal (US) - 160 gal (US)
    Torque Converter Sump 80 gal (US) - -
    Torque Converter/Transmission System - Including Sump 166 gal (US) - -
    Note (1) DEF Tank only available for EPA Tier 4 engine option. DEF Tank only available for U.S. EPA Tier 4 Final / EU Stage V engine option -
    Final Drive - Each - 67 gal (US) -
    Hydraulic System - Including Tank - 385 gal (US) -
    Hydraulic Tank - 296 gal (US) -
    Grease Tank - 90 lb -
    Differential - Final Drives - - 139 gal (US)
    Steering System - Includes Tank - - 45 gal (US)
    Torque Converter - Transmission System - Including Sump - - 46 gal (US)

    Weight Distributions - Approximate
    Front Axle - Empty 47.20% 47 % 48%
    Rear Axle - Empty 52.80% 53 % 52%
    Front Axle - Loaded 33.30% 33 % 33%
    Rear Axle - Loaded 66.70% 67 % 67%
    Note Weight distributions optimized with Cat body. Weight distributions optimized with Cat body. Weight distributions optimized with Cat body.

    Final Drives
    Type Double reduction, planetary with full floating axles. - Double reduction, planetary with full floating axles.
    Differential Ratio 1.276:1 - 2:10:01
    Planetary Ratio 16.67:1 - 10.83:1
    Total Reduction Ratio 21.26:1 - 22.75:1
    Note Double reduction, planetary with full floating axles. - -

    Tires
    Tires 59/80 R63 - -
    Rims 44" x 63" 44" x 63" Rims 610 mm (24") Rims (standard). 660 mm (26") Rims (optional).
    Note Quick Change Rims optional. - -
    Note (1) Caterpillar recommends the customer evaluate all job conditions and consult tire manufacturer for proper tire selection and TKPH (TMPH) capabilities. Quick Change Rims optional. Quick Change Rims optional.
    Standard Tires - 59/80 R63 -
    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 - - 33.00R51
    Optional Tire - - 36.00R51

    Braking System
    Service Brakes Service Brakes: Four-Corner, Wet Disc, Oil Cooled, Hydraulically Actuated Four-Corner, Wet Disc, Oil Cooled, Hydraulically Actuated Four-Corner, Wet Disc, Oil Cooled, Hydraulically Actuated
    Front Wet Disc Brake Surface Area 20500 in² 22642 in² 9487 in²
    Rear - Wet Disc Brake Surface Area 30750 in² 32730 in² 13908 in²
    Standards Service and Secondary: ISO 3450:2011 Service and Secondary: ISO 3450:2011 Service and Secondary: ISO 3450:2011
    Parking Brake Four-corner, Multi-disc, Spring Applied, Hydraulically Released - Four corner, multi disc, spring applied, hydraulically released
    Load Brake Rear service brakes Rear service brakes -
    Note Anti-Lock Brake System (ABS) optional with CMD package Anti-Lock Brake System (ABS) optional with CMD package -
    Electric Retarding - Radial Grid Design -
    Dynamic Retarding Power - Continuous - 5480 HP -
    Parking Brakes - Four-corner, Multi-disc, Spring Applied, Hydraulically Released -

    Capacity - HP Body - 100% Fill Factor
    Struck 225 yd³ / 172 m³ - -
    Heaped (SAE 2:1)* 330 yd³ / 252 m³ - -
    Note (1) Consult your local Cat dealer for body recommendations. - -

    Cab
    Air Conditioning HFC - 134A refrigerant: 24,300 Btu/h HFC - 134A refrigerant: 21,600 Btu/h HFC - 134A refrigerant: 24,500 Btu/h
    Heater / Defroster 38900 Btu/h 24600 Btu/h 33300 Btu/h
    Note Ambient capabilities down to -30C (-22F) for heater/defroster and up to 50C (122F) for air conditioning. 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) The operator sound pressure level, 76 dB(A), complies with ISO 6394:2008 and ISO 6396:2008. 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.
    ROPS Standards (2) ROPS (Rollover Protective Structure) meets ISO 3471:1994 criteria. - -
    FOPS Standards FOPS (Falling Objects Protective Structure) meets ISO 3449:1992 Level II criteria. 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.

    Steering
    Steering Angle 40 ° - -
    Turning Diameter - Front 122.7 ft 106.3 ft -
    Steering Standards ISO 5010:2007 Steering Standards: ISO 5010:2007 ISO 5010:2007
    Note Turning Diameter (ISO 7457:2009) Turning Diameter (ISO 7457:1997) -
    Steer Angle - 39 ° 36 °
    Turning Diameter - ISO 7457:1997 (33.00R51 tires) - - 97.75 ft

    Transmission
    Forward - 1 6.6 mile/h - 7.5 mile/h
    Forward - 2 8.9 mile/h - 10.2 mile/h
    Forward - 3 12 mile/h - 13.8 mile/h
    Forward - 4 16.2 mile/h - 18.6 mile/h
    Forward - 5 21.8 mile/h - 25.2 mile/h
    Forward - 6 29.4 mile/h - 34 mile/h
    Forward - 7 39.5 mile/h - -
    Reverse 7.4 mile/h - 6.8 mile/h
    Top Speed - Loaded 39.5 mile/h - 34 mile/h
    Note - - Maximum travel speeds with standard 33.00-R51 tires.

    Dimensions
    Rear Axle - Clearance - Loaded 3.08 ft - -
    Inside Body Depth - Maximum 11 ft - -
    Overall Height - Body Raised 51.5 ft - -
    Loaded Ground Clearance 2.58 ft - -
    Loading Height - Empty 23 ft - -
    Engine Guard Clearance - Loaded 3.33 ft - -
    Height - Top of ROPS - Empty 21.4 ft - -
    Front Canopy Height - Empty 25.33 ft - -
    Overall Body Length 48.6 ft - -
    Inside Body Length 32.75 ft - -
    Overall Length 49.5 ft - -
    Wheel Base 23.58 ft - -
    Rear Axle - Tail 12.9 ft - -
    Dump Clearance 6.58 ft - -
    Centerline Front Tire Width 21.41 ft - -
    Overall Canopy Width 29.91 ft - -
    Outside Body Width 32 ft - -
    Inside Body Width 27.91 ft - -
    Centerline of Rear Dual Tire Width 20.41 ft - -
    Overall Tire Width 31.25 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 -

    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. -

    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 -

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

    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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