797F

Whether you're hauling copper, coal, gold, iron ore or overburden the 797F provides you with the best in class cost per unit of production. Including the improvements in safety, productivity, serviceability and comfort you will see why the 797F is the industry leader of its class. Combine these features with unmatched dealer support and you will see why more mine sites choose Cat Mining Trucks for their production needs.


SPECIFICATIONS
Engine
Engine Model Cat® C175-20
Gross Power - SAE J1995 4000 HP
Bore 6.9 in
Stroke 8.7 in
Displacement 6469 in³
Note (1) Power ratings apply at 1,750 rpm when tested under the specific conditions for the specified standard.
Note (2) Ratings based on SAE J1995 standard air conditions of 25° C (77° F) and 99 kPa (29.32 Hg) barometer. Power based on fuel having API gravity of 35 at 16° C (69° F) and an LHV of 42 780 kJ/kg (18,390 Btu/lb) when engine is used at 30° C (38° F).


Weights - Approximate
Body Weight Range 41 368-61 235 kg (91,200-135,000 lb)
Chassis Weight Range 210 630-219 146 kg (464,359-483,134 lb)
Target Gross Machine Operating Weight (GMW) 1375000 lb


Operating Specifications
Nominal Payload Capacity 400 ton (US)
Steer Angle 40 °
Heaped SAE (2:1) Capacity 240-267 m3 (314-350 yd3)
Machine Clearance Turning Diameter 138 ft
Top Speed - Loaded 42 mile/h


Final Drives
Differential Ratio 1.276:1
Planetary Ratio 16.67:1
Total Reduction Ratio 21.26:1


Transmission
Forward - 1 7 mile/h
Forward - 2 9.5 mile/h
Forward - 3 12.7 mile/h
Forward - 4 17.2 mile/h
Forward - 5 23.1 mile/h
Forward - 6 31.2 mile/h
Forward - 7 42 mile/h
Reverse 7.4 mile/h


Suspension
Rear axle - Oscillation ±4.0 degrees
Effective Cylinder Stroke - Front 12.3 in
Effective Cylinder Stroke - Rear 6.5 in


Body Hoists
Body Raise Time - High Idle 25 s
High Idle Body Lower Time - Float 19 s
Pump Flow - High Idle 317 gal/min
Relief Valve Setting - Raise 3510 psi


Brakes
Outside Diameter 42 in
Standards ISO 3450:2011
Brake Surface 51243 in²
Number of Discs per Side - Front 10
Number of Discs per Side - Rear 15


Approximate Weights - MSD II
Front Axle - Empty 47.2%
Front Axle - Loaded 33.3%
Rear Axle - Empty 52.8%
Rear Axle - Loaded 66.7%


Weight Distributions - Approximate
Front Axle - Empty 47.2%
Front Axle - Loaded 33.3%
Rear Axle - Empty 52.8%
Rear Axle - Loaded 66.7%


Capacity - MSD II - 100% Fill Factor
Heaped (SAE 2:1) 240-267 m3 (314-350 yd3)
Struck 188-213 m3 (246-290 yd3)


Service Refill Capacities
Cooling System 306 gal (US)
Crankcase 84 gal (US)
Steering Tank 67 gal (US)
Steering System - Including Tank 94 gal (US)
Brake Hoist System - Includes Tank 441 gal (US)
Brake/Hoist Hydraulic Lines 219 gal (US)
Brake/Hoist Tank 203 gal (US)
Differentials 311 gal (US)
Final Drive - Each 49 gal (US)
Front Wheels - Each 16 gal (US)
Fuel Tank 1000 gal (US)
Torque Converter Sump 80 gal (US)
Torque Converter/Transmission System - Including Sump 166 gal (US)


Tires
Tires 59/80R63 – Michelin or Bridgestone


Dimensions
Engine Guard Clearance - Loaded 3.33 ft
Front Canopy Height - Empty 25.33 ft
Height - Top of ROPS - Empty 21.4 ft
Inside Body Depth - Maximum 11 ft
Loaded Ground Clearance 2.58 ft
Loading Height - Empty 23 ft
Overall Height - Body Raised 51.5 ft
Rear Axle - Clearance - Loaded 3.08 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


ROPS
ROPS Standards ROPS (Rollover Protective Structure) for cab offered by Caterpillar meets ISO 3471:2008 ROPS criteria.


Sound
Sound Standards (1) The operator sound pressure level measured according to work cycle procedures specified in ISO 6394:2008 and 6396:2008 is 76 dB(A) for cab offered by Caterpillar when properly installed and maintained and tested with doors and windows closed.


Steering
Steering Standards ISO 5010:2007


Capacity - MSD II - 100% Fill Factor
Note Consult your local Cat dealer for truck body recommendations.


Engine
Emissions U.S. EPA Compliant. Where applicable, the Cat C175-20 engine is compliant with U.S. EPA emission standards.
Note (3) No low altitude arrangement (LAA) engine derating required up to 2134 m (7,000 ft) altitude.
Note (4) No high altitude arrangement (HAA) engine derating required up to 4877 m (16,000 ft) altitude.


Final Drives
Note Double reduction, planetary with full floating axles.


ROPS
FOPS Standards FOPS (Falling Objects Protective Structure) meets ISO 3449:2005 Level II FOPS criteria.


Sound
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.


Tires
Note Productive capabilities of the 797F are such that, under certain job conditions, TKPH (TMPH) capabilities of standard tires could be exceeded and, therefore, limit production.


Weights - Approximate
Note (1) Refer to the Cat Mining Truck 10/10/20 Payload Policy for maximum gross machine weight limitations.
Note (2) Body weight varies depending on body and liner configuration. Weight range for known applications.
Note (3) Chassis weight with 100 percent fuel, hoist, body mounting group, rims and tires.