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797F Mining Truck
772 (07) Off-Highway Truck
770 Off-Highway Truck

Weights - Approximate

Nominal Rated Payload 400 ton (US) - -
Rated Gross Machine Weight 1375000 lb - -
Chassis Weight 474472 lb 59223 lb 55948 lb
Body Weight 94799 lb 17306 lb 17306 lb
Note (1) Consult your tire manufacturer for maximum tire load - Chassis weight with 100% fuel, hoist, body mounting group, rims, and tires.
Note (2) Chassis weight with full fuel and fluids, standard & mandatory attachments, hoist, body mounting group, rims, and tires. - Body weight is the standard Dual Slope body with no liner and will vary depending on configuration.
Note (4) Tier 4 Chassis Weight: 486263 lb (220565 kg) - -
Target Gross Machine Operating Weight - 181000 lb 157000 lb
Target Gross Machine Weight - 181000 lb 157000 lb

Engine

Gross Power - SAE J1995 4000 HP 605 HP 515 HP
Net Power - SAE J1349 3795 HP 550 HP 477 HP
Engine Model Cat® C175-20 Cat® C18 Cat® C15
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. - Meets U.S. EPA Tier 4 and EU Stage V emission standards.
Bore 6.9 in 5.7 in 5.4 in
Stroke 8.7 in 7.2 in 6.7 in
Displacement 6469 in³ 1105 in³ 927.6 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 1,700 rpm when tested under the specified condition for the specified standard.
Note (2) U.S. EPA Tier 4 Final 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).
Note (3) High Altitude Low Maintenance Ratio Engine Configuration (4x4) option available. - No engine derating required up to 3000 m (9,843 ft) altitude.
Rated Engine Speed - 1700 r/min 1700 r/min
Net Power - ISO 9249 - 550 HP 477 HP
Number of Cylinders - 6 6
Net Torque - SAE J1349 - 2221 ft-lb 1834 ft·lbf
Engine Power - ISO 14396 - 598 HP -
Net Power - 80/1269/EEC - - 489 HP
Net Power - ISO 14396 - - 508 HP
Note (4) - - Meets Japan Small Volume Exemption.

Body Hoists

Type Twin, two-stage hydraulic cylinders with snubbing valve. - -
Pump Flow - High Idle 317 gal/min 112 gal/min 118 gal/min
Relief Valve Setting - Raise 3510 psi 2750 psi 2750 psi
Body Raise Time - High Idle 25 s 8 s 7.5 s
Body Lower Time - Float 18 s 10 s 10 s
Body Power Down- High Idle 18 s - -
Relief Valve Setting - Lower - 500 psi 500 psi
Body Power Down - High Idle - 10 s 10 s

Suspension

Type Self-contained nitrogen/oil cylinders, rear strut pin-to-pin mounting, top & bottom double shear clevis attachments - -
Effective Cylinder Stroke - Front 3.9 in - -
Effective Cylinder Stroke - Rear 3.7 in - -
Rear axle - Oscillation ±3.96 degrees 8.9 ° 8.9 °
Empty Loaded Cylinder Stroke Front - 9.2 in 9.2 in
Empty Loaded Cylinder Stroke Rear - 5.8 in 5.9 in

Service Refill Capacities

Fuel Tank 1000 gal (US) 140 gal (US) 140 gal (US)
Fuel Tank (Tier 4) 1200 gal (US) - -
Diesel Exhaust Fluid Tank 100 gal (US) - -
Cooling System 306 gal (US) 33 gal (US) 33 gal (US)
Crankcase 103 gal (US) 17 gal (US) 17 gal (US)
Front Wheels - Each 16 gal (US) - -
Differentials 330 gal (US) - -
Steering Tank 67 gal (US) 14.5 gal (US) 14.5 gal (US)
Steering System - Including Tank 95 gal (US) 23 gal (US) 23 gal (US)
Brake/Hoist Tank 203 gal (US) - -
Brake Hoist System - Includes Tank 489 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) 47 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) 6 gal (US)
Brake/Hoist Hydraulic Tank - 38 gal (US) 38 gal (US)

Weight Distributions - Approximate

Front Axle - Empty 47.20% 51.4 % 49 %
Rear Axle - Empty 52.80% 48.6 % 51 %
Front Axle - Loaded 33.30% 34.2 % 34 %
Rear Axle - Loaded 66.70% 65.8 % 66 %
Note Weight distributions optimized with Cat body. - -

Final Drives

Type Double reduction, planetary with full floating axles. - -
Differential Ratio 1.276:1 2.74:1 1.92:1
Planetary Ratio 16.67:1 4.80:1 4.80:1
Total Reduction Ratio 21.26:1 13.14:1 9.26:1
Note Double reduction, planetary with full floating axles. - -

Tires

Tires 59/80 R63 - -
Rims 44" x 63" - -
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. - 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.
Standard Tire - 21.00R33 (E4) 18.00R33 (E4)
Note (2) - - Caterpillar recommends the customer evaluates all job conditions and consults the tire manufacturer for proper tire selection.

Braking System

Service Brakes Service Brakes: Four-Corner, Wet Disc, Oil Cooled, Hydraulically Actuated - -
Front Wet Disc Brake Surface Area 20500 in² - -
Rear - Wet Disc Brake Surface Area 30750 in² - -
Standards Service and Secondary: ISO 3450:2011 - -
Parking Brake 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 - -
Heater / Defroster 38900 Btu/h - -
Note Ambient capabilities down to -30C (-22F) for heater/defroster and up to 50C (122F) for air conditioning. - -
ROPS Standards (1) The operator sound pressure level, 76 dB(A), complies with ISO 6394:2008 and ISO 6396:2008. - -
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. - -

Steering

Steering Angle 40 ° - -
Turning Diameter - Front 122.7 ft 57.7 ft 57.7 ft
Steering Standards ISO 5010:2007 ISO 5010:2007 ISO 5010:2007
Note Turning Diameter (ISO 7457:2009) - Target gross machine operating weight is 71 214 kg (157,000 lb).
Steer Angle - 40.5 ° 40.5 °
Turning Circle - Clearance Diameter - 66.6 ft 66.6 ft

Transmission

Forward - 1 6.6 mile/h 8 mile/h 7.4 mile/h
Forward - 2 8.9 mile/h 10.9 mile/h 10.1 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 18.5 mile/h
Forward - 5 21.8 mile/h 26.9 mile/h 25.1 mile/h
Forward - 6 29.4 mile/h 36.2 mile/h 33.8 mile/h
Forward - 7 39.5 mile/h 49.2 mile/h 45.8 mile/h
Reverse 7.4 mile/h 10.4 mile/h 8.8 mile/h
Top Speed - Loaded 39.5 mile/h - -
Note - - Maximum travel speeds with standard 18.00R33 (E4) tires.

Dimensions

Rear Axle - Clearance - Loaded 3.08 ft - -
Inside Body Depth - Maximum 11 ft 5.7 ft 4.6 ft
Overall Height - Body Raised 51.5 ft 27.1 ft 27.1 ft
Loaded Ground Clearance 2.58 ft - -
Loading Height - Empty 23 ft 11.6 ft 10.3 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 26.8 ft
Inside Body Length 32.75 ft 19 ft 18.5 ft
Overall Length 49.5 ft 28.9 ft 28.9 ft
Wheel Base 23.58 ft 13 ft 13 ft
Rear Axle - Tail 12.9 ft 9.5 ft 8.5 ft
Dump Clearance 6.58 ft 1.5 ft 1.7 ft
Centerline Front Tire Width 21.41 ft 10.4 ft 10.2 ft
Overall Canopy Width 29.91 ft - -
Outside Body Width 32 ft 12.9 ft 12.9 ft
Inside Body Width 27.91 ft 11.9 ft 11.9 ft
Centerline of Rear Dual Tire Width 20.41 ft 8.7 ft 8.3 ft
Overall Tire Width 31.25 ft 12.9 ft 12.1 ft
Height - Top of ROPS - 12.8 ft 12.7 ft
Ground Clearance - 1.6 ft 1.6 ft
Operating Width - 15.7 ft 15.7 ft
Engine Guard Clearance - 2 ft 1.8 ft
Front Canopy Height - 13.7 ft 13.5 ft
Rear Axle - Clearance - 1.9 ft 1.8 ft

Operating Specifications

Nominal Payload Class (100%) - 51.6 ton (US) 42.1 ton (US)
Top Speed - Loaded - 49.2 mile/h 45.8 mile/h
Maximum Payload Class (110%) - 56.7 ton (US) -
Body Capacity - SAE 2:1 - 40.8 yd³ 32.9 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 -
Target Payload (100%) - - 42.1 ton (US)
Maximum Working Payload (110%) - - 46.3 ton (US)
Maximum Allowable Payload (120%)* - - 50.5 ton (US)
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.

Brakes

Brake Surface - Front - 216 in² 216 in²
Brake Surface - Rear - 7794 in² 6235 in²
Brake Standards - ISO 3450:1996 ISO 3450:2011
Note - - Target gross machine operating weight is 71 214 kg (157,000 lb).

Capacity - Dual Slope - 100% Fill Factor

Heaped 2:1 (SAE) - 40.8 yd³ -
Struck - 31.3 yd³ 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 - 31.3 yd³ 23.01 yd³
Heaped 2:1 (SAE) - 40.9 yd³ -
Heaped (SAE 2:1)* - - 32.9 yd³
Note (1) - - Contact your local Cat dealer for body recommendation.
Note (2) - - *ISO 6483:1980.

ROPS

FOPS Standards - FOPS (Falling Objects Protective Structure) meets ISO 3449:2005 Level II FOPS criteria. Falling Objects Protective Structure (FOPS) 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. Rollover Protective Structure (ROPS) 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. 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 (2) - Exterior sound pressure power level for standard machine measured according to tests specified in ISO 6395:2008 is 118 dB(A). Exterior sound pressure power level for standard machine measured according to tests specified in ISO 6395:2008 is 116 dB(A).
Sound Standards (1) - Hearing protection may be needed when operating with open operator station & cab for extended periods or in noisy environment. Hearing protection may be needed when operating with open operator station & cab for extended periods or in noisy environment.
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