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    797F Mining Truck
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    772 (07) Off-Highway 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) - -
    Rated Gross Machine Weight 1375000 lb - -
    Chassis Weight 474472 lb 59223 lb -
    Body Weight 94799 lb 17306 lb 57779 lb
    Note (1) 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 full fuel and fluids, standard & mandatory attachments, hoist, body mounting group, rims, and tires.
    Note (4) Tier 4 Chassis Weight: 486263 lb (220565 kg) - -
    Target Gross Machine Operating Weight - 181000 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
    Note (3) - - Body weight varies depending on body selection and configuration.

    Engine
    Gross Power - SAE J1995 4000 HP 605 HP 1600 HP
    Net Power - SAE J1349 3795 HP 550 HP 1509 HP
    Engine Model Cat® C175-20 Cat® C18 Cat� 3512E
    Rated Speed 1750 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 5.7 in 6.7 in
    Stroke 8.7 in 7.2 in 8.5 in
    Displacement 6469 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 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: 1,450 hp
    Rated Engine Speed - 1700 r/min -
    Net Power - ISO 9249 - 550 HP -
    Number of Cylinders - 6 -
    Net Torque - SAE J1349 - 2221 ft-lb -
    Engine Power - ISO 14396 - 598 HP -
    Emissions Rating - - Fuel Optimized

    Body Hoists
    Type Twin, two-stage hydraulic cylinders with snubbing valve. - Twin, two-stage hydraulic cylinders with snubbing valve.
    Pump Flow - High Idle 317 gal/min 112 gal/min 192.7 gal/min
    Relief Valve Setting - Raise 3510 psi 2750 psi 2500 psi
    Body Raise Time - High Idle 25 s 8 s 15.2 s
    Body Lower Time - Float 18 s 10 s -
    Body Power Down- High Idle 18 s - 15.9 s
    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, 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
    Effective Cylinder Stroke - Front 3.9 in - 12.6 in
    Effective Cylinder Stroke - Rear 3.7 in - 6.5 in
    Rear axle - Oscillation ±3.96 degrees 8.9 ° +/- 5 degrees
    Empty Loaded Cylinder Stroke Front - 9.2 in -
    Empty Loaded Cylinder Stroke Rear - 5.8 in -

    Service Refill Capacities
    Fuel Tank 1000 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 306 gal (US) 33 gal (US) 100 gal (US)
    Crankcase 103 gal (US) 17 gal (US) 54 gal (US)
    Front Wheels - Each 16 gal (US) - 8 gal (US)
    Differentials 330 gal (US) - -
    Steering Tank 67 gal (US) 14.5 gal (US) 29 gal (US)
    Steering System - Including Tank 95 gal (US) 23 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. - -
    Differential - Final Drives - 47 gal (US) 139 gal (US)
    Torque Converter - Transmission System - 17 gal (US) -
    Brake Hoist System - 60 gal (US) -
    DEF Tank - 6 gal (US) -
    Brake/Hoist Hydraulic Tank - 38 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% 51.4 % 48%
    Rear Axle - Empty 52.80% 48.6 % 52%
    Front Axle - Loaded 33.30% 34.2 % 33%
    Rear Axle - Loaded 66.70% 65.8 % 67%
    Note 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 2.74:1 2:10:01
    Planetary Ratio 16.67:1 4.80:1 10.83:1
    Total Reduction Ratio 21.26:1 13.14:1 22.75:1
    Note Double reduction, planetary with full floating axles. - -

    Tires
    Tires 59/80 R63 - -
    Rims 44" x 63" - 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.
    Standard Tire - 21.00R33 (E4) 33.00R51
    Optional Tire - - 36.00R51
    Note (2) - - Caterpillar recommends the customer evaluate all job conditions and consult tire manufacturer for proper tire selection and TKPH (TMPH) capabilities.

    Braking System
    Service Brakes Service Brakes: Four-Corner, Wet Disc, Oil Cooled, Hydraulically Actuated - Four-Corner, Wet Disc, Oil Cooled, Hydraulically Actuated
    Front Wet Disc Brake Surface Area 20500 in² - 9487 in²
    Rear - Wet Disc Brake Surface Area 30750 in² - 13908 in²
    Standards 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 - -
    Note Anti-Lock Brake System (ABS) optional with CMD package - -

    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: 24,500 Btu/h
    Heater / Defroster 38900 Btu/h - 33300 Btu/h
    Note Ambient capabilities down to -30C (-22F) 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 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.

    Steering
    Steering Angle 40 ° - -
    Turning Diameter - Front 122.7 ft 57.7 ft -
    Steering Standards ISO 5010:2007 ISO 5010:2007 ISO 5010:2007
    Note Turning Diameter (ISO 7457:2009) - -
    Steer Angle - 40.5 ° 36 °
    Turning Circle - Clearance Diameter - 66.6 ft -
    Turning Diameter - ISO 7457:1997 (33.00R51 tires) - - 97.75 ft

    Transmission
    Forward - 1 6.6 mile/h 8 mile/h 7.5 mile/h
    Forward - 2 8.9 mile/h 10.9 mile/h 10.2 mile/h
    Forward - 3 12 mile/h 14.8 mile/h 13.8 mile/h
    Forward - 4 16.2 mile/h 19.8 mile/h 18.6 mile/h
    Forward - 5 21.8 mile/h 26.9 mile/h 25.2 mile/h
    Forward - 6 29.4 mile/h 36.2 mile/h 34 mile/h
    Forward - 7 39.5 mile/h 49.2 mile/h -
    Reverse 7.4 mile/h 10.4 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 5.7 ft -
    Overall Height - Body Raised 51.5 ft 27.1 ft -
    Loaded Ground Clearance 2.58 ft - -
    Loading Height - Empty 23 ft 11.6 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 26.8 ft -
    Inside Body Length 32.75 ft 19 ft -
    Overall Length 49.5 ft 28.9 ft -
    Wheel Base 23.58 ft 13 ft -
    Rear Axle - Tail 12.9 ft 9.5 ft -
    Dump Clearance 6.58 ft 1.5 ft -
    Centerline Front Tire Width 21.41 ft 10.4 ft -
    Overall Canopy Width 29.91 ft - -
    Outside Body Width 32 ft 12.9 ft -
    Inside Body Width 27.91 ft 11.9 ft -
    Centerline of Rear Dual Tire Width 20.41 ft 8.7 ft -
    Overall Tire Width 31.25 ft 12.9 ft -
    Height - Top of ROPS - 12.8 ft -
    Ground Clearance - 1.6 ft -
    Operating Width - 15.7 ft -
    Engine Guard Clearance - 2 ft -
    Front Canopy Height - 13.7 ft -
    Rear Axle - Clearance - 1.9 ft -

    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 -

    Brakes
    Brake Surface - Front - 216 in² -
    Brake Surface - Rear - 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. -

    Sound
    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. -

    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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