797F Mining Truck

797F Mining Truck

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.

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Operating Specifications

Nominal Payload Capacity
400tons
Top Speed – Loaded
42mph
Steer Angle
40Degrees
Turning Circle Clearance Diameter
138.0ft
Heaped SAE (2:1) Capacity
240-267 m3 (314-350 yd3)
Machine Clearance Turning Diameter
138ft
Nominal Payload Capacity
400ton (US)
Steer Angle
40°
Top Speed - Loaded
42mile/h

Engine

Engine Model
Cat® C175-20
Gross Power - SAE J1995
4000hp
Bore
6.9in
Stroke
8.7in
Displacement
6469in3
Note
Power ratings apply at 1,750 rpm when tested under the specific conditions for the specified standard.
Note
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).
Note
No low altitude arrangement (LAA) engine derating required up to 2134 m (7,000 ft) altitude.
Note
No high altitude arrangement (HAA) engine derating required up to 4877 m (16,000 ft) altitude.
Emissions
U.S. EPA Compliant. Where applicable, the Cat C175-20 engine is compliant with U.S. EPA emission standards.
Engine Model
Cat® C175-20
Gross Power - SAE J1995
4000HP
Bore
6.9in
Stroke
8.7in
Displacement
6469in³
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).
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.

Weights – Approximate

Target Gross Machine Operating Weight (GMW)
1375000lb
Note
Refer to the Cat Mining Truck 10/10/20 Payload Policy for maximum gross machine weight limitations.
Note
Body weight varies depending on body and liner configuration. Weight range for known applications.
Note
Chassis weight with 100 percent fuel, hoist, body mounting group, rims and tires.

Transmission

Forward 1
7.0mph
Forward 2
9.5mph
Forward 3
12.7mph
Forward 4
17.2mph
Forward 5
23.1mph
Forward 6
31.2mph
Forward 7
42.0mph
Reverse
7.4mph
Forward - 1
7mile/h
Forward - 2
9.5mile/h
Forward - 3
12.7mile/h
Forward - 4
17.2mile/h
Forward - 5
23.1mile/h
Forward - 6
31.2mile/h
Forward - 7
42mile/h
Reverse
7.4mile/h

Final Drives

Differential Ratio
1.276:1
Planetary Ratio
16.67:1
Total Reduction Ratio
21.26:1
Note
Double reduction, planetary with full floating axles.
Differential Ratio
1.276:1
Planetary Ratio
16.67:1
Total Reduction Ratio
21.26:1
Note
Double reduction, planetary with full floating axles.

Suspension

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

Brakes

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

Body Hoists

Pump Flow – High Idle
317.0gal/min
Relief Valve Setting – Raise
3510.0psi
Body Raise Time – High Idle
25.0Seconds
High Idle Body Lower Time - Float
19s
Pump Flow - High Idle
317gal/min
Body Raise Time - High Idle
25s
Relief Valve Setting - Raise
3510psi

Service Refill Capacities

Fuel Tank
1000gal
Cooling System
306.0gal
Crankcase
84.0gal
Steering Tank
67.0gal
Steering System (Includes Tank)
94.0gal
Brake/Hoist System (Includes Tank)
441.0gal
Differentials
311.0gal
Final Drives, Each
49.0gal
Brake/Hoist Hydraulic Lines
219gal (US)
Brake/Hoist Tank
203gal (US)
Front Wheels - Each
16gal (US)
Torque Converter Sump
80gal (US)
Torque Converter/Transmission System - Including Sump
166gal (US)
Cooling System
306gal (US)
Crankcase
84gal (US)
Steering Tank
67gal (US)
Steering System - Including Tank
94gal (US)
Brake Hoist System - Includes Tank
441gal (US)
Differentials
311gal (US)
Final Drive - Each
49gal (US)
Fuel Tank
1000gal (US)

Weight Distributions – Approximate

Front Axle – Loaded
33.3%
Rear Axle – Loaded
66.7%
Front Axle – Empty
47.2%
Rear Axle – Empty
52.8%

Approximate Weights – MSD II

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)

Dimensions

Overall Body Length
48.6ft
Inside Body Length
32.75ft
Overall Length
49.5ft
Wheelbase
23.58ft
Rear Axle to Tail
12.9ft
Dump Clearance
6.58ft
Loading Height – Empty
23.0ft
Inside Body Depth – Maximum
11.0ft
Overall Height – Body Raised
51.5ft
Centerline Front Tire Width
21.41ft
Engine Guard Clearance – Loaded
3.33ft
Overall Canopy Width
29.91ft
Outside Body Width
32.0ft
Inside Body Width
27.91ft
Rear Axle Clearance – Loaded
3.08ft
Centerline Rear Dual Tire Width
20.41ft
Overall Tire Width
31.25ft
Front Canopy Height - Empty
25.33ft
Loaded Ground Clearance
2.58ft
Height - Top of ROPS - Empty
21.4ft
Engine Guard Clearance - Loaded
3.33ft
Inside Body Depth - Maximum
11ft
Loading Height - Empty
23ft
Overall Height - Body Raised
51.5ft
Rear Axle - Clearance - Loaded
3.08ft
Overall Body Length
48.6ft
Inside Body Length
32.75ft
Overall Length
49.5ft
Wheel Base
23.58ft
Rear Axle - Tail
12.9ft
Dump Clearance
6.58ft
Centerline Front Tire Width
21.41ft
Overall Canopy Width
29.91ft
Outside Body Width
32ft
Inside Body Width
27.91ft
Centerline of Rear Dual Tire Width
20.41ft
Overall Tire Width
31.25ft

ROPS

ROPS Standards
ROPS (Rollover Protective Structure) for cab offered by Caterpillar meets ISO 3471:2008 ROPS criteria.
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.
FOPS Standards
FOPS (Falling Objects Protective Structure) meets ISO 3449:2005 Level II FOPS criteria.

Sound

Sound Standards
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.
Sound Standards
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 (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.
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.

Steering

Steering Standards
ISO 5010:2007
Steering Standards
ISO 5010:2007

Tires

Tire
59/80R63 – Michelin or Bridgestone
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.
Tires
59/80R63 – Michelin or Bridgestone
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

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)
1375000lb
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.

Capacity - MSD II - 100% Fill Factor

Note
Consult your local Cat dealer for truck body recommendations.
Heaped (SAE 2:1)
240-267 m3 (314-350 yd3)
Struck
188-213 m3 (246-290 yd3)

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%