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797F Mining Truck
794 AC Mining Truck
789 Next Generation

Weights - Approximate

Nominal Rated Payload 400 ton (US) 327 ton (US) 213 ton (US)
Rated Gross Machine Weight 1375000 lb 1150000 lb 715000 lb
Chassis Weight 474472 lb 426237 lb -
Body Weight 94799 lb 64346 lb 60406 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 full fuel and fluids, standard & mandatory attachments, 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 (4) Tier 4 Chassis Weight: 486263 lb (220565 kg) Tier 4 Final / Stage V chassis weight: 426312 lb (193372 kg) -
Note (3) - Refer to Cat Mining Truck 10/10/20 Overload Policy (AEXQ0250) for maximum gross machine weight limitations. -

Engine

Gross Power - SAE J1995 4000 HP 3500 HP -
Net Power - SAE J1349 3795 HP 3405 HP -
Engine Model Cat® C175-20 Cat® C175-16 Cat® 3516E
Rated Speed 1750 r/min 1800 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 6.9 in 6.7 in
Stroke 8.7 in 8.7 in 8.5 in
Displacement 6469 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. Contact factory for high altitude configuration. 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. Tier 4 / EU Stage V option available for regions that require these emissions standards. Optional 1417 kW / 1,900 HP engine rating.
Note (3) High Altitude Low Maintenance Ratio Engine Configuration (4x4) option available. Tier 4 / EU Stage V engine option Net Power - SAE J1349: 3434 HP (2561 kW) U.S. EPA Tier 4 Final / EU Stage V optional engine available for applicable markets.
Standard Gross Power - SAE J1995 - 3500 HP -
Optional Gross Power - SAE J1995 - 3100 HP -
Optional Gross Power - SAE J1995 (Option 2) - 2750 HP -
Emissions Rating - Fuel Optimized Fuel Optimized
Gross Power - SAE J1995:2014 - - 2100 HP
Net Power - SAE J1349:2011 - - 1975 HP

Body Hoists

Type Twin, two-stage hydraulic cylinders with snubbing valve. - Twin, two-stage hydraulic cylinders with snubbing valve.
Pump Flow - High Idle 317 gal/min - 106.5 gal/min
Relief Valve Setting - Raise 3510 psi 3029 psi 2749 psi
Body Raise Time - High Idle 25 s 24 s 14 s
Body Lower Time - Float 18 s - 16 s
Body Power Down- High Idle 18 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. -

Suspension

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 - +/- 5 degrees

Service Refill Capacities

Fuel Tank 1000 gal (US) 1300 gal (US) 1000 gal (US)
Fuel Tank (Tier 4) 1200 gal (US) - 55 gal (US)
Diesel Exhaust Fluid Tank 100 gal (US) 100 gal (US) 62 gal (US)
Cooling System 306 gal (US) 211 gal (US) 180 gal (US)
Crankcase 103 gal (US) 82 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) - -
Steering System - Including Tank 95 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. DEF Tank only available for EPA Tier 4 / EU Stage V engine option. -
Final Drive - Each - 67 gal (US) -
Hydraulic Tank - 296 gal (US) -
Hydraulic System - Including Tank - 385 gal (US) -
Fuel Tank - Standard - - 550 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)

Weight Distributions - Approximate

Front Axle - Empty 47.20% 49 % 50%
Rear Axle - Empty 52.80% 51 % 50%
Front Axle - Loaded 33.30% 33 % 33%
Rear Axle - Loaded 66.70% 67 % 67%
Note Weight distributions optimized with Cat body. - -

Final Drives

Type Double reduction, planetary with full floating axles. - Double reduction, planetary with full floating axles
Differential Ratio 1.276:1 - 2.35:1
Planetary Ratio 16.67:1 - 10.83:1
Total Reduction Ratio 21.26:1 35:01:00 25.46:1
Note Double reduction, planetary with full floating axles. - -

Tires

Tires 59/80 R63 - -
Rims 44" x 63" 36" 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. Quick Change Rims optional
Standard Tires - 53/80 R63 37 R57
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.
Optional Tires - - 40 R57
Optional Tire - - 42/90 R57

Braking System

Service Brakes 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 20500 in² 20378 in² 12662 in²
Rear - Wet Disc Brake Surface Area 30750 in² 30750 in² 20861 in²
Standards Service and Secondary: ISO 3450:2011 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 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 - -
Dynamic Retarding Power - Continuous - 5480 HP -

Capacity - HP Body - 100% Fill Factor

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

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. Rollover Protective Structure (ROPS) meets ISO 3471:2008 criteria for operator and ISO 13459:2012 for trainer. 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. Falling Object Protective Structure (FOPS) meets ISO 3449:2005 Level II for operator and ISO 13459:2012 Level II for trainer. FOPS (Falling Objects Protective Structure) meets ISO 3449:2005 Level II for Operator and ISO 13459:2012 Level II for Trainer.

Steering

Steering Angle 40 ° - -
Turning Diameter - Front 122.7 ft - -
Steering Standards ISO 5010:2007 ISO 5010:2007 ISO 5010:2007
Note Turning Diameter (ISO 7457:2009) Gross Machine Operating Weight is 521 631 kg (1,150,000 lb). -
Steer Angle - 39 ° 36.07 °

Transmission

Forward - 1 6.6 mile/h - 7.8 mile/h
Forward - 2 8.9 mile/h - 10.6 mile/h
Forward - 3 12 mile/h - 14.4 mile/h
Forward - 4 16.2 mile/h - 19.4 mile/h
Forward - 5 21.8 mile/h - 26.3 mile/h
Forward - 6 29.4 mile/h - 35.5 mile/h
Forward - 7 39.5 mile/h - -
Reverse 7.4 mile/h - 7.3 mile/h
Top Speed - Loaded 39.5 mile/h - 35.5 mile/h

Dimensions

Rear Axle - Clearance - Loaded 3.08 ft - -
Inside Body Depth - Maximum 11 ft - -
Overall Height - Body Raised 51.5 ft - -
Loaded Ground Clearance 2.58 ft - -
Loading Height - Empty 23 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 - -
Inside Body Length 32.75 ft - -
Overall Length 49.5 ft - -
Wheel Base 23.58 ft - -
Rear Axle - Tail 12.9 ft - -
Dump Clearance 6.58 ft - -
Centerline Front Tire Width 21.41 ft - -
Overall Canopy Width 29.91 ft - -
Outside Body Width 32 ft - -
Inside Body Width 27.91 ft - -
Centerline of Rear Dual Tire Width 20.41 ft - -
Overall Tire Width 31.25 ft - -

AC Drive System

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 -

Capacity - HE Body - 100% fill factor

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)

Height - Top of ROPS - 22.25 ft 5550 mm
Overall Length - 50.75 ft 12970 mm
Wheel Base - 21.83 ft 57000 mm
Rear Axle - Tail - 15.5 ft 3856 mm
Ground Clearance - 2.67 ft 1304 mm
Dump Clearance - 3 ft 1585 mm
Loading Height - Empty - 22.92 ft 6147 mm
Overall Height - Body Raised - 48.42 ft 11534 mm
Centerline Front Tire Width - 23 ft 5410 mm
Front Axle Clearance - 3.17 ft -
Canopy Width (without optional rock deflectors) - 29.75 ft -
Outside Body Width - 29.75 ft 7123 mm
Inside Body Width - 28.08 ft 6920 mm
Front Canopy Height - 26.33 ft 6739 mm
Rear Axle - Clearance - 3.08 ft 1263 mm
Centerline of Rear Dual Tire Width - 18.75 ft 4695 mm
Overall Tire Width - 28.67 ft 7120 mm
Overall Canopy Width - 31.5 ft 7769 mm
Overall Body Length - - 12945 mm
Inside Body Length - - 8730 mm
Rear Sidewall Height - - 1010 mm
Inside Body Depth - Maximum - - 3075 mm
Operating Width - - 7822 mm
Engine Guard Clearance - - 1290 mm

Sound

Sound Standards (1) - 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) - 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. -
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