Operating Specifications
- Nominal Payload Capacity
-
400 tons
- Top Speed – Loaded
-
42 mph
- Steer Angle
-
40 Degrees
- Turning Circle Clearance Diameter
-
138 ft
- Heaped SAE (2:1) Capacity
-
240-267 m³ (314-350 yd³)
- Machine Clearance Turning Diameter
-
138 ft
- Nominal Payload Capacity
-
401 ton (US)
- Steer Angle
-
40 °
- Top Speed - Loaded
-
42 mile/h
Engine
- Engine Model
-
Cat® C175-20
- Gross Power - SAE J1995
-
4,000 hp
- Bore
-
7 in
- Stroke
-
9 in
- Displacement
-
6,469 in3
- 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
-
4,000 HP
- Bore
-
7 in
- Stroke
-
9 in
- Displacement
-
6,469 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)
-
U.S. EPA Tier 4 Final available for applicable markets.
- 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.
- Note (3)
-
High Altitude Low Maintenance Ratio Engine Configuration (4x4) option available.
- Note (4)
-
No high altitude arrangement (HAA) engine derating required up to 4877 m (16,000 ft) altitude.
- Net Power - SAE J1349
-
3,795 HP
- Rated Speed
-
1,750 r/min
Weights – Approximate
- Target Gross Machine Operating Weight (GMW)
-
1,375,000 lb
- 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 mph
- Forward 2
-
10 mph
- Forward 3
-
13 mph
- Forward 4
-
17 mph
- Forward 5
-
23 mph
- Forward 6
-
31 mph
- Forward 7
-
42 mph
- Reverse
-
7 mph
- Forward - 1
-
7 mile/h
- Forward - 2
-
9 mile/h
- Forward - 3
-
12 mile/h
- Forward - 4
-
16 mile/h
- Forward - 5
-
22 mile/h
- Forward - 6
-
29 mile/h
- Forward - 7
-
40 mile/h
- Reverse
-
7 mile/h
- Top Speed - Loaded
-
40 mile/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.
- Type
-
Double reduction, planetary with full floating axles.
Suspension
- Effective Cylinder Stroke – Front
-
12 in
- Effective Cylinder Stroke – Rear
-
7 in
- Rear Axle Oscillation
-
±4.0 degrees
- Rear axle - Oscillation
-
±3.96 degrees
- Effective Cylinder Stroke - Front
-
4 in
- Effective Cylinder Stroke - Rear
-
4 in
- Type
-
Self-contained nitrogen/oil cylinders, rear strut pin-to-pin mounting, top & bottom double shear clevis attachments
Brakes
- Number of Discs per Side – Front
-
10
- Number of Discs per Side – Rear
-
15
- Brake Surface
-
51,243 in²
- 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 gal/min
- Relief Valve Setting – Raise
-
3,510 psi
- Body Raise Time – High Idle
-
25 Seconds
- High Idle Body Lower Time - Float
-
19 s
- Body Raise Time - High Idle
-
25 s
- Pump Flow - High Idle
-
317 gal/min
- Relief Valve Setting - Raise
-
3,510 psi
- Type
-
Twin, two-stage hydraulic cylinders with snubbing valve.
- Body Lower Time - Float
-
18 s
- Body Power Down- High Idle
-
18 s
Service Refill Capacities
- Fuel Tank
-
1,000 gal
- Cooling System
-
306 gal
- Crankcase
-
84 gal
- Steering Tank
-
67 gal
- Steering System (Includes Tank)
-
94 gal
- Brake/Hoist System (Includes Tank)
-
441 gal
- Differentials
-
311 gal
- Final Drives, Each
-
49 gal
- Brake/Hoist Hydraulic Lines
-
219 gal (US)
- Brake/Hoist Tank
-
203 gal (US)
- Front Wheels - Each
-
16 gal (US)
- Torque Converter Sump
-
80 gal (US)
- Torque Converter/Transmission System - Including Sump
-
166 gal (US)
- Cooling System
-
306 gal (US)
- Crankcase
-
103 gal (US)
- Steering Tank
-
67 gal (US)
- Steering System - Including Tank
-
95 gal (US)
- Brake Hoist System - Includes Tank
-
489 gal (US)
- Differentials
-
330 gal (US)
- Final Drive - Each
-
49 gal (US)
- Fuel Tank
-
1,000 gal (US)
- DEF Tank
-
99 gal (US)
- Note (1)
-
DEF Tank only available for EPA Tier 4 engine option.
- Diesel Exhaust Fluid Tank
-
100 gal (US)
- Fuel Tank (Tier 4)
-
1,200 gal (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%
Dimensions
- Overall Body Length
-
49 ft
- Inside Body Length
-
33 ft
- Overall Length
-
50 ft
- Wheelbase
-
24 ft
- Rear Axle to Tail
-
13 ft
- Dump Clearance
-
7 ft
- Loading Height – Empty
-
23 ft
- Inside Body Depth – Maximum
-
11 ft
- Overall Height – Body Raised
-
52 ft
- Centerline Front Tire Width
-
21 ft
- Engine Guard Clearance – Loaded
-
3 ft
- Overall Canopy Width
-
30 ft
- Outside Body Width
-
32 ft
- Inside Body Width
-
28 ft
- Rear Axle Clearance – Loaded
-
3 ft
- Centerline Rear Dual Tire Width
-
20 ft
- Overall Tire Width
-
31 ft
- Front Canopy Height - Empty
-
25 ft
- Loaded Ground Clearance
-
3 ft
- Height - Top of ROPS - Empty
-
21 ft
- Inside Body Depth - Maximum
-
11 ft
- Engine Guard Clearance - Loaded
-
3 ft
- Loading Height - Empty
-
23 ft
- Overall Height - Body Raised
-
52 ft
- Rear Axle - Clearance - Loaded
-
3 ft
- Overall Body Length
-
49 ft
- Inside Body Length
-
33 ft
- Overall Length
-
50 ft
- Wheel Base
-
24 ft
- Rear Axle - Tail
-
13 ft
- Dump Clearance
-
7 ft
- Centerline Front Tire Width
-
21 ft
- Overall Canopy Width
-
30 ft
- Outside Body Width
-
32 ft
- Inside Body Width
-
28 ft
- Centerline of Rear Dual Tire Width
-
20 ft
- Overall Tire Width
-
31 ft
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
- Steer Angle
-
40 °
- Steering Angle
-
40 °
- Turning Diameter - Front
-
123 ft
- Note
-
Turning Diameter (ISO 7457:2009)
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
-
59/80 R63
- 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.
- Rims
-
44" x 63"
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)
-
1,375,000 lb
- Note (1)
-
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.
- Note (3)
-
Chassis weight with 100 percent fuel, hoist, body mounting group, rims and tires.
- Nominal Rated Payload
-
400 ton (US)
- Chassis Weight
-
474,472 lb
- Rated Gross Machine Weight
-
1,375,000 lb
- Note (4)
-
Tier 4 Chassis Weight: 486263 lb (220565 kg)
- Body Weight
-
94,799 lb
Braking System
- Outside Diameter
-
42 in
- Note
-
Anti-Lock Brake System (ABS) optional with CMD package
- Service Brakes
-
Service Brakes: Four-Corner, Wet Disc, Oil Cooled, Hydraulically Actuated
- Front Wet Disc Brake Surface Area
-
20,500 in²
- Rear - Wet Disc Brake Surface Area
-
30,750 in²
- Standards
-
Service and Secondary: ISO 3450:2011
- Parking Brake
-
Four-corner, Multi-disc, Spring Applied, Hydraulically Released
- Load Brake
-
Rear service brakes
Capacity - HP Body - 100% Fill Factor
- Heaped (SAE 2:1)*
-
330 yd³ / 252 m³
- Struck
-
225 yd³ / 172 m³
- Note (1)
-
Consult your local Cat dealer for body recommendations.
Cab
- ROPS Standards (2)
-
ROPS (Rollover Protective Structure) meets ISO 3471:1994 criteria.
- Air Conditioning
-
HFC - 134A refrigerant: 24,300 Btu/h
- Heater / Defroster
-
38,900 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.
- FOPS Standards
-
FOPS (Falling Objects Protective Structure) meets ISO 3449:1992 Level II criteria.
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)
ROPS
- 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.
Weight Distributions - Approximate
- Note
-
Weight distributions optimized with Cat body.
- Front Axle - Empty
-
47.20%
- Front Axle - Loaded
-
33.30%
- Rear Axle - Empty
-
52.80%
- Rear Axle - Loaded
-
66.70%
Approximate Weights - MSD II
- Front Axle - Empty
-
47.20%
- Front Axle - Loaded
-
33.30%
- Rear Axle - Empty
-
52.80%
- Rear Axle - Loaded
-
66.70%
Approximate Weights - HP Body
- Front Axle - Empty
-
47.20%
- Front Axle - Loaded
-
33.30%
- Rear Axle - Empty
-
52.80%
- Rear Axle - Loaded
-
66.70%