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 789 Next Generation |
 770 Off-Highway Truck |
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Weights - Approximate |
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| Nominal Rated Payload | 213 ton (US) | - | - |
| Rated Gross Machine Weight | 715000 lb | - | - |
| Body Weight | 60406 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 and 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. | - |
| Target Gross Machine Operating Weight | - | 157000 lb | - |
| Target Gross Machine Weight | - | 157000 lb | - |
| Chassis Weight | - | 55948 lb | - |
Engine |
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| Gross Power - SAE J1995:2014 | 2100 HP | - | - |
| Engine Model | Cat® 3516E | Cat® C15 | - |
| Net Power - SAE J1349:2011 | 1975 HP | - | - |
| Rated Speed | 1650 r/min | - | - |
| Emissions Rating | Fuel Optimized | - | - |
| Bore | 6.7 in | 5.4 in | - |
| Stroke | 8.5 in | 6.7 in | - |
| Displacement | 4766 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) | Optional 1417 kW / 1,900 HP engine rating. | 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) | U.S. EPA Tier 4 Final / EU Stage V optional engine available for applicable markets. | No engine derating required up to 3000 m (9,843 ft) altitude. | - |
| Rated Engine Speed | - | 1700 r/min | - |
| Gross Power - SAE J1995 | - | 515 HP | - |
| Net Power - SAE J1349 | - | 477 HP | - |
| Net Power - ISO 9249 | - | 477 HP | - |
| Net Power - 80/1269/EEC | - | 489 HP | - |
| Net Power - ISO 14396 | - | 508 HP | - |
| Net Torque - SAE J1349 | - | 1834 ft·lbf | - |
| Number of Cylinders | - | 6 | - |
| Note (4) | - | Meets Japan Small Volume Exemption. | - |
| Emissions | - | Meets U.S. EPA Tier 4 and EU Stage V emission standards. | - |
Weight Distributions - Approximate |
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| Front Axle - Empty | 50% | 49 % | - |
| Rear Axle - Loaded | 67% | 66 % | - |
| Rear Axle - Empty | 50% | 51 % | - |
| Front Axle - Loaded | 33% | 34 % | - |
Final Drives |
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| Planetary Ratio | 10.83:1 | 4.80:1 | - |
| Total Reduction Ratio | 25.46:1 | 9.26:1 | - |
| Type | Double reduction, planetary with full floating axles | - | - |
| Differential Ratio | 2.35:1 | 1.92:1 | - |
Transmission |
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| Forward - 1 | 7.8 mile/h | 7.4 mile/h | - |
| Forward - 2 | 10.6 mile/h | 10.1 mile/h | - |
| Forward - 3 | 14.4 mile/h | 13.8 mile/h | - |
| Forward - 4 | 19.4 mile/h | 18.5 mile/h | - |
| Forward - 5 | 26.3 mile/h | 25.1 mile/h | - |
| Forward - 6 | 35.5 mile/h | 33.8 mile/h | - |
| Reverse | 7.3 mile/h | 8.8 mile/h | - |
| Top Speed - Loaded | 35.5 mile/h | - | - |
| Forward - 7 | - | 45.8 mile/h | - |
| Note | - | Maximum travel speeds with standard 18.00R33 (E4) tires. | - |
Tires |
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| Standard Tires | 37 R57 | - | - |
| Optional Tires | 40 R57 | - | - |
| Optional Tire | 42/90 R57 | - | - |
| Rims | 29” x 57” Rims | - | - |
| Note (1) | Quick Change Rims optional | 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. | - |
| 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 evaluates all job conditions and consults the tire manufacturer for proper tire selection. | - |
| Standard Tire | - | 18.00R33 (E4) | - |
Braking System |
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| Service Brakes | Four-Corner, Wet Disc, Oil Cooled, Hydraulically Actuated | - | - |
| Front Wet Disc Brake Surface Area | 12662 in² | - | - |
| Rear - Wet Disc Brake Surface Area | 20861 in² | - | - |
| Standards | (Service and Secondary) ISO 3450:2011 | - | - |
| Parking Brake | Four-corner, Multi-disc, Spring applied, Hydraulically Released | - | - |
Capacity - HP Body - 100% Fill Factor |
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| Struck | 77 m3(101 yd3) | - | - |
| Heaped (SAE 2:1)* | 143 m3(187 yd2) | - | - |
| Note (1) | Consult your local Cat dealer for body recommendations | - | - |
Body Hoists |
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| Type | Twin, two-stage hydraulic cylinders with snubbing valve. | - | - |
| Pump Flow - High Idle | 106.5 gal/min | 118 gal/min | - |
| Relief Valve Setting - Raise | 2749 psi | 2750 psi | - |
| Body Raise Time - High Idle | 14 s | 7.5 s | - |
| Body Lower Time - Float | 16 s | 10 s | - |
| Relief Valve Setting - Lower | - | 500 psi | - |
| Body Power Down - High Idle | - | 10 s | - |
Suspension |
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| Type | Self-contained nitrogen/oil cylinders, pin-to-pin mounting, top and bottom double shear clevis attachments | - | - |
| Effective Cylinder Stroke - Front | 4.12 in | - | - |
| Effective Cylinder Stroke - Rear | 3.67 in | - | - |
| Rear axle - Oscillation | +/- 5 degrees | 8.9 ° | - |
| Empty Loaded Cylinder Stroke Front | - | 9.2 in | - |
| Empty Loaded Cylinder Stroke Rear | - | 5.9 in | - |
Service Refill Capacities |
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| Fuel Tank - Standard | 550 gal (US) | - | - |
| Fuel Tank | 1000 gal (US) | 140 gal (US) | - |
| Fuel Tank (Tier 4) | 55 gal (US) | - | - |
| Diesel Exhaust Fluid Tank | 62 gal (US) | - | - |
| Cooling System | 180 gal (US) | 33 gal (US) | - |
| Crankcase | 77 gal (US) | 17 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 | 169 gal (US) | 60 gal (US) | - |
| Brake Hoist System - Includes Tank | 347 gal (US) | - | - |
| Torque Converter - Transmission System - Including Sump | 55 gal (US) | - | - |
| Differential - Final Drives | - | 47 gal (US) | - |
| Steering Tank | - | 14.5 gal (US) | - |
| Steering System - Including Tank | - | 23 gal (US) | - |
| Brake/Hoist Hydraulic Tank | - | 38 gal (US) | - |
| Torque Converter - Transmission System | - | 17 gal (US) | - |
| DEF Tank | - | 6 gal (US) | - |
Cab |
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| Air Conditioning | (HFC - 134A refrigerant) 24,500 Btu/hr | - | - |
| Heater / Defroster | 33300 Btu/h | - | - |
| ROPS Standards (1) | The operator sound pressure level, 77 dB(A) with direct drive and 75 dB(A) with optional clutch, tested to ISO 6396:2008. | - | - |
| ROPS Standards (2) | 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. | - | - |
Steering |
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| Steer Angle | 36.07 ° | 40.5 ° | - |
| Steering Standards | ISO 5010:2007 | ISO 5010:2007 | - |
| Turning Diameter - Front | - | 57.7 ft | - |
| Turning Circle - Clearance Diameter | - | 66.6 ft | - |
| Note | - | Target gross machine operating weight is 71 214 kg (157,000 lb). | - |
Dimensions (Approximate) |
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| Height - Top of ROPS | 5550 mm | - | - |
| Overall Body Length | 12945 mm | - | - |
| Inside Body Length | 8730 mm | - | - |
| Overall Length | 12970 mm | - | - |
| Wheel Base | 57000 mm | - | - |
| Rear Axle - Tail | 3856 mm | - | - |
| Ground Clearance | 1304 mm | - | - |
| Dump Clearance | 1585 mm | - | - |
| Loading Height - Empty | 6147 mm | - | - |
| Rear Sidewall Height | 1010 mm | - | - |
| Inside Body Depth - Maximum | 3075 mm | - | - |
| Overall Height - Body Raised | 11534 mm | - | - |
| Operating Width | 7822 mm | - | - |
| Centerline Front Tire Width | 5410 mm | - | - |
| Engine Guard Clearance | 1290 mm | - | - |
| Overall Canopy Width | 7769 mm | - | - |
| Outside Body Width | 7123 mm | - | - |
| Inside Body Width | 6920 mm | - | - |
| Front Canopy Height | 6739 mm | - | - |
| Rear Axle - Clearance | 1263 mm | - | - |
| Centerline of Rear Dual Tire Width | 4695 mm | - | - |
| Overall Tire Width | 7120 mm | - | - |
Operating Specifications |
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| Nominal Payload Class (100%) | - | 42.1 ton (US) | - |
| Top Speed - Loaded | - | 45.8 mile/h | - |
| Target Payload (100%) | - | 42.1 ton (US) | - |
| Maximum Working Payload (110%) | - | 46.3 ton (US) | - |
| Maximum Allowable Payload (120%)* | - | 50.5 ton (US) | - |
| Body Capacity - SAE 2:1 | - | 32.9 yd³ | - |
| 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 |
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| Brake Surface - Front | - | 216 in² | - |
| Brake Surface - Rear | - | 6235 in² | - |
| Brake Standards | - | ISO 3450:2011 | - |
| Note | - | Target gross machine operating weight is 71 214 kg (157,000 lb). | - |
Capacity - Dual Slope - 100% Fill Factor |
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| Struck | - | 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 |
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| Struck | - | 23.01 yd³ | - |
| Heaped (SAE 2:1)* | - | 32.9 yd³ | - |
| Note (1) | - | Contact your local Cat dealer for body recommendation. | - |
| Note (2) | - | *ISO 6483:1980. | - |
ROPS |
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| ROPS Standards | - | Rollover Protective Structure (ROPS) for cab offered by Caterpillar meets ISO 3471:2008 ROPS criteria. | - |
| FOPS Standards | - | Falling Objects Protective Structure (FOPS) meets ISO 3449:2005 Level II FOPS criteria. | - |
Sound |
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| Sound Standards (1) | - | Hearing protection may be needed when operating with open operator station & cab for extended periods or in noisy environment. | - |
| Sound Standards (2) | - | Exterior sound pressure power level for standard machine measured according to tests specified in ISO 6395:2008 is 116 dB(A). | - |
| Sound Standards (3) | - | Operator Equivalent Sound Pressure Level is 79 dB(A) & 74 dB(A) with EU sound suppression applied when ISO 6396:2008 is used. | - |
Dimensions |
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| Height - Top of ROPS | - | 12.7 ft | - |
| Overall Body Length | - | 26.8 ft | - |
| Inside Body Length | - | 18.5 ft | - |
| Overall Length | - | 28.9 ft | - |
| Wheel Base | - | 13 ft | - |
| Rear Axle - Tail | - | 8.5 ft | - |
| Ground Clearance | - | 1.6 ft | - |
| Dump Clearance | - | 1.7 ft | - |
| Loading Height - Empty | - | 10.3 ft | - |
| Inside Body Depth - Maximum | - | 4.6 ft | - |
| Overall Height - Body Raised | - | 27.1 ft | - |
| Operating Width | - | 15.7 ft | - |
| Centerline Front Tire Width | - | 10.2 ft | - |
| Engine Guard Clearance | - | 1.8 ft | - |
| Outside Body Width | - | 12.9 ft | - |
| Inside Body Width | - | 11.9 ft | - |
| Front Canopy Height | - | 13.5 ft | - |
| Rear Axle - Clearance | - | 1.8 ft | - |
| Centerline of Rear Dual Tire Width | - | 8.3 ft | - |
| Overall Tire Width | - | 12.1 ft | - |
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