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 797F Mining Truck |
 772 (07) Off-Highway Truck |
 789 Next Generation |
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Weights - Approximate |
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| Nominal Rated Payload | 400 ton (US) | - | 213 ton (US) |
| Rated Gross Machine Weight | 1375000 lb | - | 715000 lb |
| Chassis Weight | 474472 lb | 59223 lb | - |
| Body Weight | 94799 lb | 17306 lb | 60406 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 and 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 | - |
Engine |
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| Gross Power - SAE J1995 | 4000 HP | 605 HP | - |
| Net Power - SAE J1349 | 3795 HP | 550 HP | - |
| Engine Model | Cat® C175-20 | Cat® C18 | Cat® 3516E |
| Rated Speed | 1750 r/min | - | 1650 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 | 4766 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. | - | Optional 1417 kW / 1,900 HP engine rating. |
| Note (3) | High Altitude Low Maintenance Ratio Engine Configuration (4x4) option available. | - | U.S. EPA Tier 4 Final / EU Stage V optional engine available for applicable markets. |
| 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 | - |
| Gross Power - SAE J1995:2014 | - | - | 2100 HP |
| Net Power - SAE J1349:2011 | - | - | 1975 HP |
| Emissions Rating | - | - | Fuel Optimized |
Body Hoists |
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| 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 | 106.5 gal/min |
| Relief Valve Setting - Raise | 3510 psi | 2750 psi | 2749 psi |
| Body Raise Time - High Idle | 25 s | 8 s | 14 s |
| Body Lower Time - Float | 18 s | 10 s | 16 s |
| Body Power Down- High Idle | 18 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, rear strut pin-to-pin mounting, top & bottom double shear clevis attachments | - | Self-contained nitrogen/oil cylinders, pin-to-pin mounting, top and bottom double shear clevis attachments |
| Effective Cylinder Stroke - Front | 3.9 in | - | 4.12 in |
| Effective Cylinder Stroke - Rear | 3.7 in | - | 3.67 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 |
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| Fuel Tank | 1000 gal (US) | 140 gal (US) | 1000 gal (US) |
| Fuel Tank (Tier 4) | 1200 gal (US) | - | 55 gal (US) |
| Diesel Exhaust Fluid Tank | 100 gal (US) | - | 62 gal (US) |
| Cooling System | 306 gal (US) | 33 gal (US) | 180 gal (US) |
| Crankcase | 103 gal (US) | 17 gal (US) | 77 gal (US) |
| Front Wheels - Each | 16 gal (US) | - | 5.8 gal (US) |
| Differentials | 330 gal (US) | - | 161 gal (US) |
| Steering Tank | 67 gal (US) | 14.5 gal (US) | - |
| Steering System - Including Tank | 95 gal (US) | 23 gal (US) | - |
| Brake/Hoist Tank | 203 gal (US) | - | - |
| Brake Hoist System - Includes Tank | 489 gal (US) | - | 347 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) | - |
| Torque Converter - Transmission System | - | 17 gal (US) | - |
| Brake Hoist System | - | 60 gal (US) | 169 gal (US) |
| DEF Tank | - | 6 gal (US) | - |
| Brake/Hoist Hydraulic Tank | - | 38 gal (US) | - |
| Fuel Tank - Standard | - | - | 550 gal (US) |
| Steering System | - | - | 42 gal (US) |
| Steering System - Includes Tank | - | - | 46 gal (US) |
| Torque Converter - Transmission System - Including Sump | - | - | 55 gal (US) |
Weight Distributions - Approximate |
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| Front Axle - Empty | 47.20% | 51.4 % | 50% |
| Rear Axle - Empty | 52.80% | 48.6 % | 50% |
| Front Axle - Loaded | 33.30% | 34.2 % | 33% |
| Rear Axle - Loaded | 66.70% | 65.8 % | 67% |
| Note | Weight distributions optimized with Cat body. | - | - |
Final Drives |
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| Type | Double reduction, planetary with full floating axles. | - | Double reduction, planetary with full floating axles |
| Differential Ratio | 1.276:1 | 2.74:1 | 2.35:1 |
| Planetary Ratio | 16.67:1 | 4.80:1 | 10.83:1 |
| Total Reduction Ratio | 21.26:1 | 13.14:1 | 25.46:1 |
| Note | Double reduction, planetary with full floating axles. | - | - |
Tires |
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| Tires | 59/80 R63 | - | - |
| Rims | 44" x 63" | - | 29” x 57” Rims |
| 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) | - |
| Standard Tires | - | - | 37 R57 |
| Optional Tires | - | - | 40 R57 |
| Optional Tire | - | - | 42/90 R57 |
| Note (2) | - | - | Caterpillar recommends the customer evaluate all job conditions and consult tire manufacturer for proper tire selection and TKPH (TMPH) capabilities. |
Braking System |
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| 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 | - | 12662 in² |
| Rear - Wet Disc Brake Surface Area | 30750 in² | - | 20861 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 |
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| Struck | 225 yd³ / 172 m³ | - | 77 m3(101 yd3) |
| Heaped (SAE 2:1)* | 330 yd³ / 252 m³ | - | 143 m3(187 yd2) |
| Note (1) | Consult your local Cat dealer for body recommendations. | - | Consult your local Cat dealer for body recommendations |
Cab |
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| Air Conditioning | HFC - 134A refrigerant: 24,300 Btu/h | - | (HFC - 134A refrigerant) 24,500 Btu/hr |
| 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. | - | - |
| ROPS Standards (1) | The operator sound pressure level, 76 dB(A), complies with ISO 6394:2008 and ISO 6396:2008. | - | 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 3471:1994 criteria. | - | 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 3449:1992 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 |
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| 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 ° | 36.07 ° |
| Turning Circle - Clearance Diameter | - | 66.6 ft | - |
Transmission |
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| Forward - 1 | 6.6 mile/h | 8 mile/h | 7.8 mile/h |
| Forward - 2 | 8.9 mile/h | 10.9 mile/h | 10.6 mile/h |
| Forward - 3 | 12 mile/h | 14.8 mile/h | 14.4 mile/h |
| Forward - 4 | 16.2 mile/h | 19.8 mile/h | 19.4 mile/h |
| Forward - 5 | 21.8 mile/h | 26.9 mile/h | 26.3 mile/h |
| Forward - 6 | 29.4 mile/h | 36.2 mile/h | 35.5 mile/h |
| Forward - 7 | 39.5 mile/h | 49.2 mile/h | - |
| Reverse | 7.4 mile/h | 10.4 mile/h | 7.3 mile/h |
| Top Speed - Loaded | 39.5 mile/h | - | 35.5 mile/h |
Dimensions |
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| 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 |
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| 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 |
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| Brake Surface - Front | - | 216 in² | - |
| Brake Surface - Rear | - | 7794 in² | - |
| Brake Standards | - | ISO 3450:1996 | - |
Capacity - Dual Slope - 100% Fill Factor |
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| Heaped 2:1 (SAE) | - | 40.8 yd³ | - |
| Struck | - | 31.3 yd³ | - |
Capacity - Flat Floor - 100% Fill Factor |
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| Struck | - | 31.3 yd³ | - |
| Heaped 2:1 (SAE) | - | 40.9 yd³ | - |
ROPS |
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| 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 |
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| 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. | - |
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 |
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