797F Mining Truck

797F Mining Truck

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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 ...
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Operating Specifications

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

Engine

Engine Model
Cat® C175-20
Gross Power - SAE J1995
4000HP
Bore
6.9in
Stroke
8.7in
Displacement
6469in³
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).
Note (1)
Power ratings apply at 1,750 rpm when tested under the specific conditions for the specified standard.
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.

Transmission

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.

Suspension

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

Brakes

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

Service Refill Capacities

Cooling System
306gal (US)
Crankcase
84gal (US)
Steering Tank
67gal (US)
Steering System - Including Tank
94gal (US)
Fuel Tank
1000gal (US)
Final Drive - Each
49gal (US)
Differentials
311gal (US)
Brake Hoist System - Includes Tank
441gal (US)
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)

Capacity - MSD II - 100% Fill Factor

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

Weight Distributions - Approximate

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

Approximate Weights - MSD II

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

Body Hoists

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

Weights - Approximate

Target Gross Machine Operating Weight (GMW)
1375000lb
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)
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.

Dimensions

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.

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.
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.
Tires
59/80R63 – Michelin or Bridgestone

Steering

Steering Standards
ISO 5010:2007

Standard Equipment:

Optional Equipment:

    Optional Equipment
    • Cat Detect System
    • Cabin air precleaner
    • Throttle lock
    • Engine delay shutdown timer
    • Antifreeze/coolant protects to –50° C (–58° F)
    • Fuel tank (7570 L/2,000 gal)
    • SL-V grease injectors
    • Body heat
    • Rear axle lubrication cooler
    • External digital payload display
    • Oil renewal system
    • Oil renewal system with 3 day tank
    • Engine coolant and oil heater for cold weather starts
    • Road Analysis Control (RAC)
    • Portable fire extinguisher
    • Torque converter guard
    • Brake wear indicator gauge
    • Rims (wedge)
    • Rim guard