Off-Highway Trucks

Weights - Approximate

Nominal Rated Payload
401ton (US)
Rated Gross Machine Weight
1375000lb
Chassis Weight
474472lb
Body Weight Range
41 368-61 235 kg (91,200-135,000 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.
Note (4)
Tier 4 Chassis Weight: 486263 lb (220565 kg)

Engine

Engine Model
Cat® C175-20
Gross Power - SAE J1995
4000HP
Bore
6.9in
Stroke
8.7in
Displacement
6469in³
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 (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).
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.

Body Hoists

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

Suspension

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

Brakes

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

Approximate Weights - MSD II

Front Axle - Empty
47.20%
Front Axle - Loaded
33.30%
Rear Axle - Empty
52.80%
Rear Axle - Loaded
66.70%

Weight Distributions - Approximate

Front Axle - Empty
47.20%
Front Axle - Loaded
33.30%
Rear Axle - Empty
52.80%
Rear Axle - Loaded
66.70%

Service Refill Capacities

Fuel Tank
1000gal (US)
Cooling System
306gal (US)
Crankcase
84gal (US)
Front Wheels - Each
16gal (US)
Final Drive - Each
49gal (US)
Steering Tank
67gal (US)
Differentials
311gal (US)
Steering System - Including Tank
94gal (US)
Brake/Hoist Hydraulic Lines
219gal (US)
Brake Hoist System - Includes Tank
441gal (US)
Brake/Hoist Tank
203gal (US)
Torque Converter Sump
80gal (US)
Torque Converter/Transmission System - Including Sump
166gal (US)
DEF Tank
99gal (US)
Note (1)
DEF Tank only available for EPA Tier 4 engine option.

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.

Approximate Weights - HP Body

Front Axle - Empty
47.20%
Front Axle - Loaded
33.30%
Rear Axle - Empty
52.80%
Rear Axle - Loaded
66.70%

Braking System

Outside Diameter
42in

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.

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
Top Speed - Loaded
42mile/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.

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

Tires

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.

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.

Steering

Steer Angle
40°
Steering Standards
ISO 5010:2007

Standard Equipment:

  • Electrical
    • Alarm, back-up
    • Brushless, alternator, 150 ampere
    • Batteries, 12V (2) 93 amp-hour
    • Converter, 12V electrical
    • Electrical system, 24V, 10, 20 and 25 amp
    • Battery charge receptacle
    • Lighting system:
      – Back-up and hazard lights
      – Directional signals (front, rear LED)
      – Front stair access/Service deck
      – Stop/tail lights (LED)
      – Engine compartment
      – VIMS, blue light (LED)
      – Headlights with lo-hi beam selector
  • Operator Environment
    • Standard cab:
      – Standard optimized operator seats
      – Suspension trainer seat
      – Flip down front visor
      – Standard side of cab access
    • Deluxe cab:
      – Heated and ventilated seats
      – Suspension trainer seat
      – Retractable front visor
      – Rear of cab access and standard side of cab access
      – Power windows
    • Deluxe cold weather cab:
      – Heated and ventilated seats
      – Suspension trainer seat
      – Retractable front visor
      – Rear of cab access and standard side of cab access
      – Power windows
      – Heated mirrors
    • All cab options include the following features:
      • Air conditioner with automatic climate control
      • 12V DC power supply (3)
      • Coat hook
      • Diagnostic connection port
      • Dome courtesy light
      • Entertainment radio ready 5 amp converter, speakers and wiring harness
      • Gauges/Indicators:
        – Gauge panel: Transmission fluid temperature; Brake oil temperature; Engine coolant temperature; Fuel level; Torque converter oil temperature
        – Electric engine control fault indicator
        – Electric hour meter
        – Speedometer
        – Tachometer
        – Transmission gear indicator
        – VIMS message center with advisor
      • Heater/defroster (11 070 kCal/43,930 Btu)
      • Horn
      • Cat Detect System
      • Storage compartments
      • Hoist, body control (electric)
      • ROPS cab, insulated/sound suppressed
      • Seat, operator, air suspension
      • Seatbelt, operator, three-points, retractable
      • Seat, trainer, air suspension
      • Seatbelt, trainer, two-points, retractable
      • Stairway and walkway access, 600 mm (23.6 in)
      • Steering wheel, multi tilt, padded, telescopic
      • Tinted glass
      • Window, operator, electric powered
      • Windshield wiper, intermittent control and washer
      • Cup holder
      • Mirrors, right and left
  • Power Train
    • C175-20 emits equivalent to Tier 2 emission standards:
      – Turbocharging (4)/Air-to-Air Aftercooler (ATAAC)
      – Air cleaner with precleaner (4)
      – Ground level engine shutdown
      – Ether starting aid (automatic)
      – Elevated low idle control
      – Crankcase protection
      – Multi-point oil pressure sensing
      – Automatic starter protection
    • Braking system:
      – Park brake integrated with gear selector
      – Brake release motor (towing)
      – Oil-cooled, multi-disc (front and rear) – service, retarding, parking, secondary
      – Automatic Retarder Control, adjustable
      – Engine overspeed protection
      – Extended life brake disc material
    • Transmission:
      – 7-speed, automatic powershift with electronic controls (ECPC)
      – Body-up shift inhibitor
      – Controlled throttle shifting
      – Directional shift management
      – Neutral coast inhibitor
      – Neutral start switch
      – Downshift/Reverse shift inhibitor
      – Individual clutch modulation
      – Body-up reverse neutralizer
      – Programmable top speed
      – Lock-up torque converter
    • Pre-lubrication/engine
    • Rear axle continuous lubrication/filtration
  • Other Standard Equipment
    • Traction Control System
    • Auto lubrication system
    • Aux “buddy” dumping quick connect
    • Aux steering quick connect (towing)
    • Driveline guard
    • Fast fill fuel system
    • Fuel filter with water separator
    • Ground level VIMS data port
    • Ground level battery lockout
    • Ground level transmission lockout
    • Ground level engine start lockout
    • Ground level engine shut-down
    • High-speed crankcase oil change
    • Reservoirs (3 separate):
      – Brake/Hoist, Steering/Fan, Transmission/Converter
    • Rock ejectors
    • Supplemental steering (automatic)
    • Tie-down eyes
    • Center hitch and tow points (front), tow pin (rear)
    • Vandalism protection locks
    • Vital Information Management System (VIMS):
      – Includes VIMS Payload Monitor with max payload and speed manager
    • Hydraulic filters, 1,000 hour
    • SOS℠ sample ports
    • Service points, ground level
    • Sight level gauges for hydraulic/engine oil
  • Antifreeze
    • Extended Life Coolant to –35° C (–30° F)

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