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 798 AC Electric Drive Mining Truck |
 793F Mining Truck |
 789 Next Generation |
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Weights - Approximate |
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| Nominal Rated Payload | 410 ton (US) | 256 ton (US) | 213 ton (US) |
| Rated Gross Machine Weight | 1375000 lb | 851000 lb | 715000 lb |
| Chassis Weight | 453826 lb | 265639 lb | - |
| Body Weight Range | 38 833 - 43 275 kg (85,611 - 95,406 lb) | - | - |
| Note (1) | Consult your tire manufacturer for maximum tire load. | Consult your tire manufacturer for maximum tire load | Consult your tire manufacturer for maximum tire load |
| Note (2) | Chassis weight with 100% fuel, hoist, body mounting group, rims, and tires. | 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 (3) | Body weight varies depending on how body is equipped. | Refer to the Cat Mining Truck 10/10/20 Overload Policy for maximum gross machine weight limitations. | - |
| Body Weight | - | 67682 lb | 60406 lb |
Engine |
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| Gross Power - SAE J1995 | 3500 hp | 2650 hp | - |
| Engine Model | Cat® C175-16 | Cat® C175-16 | Cat® 3516E |
| Net Power - SAE J1349 | 3405 hp | 2478 hp | - |
| Optional Gross Power - SAE J1995 | 3100 hp | - | - |
| Rated Speed | 1800 r/min | 1750 r/min | 1650 r/min |
| Emissions Rating | Fuel Optimized | - | Fuel Optimized |
| Bore | 6.9 in | 6.9 in | 6.7 in |
| Stroke | 8.7 in | 8.7 in | 8.5 in |
| Displacement | 5187 in³ | 5187 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. | 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 / EU Stage V available for applicable markets. | EPA Tier 4 Final / EU Stage V available for applicable markets. | Optional 1417 kW / 1,900 HP engine rating. |
| Note (3) | Additional fuel optimized selectable power ratings: 2312 kW / 3,100 hp | - | U.S. EPA Tier 4 Final / EU Stage V optional engine available for applicable markets. |
| Emissions | - | Fuel Optimized | - |
| Gross Power - SAE J1995:2014 | - | - | 2100 hp |
| Net Power - SAE J1349:2011 | - | - | 1975 hp |
Service Refill Capacities - High Altitude Only |
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| Fuel Tank | 2000 gal (US) | - | - |
| Cooling System | 273 gal (US) | - | - |
| Crankcase | 124 gal (US) | - | - |
| Hydraulic Tank | 273 gal (US) | - | - |
| Hydraulic System (includes tank) | 342 gal (US) | - | - |
Service Refill Capacities |
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| Fuel Tank | 1300 gal (US) | 750 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) | 62 gal (US) |
| Cooling System | 211 gal (US) | 284 gal (US) | 180 gal (US) |
| Crankcase | 82 gal (US) | 82 gal (US) | 77 gal (US) |
| Final Drive - Each | 67 gal (US) | - | - |
| Hydraulic System - Including Tank | 385 gal (US) | - | - |
| Hydraulic Tank | 296 gal (US) | - | - |
| Grease Tank | 90 lb | - | - |
| Note (1) | DEF Tank only available for U.S. EPA Tier 4 Final / EU Stage V engine option | DEF Tank only available for EPA Tier 4 engine option. | - |
| Fuel Tank - Optional | - | 1300 gal (US) | - |
| Rear Axle - Housing | - | 260 gal (US) | - |
| Steering System - Including Tank | - | 77 gal (US) | - |
| Brake Hoist System - Includes Tank | - | 347 gal (US) | 347 gal (US) |
| Torque Converter - Transmission Sump | - | 27 gal (US) | - |
| Torque Converter/Transmission System - Including Sump | - | 55 gal (US) | - |
| Fuel Tank - Standard | - | - | 550 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) |
| Torque Converter - Transmission System - Including Sump | - | - | 55 gal (US) |
Steering |
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| Steer Angle | 39 ° | 36 ° | 36.07 ° |
| Turning Diameter - Front | 106.3 ft | 93.2 ft | - |
| Steering Standards | ISO 5010:2019 | SAE J15111 OCT90, ISO 5010:1992 | ISO 5010:2019 |
| Note | Turning Diameter (ISO 7457:1997) | - | - |
AC Drive System |
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| Total Reduction Ratio | 35:01:00 | - | - |
| Top Speed - Loaded | 40 mile/h | - | - |
| Generator/Alternator | Brushless, engine mounted, dual bearing | - | - |
| Controls | IGBT Inverter Technology, air cooled, pressurized cabinet with filtration | - | - |
| Wheel Motor | Cat high-torque AC induction, rear axle mounted | - | - |
| Cooling System | Cat variable speed, hydraulically driven cooling system | - | - |
Braking System |
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| Service Brakes | Four-Corner, Wet Disc, Oil Cooled, Hydraulically Actuated | Four-Corner, Wet Disc, Oil Cooled, Hydraulically Actuated | Four-Corner, Wet Disc, Oil Cooled, Hydraulically Actuated |
| Front Wet Disc Brake Surface Area | 22642 in² | 13921 in³ | 12662 in² |
| Rear - Wet Disc Brake Surface Area | 32730 in² | 20847 in³ | 20861 in² |
| Standards | Service and Secondary: ISO 3450:2011 | (Service and Secondary): ISO 3450:1996 | (Service and Secondary) ISO 3450:2011 |
| Electric Retarding | Radial Grid Design | - | - |
| Dynamic Retarding Power - Continuous | 5480 hp | - | - |
| Parking Brakes | Four-corner, Multi-disc, Spring Applied, Hydraulically Released | Four-corner, Multi-disc, Spring Applied, Hydraulically Released | - |
| Load Brake | Rear service brakes | Rear service brakes | - |
| Note | Anti-Lock Brake System (ABS) optional with CMD package | Anti-Lock Brake System (ABS) optional with CMD package | - |
| Parking Brake | - | - | Four-corner, Multi-disc, Spring applied, Hydraulically Released |
Weight Distributions - Approximate |
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| Front Axle - Empty | 47 % | 48 % | 50% |
| Rear Axle - Empty | 53 % | 52 % | 50% |
| Front Axle - Loaded | 33 % | 33 % | 33% |
| Rear Axle - Loaded | 67 % | 67 % | 67% |
| Note | Weight distributions optimized with Cat body. | - | - |
Capacity - HE Body - 100% fill factor |
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| Struck | 129-200 m³ (168-261 yd³) | - | - |
| Heaped (SAE 2:1) | 218-276 m³ (285-361 yd³) | - | - |
| Note | Contact your local Cat dealer for body recommendations. | - | - |
Body Hoists |
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| Type | Twin, two-stage hydraulic cylinders with snubbing valve. | Twin, two-stage hydraulic cylinders with snubbing valve | Twin, two-stage hydraulic cylinders with snubbing valve. |
| Pump Flow - High Idle | 257.3 gal/min | 224 gal/min | 106.5 gal/min |
| Relief Valve Setting - Raise | 3029 psi | 2955 psi | 2749 psi |
| Body Raise Time - High Idle | 21 s | 19 s | 14 s |
| Body Lower Time - Float | 22 s | 20 s | 16 s |
| Body Power Down- High Idle | 17.5 s | - | - |
| Note (1) | Twin, two-stage hydraulic cylinders mounted outside main frame; double-acting cylinders in both stages. | - | - |
| Note (2) | Power raise in both stages; power down capability in both stages. | - | - |
| Note (3) | Automatic body-lower modulation reduces impact on frame. | - | - |
| Body Power Down - High Idle | - | 17.5 s | - |
Suspension |
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| Type | Self-contained nitrogen/oil cylinders, 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 | Self-contained nitrogen/oil cylinders, pin-to-pin mounting, top and bottom double shear clevis attachments |
| Effective Cylinder Stroke - Front | 10 in | 5.1 in | 4.12 in |
| Effective Cylinder Stroke - Rear | 5 in | 4.2 in | 3.67 in |
| Rear axle - Oscillation | - | ±4.9 degrees | +/- 5 degrees |
Cab |
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| Air Conditioning | HFC - 134A refrigerant: 21,600 Btu/h | Air Conditioning (HFC - 134A refrigerant): 24,300 Btu/hr | (HFC - 134A refrigerant) 24,500 Btu/hr |
| Heater / Defroster | 24600 Btu/h | 38900 Btu/h | 33300 Btu/h |
| Note | Ambient capabilities down to -15C (5F) for heater/defroster and up to 50C (122F) for air conditioning. | Ambient capabilities down to -30C (-22F) for heater/defroster and up to 50C (122F) for air conditioning. | - |
| ROPS Standards (1) | ROPS (Rollover Protective Structure) meets ISO 3471:2008 for Operator and ISO 13459:2012 for Trainer. | The operator sound pressure level, 76 dB(A), complies with ISO 6394 and ISO 6396. | - |
| FOPS Standards | FOPS (Falling Objects Protective Structure) meets ISO 3449:2005 Level II for Operator and ISO 13459:2012 Level II for Trainer. | 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. |
| 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. |
Engine - High Altitude Only |
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| Engine Model | Cat® C175-20 | - | - |
| Gross Power SAE J1995:2014 | 4150 hp | - | - |
| Net Power - SAE J1349:2011 | 4000 hp | - | - |
| Rated Speed | 1750 r/min | - | - |
| Emissions Rating | Fuel Optimized | - | - |
| Bore | 6.9 in | - | - |
| Stroke | 8.7 in | - | - |
| Displacement | 6469 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. | - | - |
| Note 2 | Additional fuel optimized selectable power rating: 2983 kW / 4,000 hp | - | - |
Tires |
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| Rims | 44" x 63" Rims | 29" or 32" | 29” x 57” Rims |
| Standard Tires | 59/80 R63 | 40.00 R57 | 37 R57 |
| Note (1) | Quick Change Rims optional. | Extended life wheel stations optional. | Quick Change Rims optional |
| 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 evaluate all job conditions and consult tire manufacturer for proper tire selection and TKPH (TMPH) capabilities. | Caterpillar recommends the customer evaluate all job conditions and consult tire manufacturer for proper tire selection and TKPH (TMPH) capabilities. |
| Note | - | Quick Change Rims optional. | - |
| Optional Tires | - | - | 40 R57 |
| Optional Tire | - | - | 42/90 R57 |
Dimensions (Approximate) |
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| Height - Top of ROPS | 22.1 ft | - | 5550 mm |
| Overall Length | 51.44 ft | - | 12970 mm |
| Wheel Base | 21.9 ft | - | 57000 mm |
| Rear Axle - Tail | 16.07 ft | - | 3856 mm |
| Dump Clearance - Empty | 5.72 ft | - | - |
| Loading Height - Empty | 25.54 ft | - | 6147 mm |
| Overall Height - Body Raised | 48.85 ft | - | 11534 mm |
| Centerline Front Tire Width | 23.06 ft | - | 5410 mm |
| Front Axle Clearance - Loaded | 2.81 ft | - | - |
| Overall Canopy Width (with rock deflectors) | 33.15 ft | - | - |
| Outside Body/Canopy Width (without rock deflectors) | 31.62 ft | - | - |
| Inside Body Width | 29.44 ft | - | 6920 mm |
| Front Canopy Height - Empty | 26.01 ft | - | - |
| Rear Axle Clearance - Loaded | 2.8 ft | - | - |
| Centerline of Rear Dual Tire Width | 19.5 ft | - | 4695 mm |
| Overall Tire Width - Empty | 30.27 ft | - | - |
| Overall Length (High Altitude only) | 51.87 ft | - | - |
| Note | Dimensions listed includes canopy deflectors | - | - |
| Overall Body Length | - | - | 12945 mm |
| Inside Body Length | - | - | 8730 mm |
| Ground Clearance | - | - | 1304 mm |
| Dump Clearance | - | - | 1585 mm |
| Rear Sidewall Height | - | - | 1010 mm |
| Inside Body Depth - Maximum | - | - | 3075 mm |
| Operating Width | - | - | 7822 mm |
| Engine Guard Clearance | - | - | 1290 mm |
| Overall Canopy Width | - | - | 7769 mm |
| Outside Body Width | - | - | 7123 mm |
| Front Canopy Height | - | - | 6739 mm |
| Rear Axle - Clearance | - | - | 1263 mm |
| Overall Tire Width | - | - | 7120 mm |
Sound |
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| Sound Standards | The operator sound pressure level, 75 dB(A), measured according to ISO 6394:2008 and ISO 6396:2008. | The operator sound pressure level measured according to work cycle procedures specified in ISO 6394 and 6396 is 76 dB(A) for cab offered by Caterpillar, when properly installed and maintained and tested with doors and windows closed. | - |
| Sound Standards (1) | - | 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. | Operator sound pressure level, 77 dB(A) with direct drive and 75 dB(A) with optional clutch, tested to ISO 6396:2008. |
Capacity - HP Body - 100% Fill Factor |
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| Note (1) | - | Contact your local Cat dealer for body recommendation. | Consult your local Cat dealer for body recommendations |
| Struck | - | 112.6-151 m³ (147-197.5 yd³) | 77 m3(101 yd3) |
| Heaped (SAE 2:1)* | - | 162-191 m³ (212-250 yd³) | 187 |
| Note (2) | - | *ISO 6483:1980 | - |
Transmission |
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| Forward - 1 | - | 8 mile/h | 7.8 mile/h |
| Forward - 2 | - | 10.8 mile/h | 10.6 mile/h |
| Forward - 3 | - | 14.8 mile/h | 14.4 mile/h |
| Forward - 4 | - | 19.9 mile/h | 19.4 mile/h |
| Forward - 5 | - | 27.1 mile/h | 26.3 mile/h |
| Forward - 6 | - | 37.3 mile/h | 35.5 mile/h |
| Reverse | - | 7.3 mile/h | 7.3 mile/h |
| Top Speed - Loaded | - | 37.3 mile/h | 35.5 mile/h |
Final Drives |
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| Differential Ratio | - | 1.8:1 | 2.35:1 |
| Planetary Ratio | - | 16:01 | 10.83:1 |
| Total Reduction Ratio | - | 26.8:1 | 25.46:1 |
| Type | - | - | Double reduction, planetary with full floating axles |
Brakes |
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| Brake Surface - Front | - | 13921 in² | - |
| Brake Surface - Rear | - | 20847 in² | - |
| Standards | - | J-ISO 3450 JAN88, ISO 3450:1996 | - |
Capacity - MSD II - 100% Fill Factor |
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| Note | - | Contact your local Cat dealer for body recommendation. | - |
| Struck | - | 112-142 m³ (146-186 yd³) | - |
| Heaped (SAE 2:1) | - | 159-190 m3 (209-250 yd3) | - |
ROPS |
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| FOPS Standards | - | FOPS (Falling Objects Protective Structure) meets ISO 3449:1992 Level II FOPS criteria. | - |
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