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 770 Off-Highway Truck |
 794 AC Mining Truck |
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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. | - | - |
Engine |
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| Engine Model | Cat® C15 | Cat® C175-16 | - |
| Rated Engine Speed | 1700 r/min | - | - |
| Gross Power - SAE J1995 | 515 HP | 3500 HP | - |
| Net Power - SAE J1349 | 477 HP | 3405 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 | - | - |
| Bore | 5.4 in | 6.9 in | - |
| Stroke | 6.7 in | 8.7 in | - |
| Displacement | 927.6 in³ | 5187 in³ | - |
| Note (1) | Power rating applies at 1,700 rpm when tested under the specified condition for the specified standard. | Contact factory for high altitude configuration. | - |
| Note (2) | 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). | Tier 4 / EU Stage V option available for regions that require these emissions standards. | - |
| Note (3) | No engine derating required up to 3000 m (9,843 ft) altitude. | Tier 4 / EU Stage V engine option Net Power - SAE J1349: 3434 HP (2561 kW) | - |
| Note (4) | Meets Japan Small Volume Exemption. | - | - |
| Emissions | Meets U.S. EPA Tier 4 and EU Stage V emission standards. | - | - |
| Standard Gross Power - SAE J1995 | - | 3500 HP | - |
| Optional Gross Power - SAE J1995 | - | 3100 HP | - |
| Optional Gross Power - SAE J1995 (Option 2) | - | 2750 HP | - |
| Rated Speed | - | 1800 r/min | - |
| Emissions Rating | - | Fuel Optimized | - |
Weights - Approximate |
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| Target Gross Machine Operating Weight | 157000 lb | - | - |
| Target Gross Machine Weight | 157000 lb | - | - |
| Chassis Weight | 55948 lb | 426237 lb | - |
| Body Weight | 17306 lb | 64346 lb | - |
| Note (1) | Chassis weight with 100% fuel, hoist, body mounting group, rims, and tires. | Consult your tire manufacturer for maximum tire load. | - |
| Note (2) | Body weight is the standard Dual Slope body with no liner and will vary depending on configuration. | Chassis weight with full fuel and fluids, standard & mandatory attachments, hoist, body mounting group, rims, and tires | - |
| Nominal Rated Payload | - | 327 ton (US) | - |
| Rated Gross Machine Weight | - | 1150000 lb | - |
| Note (3) | - | Refer to Cat Mining Truck 10/10/20 Overload Policy (AEXQ0250) for maximum gross machine weight limitations. | - |
| Note (4) | - | Tier 4 Final / Stage V chassis weight: 426312 lb (193372 kg) | - |
Transmission |
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| Forward - 1 | 7.4 mile/h | - | - |
| Forward - 2 | 10.1 mile/h | - | - |
| Forward - 3 | 13.8 mile/h | - | - |
| Forward - 4 | 18.5 mile/h | - | - |
| Forward - 5 | 25.1 mile/h | - | - |
| Forward - 6 | 33.8 mile/h | - | - |
| Forward - 7 | 45.8 mile/h | - | - |
| Reverse | 8.8 mile/h | - | - |
| Note | Maximum travel speeds with standard 18.00R33 (E4) tires. | - | - |
Final Drives |
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| Differential Ratio | 1.92:1 | - | - |
| Planetary Ratio | 4.80:1 | - | - |
| Total Reduction Ratio | 9.26:1 | 35:01:00 | - |
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). | - | - |
Body Hoists |
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| Pump Flow - High Idle | 118 gal/min | - | - |
| Relief Valve Setting - Raise | 2750 psi | 3029 psi | - |
| Relief Valve Setting - Lower | 500 psi | - | - |
| Body Raise Time - High Idle | 7.5 s | 24 s | - |
| Body Lower Time - Float | 10 s | - | - |
| Body Power Down - High Idle | 10 s | - | - |
| Pump Flow - High Idle (HAA at 1,800 rpm) | - | 221 gal/min | - |
| Pump Flow - High Idle (LAA at 1,960 rpm) | - | 240 gal/min | - |
| High Idle Body Lower Time - Float | - | 20 s | - |
| Total Cycle Time | - | 44 s | - |
| Note (1) | - | Twin, two-stage hydraulic cylinders mounted inside main frame; double-acting cylinders in both stages. | - |
| Note (2) | - | Power raise in both stages; power down in both stages possible. | - |
| Note (3) | - | Automatic body-lower modulation reduces impact on frame. | - |
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. | - | - |
Weight Distributions - Approximate |
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| Front Axle - Empty | 49 % | 49 % | - |
| Front Axle - Loaded | 34 % | 33 % | - |
| Rear Axle - Empty | 51 % | 51 % | - |
| Rear Axle - Loaded | 66 % | 67 % | - |
Suspension |
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| Empty Loaded Cylinder Stroke Front | 9.2 in | - | - |
| Empty Loaded Cylinder Stroke Rear | 5.9 in | - | - |
| Rear axle - Oscillation | 8.9 ° | - | - |
Service Refill Capacities |
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| Fuel Tank | 140 gal (US) | 1300 gal (US) | - |
| Cooling System | 33 gal (US) | 211 gal (US) | - |
| Crankcase | 17 gal (US) | 82 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) | - | - |
| Brake Hoist System | 60 gal (US) | - | - |
| Torque Converter - Transmission System | 17 gal (US) | - | - |
| DEF Tank | 6 gal (US) | - | - |
| Final Drive - Each | - | 67 gal (US) | - |
| Hydraulic Tank | - | 296 gal (US) | - |
| Hydraulic System - Including Tank | - | 385 gal (US) | - |
| Diesel Exhaust Fluid Tank | - | 100 gal (US) | - |
| Note (1) | - | DEF Tank only available for EPA Tier 4 / EU Stage V engine option. | - |
Steering |
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| Steering Standards | ISO 5010:2007 | ISO 5010:2007 | - |
| Steer Angle | 40.5 ° | 39 ° | - |
| 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). | Gross Machine Operating Weight is 521 631 kg (1,150,000 lb). | - |
Tires |
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| Standard Tire | 18.00R33 (E4) | - | - |
| Note (1) | 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. | Quick Change Rims optional. | - |
| Note (2) | Caterpillar recommends the customer evaluates all job conditions and consults the tire manufacturer for proper tire selection. | Caterpillar recommends the customer evaluate all job conditions and consult tire manufacturer for proper tire selection and TKPH (TMPH) capabilities. | - |
| Standard Tires | - | 53/80 R63 | - |
| Rims | - | 36" x 63" | - |
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. | The operator sound pressure level measured according to work cycle procedures specified in ISO 6394 and 6396 is 75 dB(A) for cab offered by Caterpillar when properly installed, maintained, and tested with doors and windows closed. | - |
| Sound Standards (2) | Exterior sound pressure power level for standard machine measured according to tests specified in ISO 6395:2008 is 116 dB(A). | Hearing protection may be needed when operating with an open operator station and cab (when not properly maintained or doors/windows open) for extended periods or in a noisy environment. | - |
| 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 | - | - |
AC Drive System |
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| Total Reduction Ratio | - | 35:01:00 | - |
| Top Speed - Loaded | - | 37 mile/h | - |
| Generator/Alternator | - | Brushless, engine mounted, dual bearing | - |
| Controls | - | IGBT Inverter Technology, air cooled, pressurized cabinet with filtration | - |
| Wheel Motor | - | High-torque AC induction, rear axle mounted | - |
| Cooling System | - | Variable speed, hydraulically driven cooling system | - |
Braking System |
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| Service Brakes | - | Four-Corner, Wet Disc, Oil Cooled, Hydraulically Actuated | - |
| Front Wet Disc Brake Surface Area | - | 20378 in² | - |
| Rear - Wet Disc Brake Surface Area | - | 30750 in² | - |
| Standards | - | ISO 3450:2011 | - |
| Parking Brake | - | Four-corner, Multi-disc, Spring applied, Hydraulically Released | - |
| Load Brake | - | Rear service brakes | - |
| Dynamic Retarding Power - Continuous | - | 5480 HP | - |
Capacity - HE Body - 100% fill factor |
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| Struck | - | 108-133 m³ (142-175 yd³) | - |
| Heaped (SAE 2:1) | - | 180-222 m³ (236-290 yd³) | - |
| Dump Body Plate Thickness Varies Depending on Body Selection - Floor Plate | - | 0.63 in | - |
| Dump Body Plate Thickness Varies Depending on Body Selection - Front Plate | - | 0.35 in | - |
| Dump Body Plate Thickness Varies Depending on Body Selection - Side Plate | - | 0.31 in | - |
| Dump Body Plate Thickness Varies Depending on Body Selection - Canopy Plate | - | 0.2 in | - |
| Note | - | Contact your local Cat dealer for body recommendations. | - |
Dimensions (Approximate) |
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| Height - Top of ROPS | - | 22.25 ft | - |
| Overall Length | - | 50.75 ft | - |
| Wheel Base | - | 21.83 ft | - |
| Rear Axle - Tail | - | 15.5 ft | - |
| Ground Clearance | - | 2.67 ft | - |
| Dump Clearance | - | 3 ft | - |
| Loading Height - Empty | - | 22.92 ft | - |
| Overall Height - Body Raised | - | 48.42 ft | - |
| Centerline Front Tire Width | - | 23 ft | - |
| Front Axle Clearance | - | 3.17 ft | - |
| Canopy Width (without optional rock deflectors) | - | 29.75 ft | - |
| Outside Body Width | - | 29.75 ft | - |
| Inside Body Width | - | 28.08 ft | - |
| Front Canopy Height | - | 26.33 ft | - |
| Rear Axle - Clearance | - | 3.08 ft | - |
| Centerline of Rear Dual Tire Width | - | 18.75 ft | - |
| Overall Tire Width | - | 28.67 ft | - |
| Overall Canopy Width | - | 31.5 ft | - |
Cab |
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| ROPS Standards (1) | - | Rollover Protective Structure (ROPS) meets ISO 3471:2008 criteria for operator and ISO 13459:2012 for trainer. | - |
| FOPS Standards | - | Falling Object Protective Structure (FOPS) meets ISO 3449:2005 Level II for operator and ISO 13459:2012 Level II for trainer. | - |
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