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777 (07) Off-Highway Truck

The Cat® 777 is engineered to be the most efficient 100-ton mechanical truck in the industry. With your input, we have designed and manufactured a truck that is reliable, durable, and economical, offering comfort, confidence, and control to its operators. With
an improved access system designed to minimize slips and falls, this truck provides firm footing and stability in less than perfect conditions.

Target Payload (100%)
101.1 ton (US)
Engine Model
Cat® C32B
Top Speed - Loaded
40.9 mile/h
Gross Power - SAE J1995
1025 HP

Operating Specifications

Target Payload (100%)
101.1ton (US)
Top Speed - Loaded
40.9mile/h
Maximum Working Payload (110%)
111.2ton (US)
Maximum Allowable Payload (120%)*
121.3ton (US)
Body Capacity - SAE 2:1
83.1yd³
Note (1)
Capacity with flat floor X Body with liner.
Note (2)
* Refer to the Caterpillar 10/10/20 Payload Policy for maximum gross vehicle weight limitations.

Engine

Engine Model
Cat® C32B
Gross Power - SAE J1995
1025HP
Net Power - SAE J1349
916HP
Bore
5.7in
Stroke
6.4in
Displacement
1959in³
Peak Torque - Speed
1200r/min
Engine Speed
1800r/min
Cylinders
12
Engine Power - ISO 14396
1008HP
Net Torque Rise
Tier 4: 39%. Tier 2: 37%
Note (1)
Power rating applies at 1,800 rpm when tested under the specified condition for the specified standard.
Note (2)
Ratings based on SAE J1995 standard air conditions of 25° C (77° F) and 100 kPa (29.61 Hg) barometer. Power based on fuel having API gravity of 35 at 16° C (60° F) and an LHV of 42 780 kJ/kg (18,390 BTU/lb) when engine used at 30° C (86° F).
Note (3)
Available as Tier 4 Final/Stage V equivalent, Tier 3/Stage IIIA equivalent, or Tier 2/Stage II equivalent emission standards.
Note (4)
Meets China Nonroad Stage III emission standards equivalent to U.S. EPA Tier 3 or U.S. EPA Tier 2.

Capacity - X Body - 100% Fill Factor

Struck
56.3yd³
Heaped (SAE 2:1)*
83.8yd³
Note (1)
Contact your local Cat dealer for body recommendation.
Note (2)
*ISO 6483:1980

Capacity - Coal Bodies - 100% Fill Factor

SAE 2:1 - For use with material densities of 1160 kg/m3 (1,950 lb/yd3)
116.8yd³
SAE 2:1 - For use with material densities of 1040-1160 kg/m3 (1,750-1,950 lb/yd3)
139yd³
SAE 2:1 - For use with material densities of 950-1040 kg/m3 (1,600-1,750 lb/yd3)
144yd³
SAE 2:1 - For use with material densities less than 950 kg/m3 (1,600 lb/yd3)
164.6yd³

Capacity - Dual Slope - 100% Fill Factor

Struck
54.8yd³
Heaped (SAE 2:1)*
78.6yd³
Note (1)
Contact your local Cat dealer for body recommendation.
Note (2)
*ISO 6483:1980

Weight Distributions - Approximate

Front Axle - Empty
42%
Front Axle - Loaded
33%
Rear Axle - Empty
58%
Rear Axle - Loaded
67%

Transmission

Forward - 1
6.6mile/h
Forward - 2
9.1mile/h
Forward - 3
11.9mile/h
Forward - 4
16.6mile/h
Forward - 5
22.5mile/h
Forward - 6
30.2mile/h
Forward - 7
40.9mile/h
Reverse
7.5mile/h
Note
Maximum travel speeds with standard 27.00R49 (E4) tires.

Final Drives

Differential Ratio
2.736:1
Planetary Ratio
7.0:1
Total Reduction Ratio
19.1576:1

Brakes

Brake Standards
ISO 3450-2011
Brake Surface Area - Front
6331in²
Brake Surface Area - Rear
15828in²

Service Refill Capacities

Fuel Tank (1)
300gal (US)
Fuel Tank (2)
350gal (US)
Cooling System
61gal (US)
Crankcase
28.7gal (US)
Differentials
59.9gal (US)
Final Drive - Each
20gal (US)
Steering System - Including Tank
14.1gal (US)
Brake Hoist System
117gal (US)
Torque Converter - Transmission System
36.5gal (US)

Body Hoists

Pump Flow - High Idle
120.9gal/min
Relief Valve Setting - Raise
2750psi
Relief Valve Setting - Lower
500psi
Body Raise Time - High Idle
15s
Body Lower Time - Float
13s
Body Lower Time - High Idle
13s

Suspension

Rear axle - Oscillation
5.4°
Empty Loaded Cylinder Stroke Front
2.9in
Empty Loaded Cylinder Stroke Rear
2.5in

Tires

Standard Tire
27.00R49 (E4)
Note (1)
Productive capabilities of the 777 truck are such that, under certain job conditions, TKPH (TMPH) capabilities of standard or optional tires could be exceeded and, therefore, limit production.
Note (2)
Caterpillar recommends the customer evaluate all job conditions and consult the tire manufacturer for proper tire selection.

Weights - Approximate

Target Gross Machine Weight
363000lb

ROPS

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

Steering

Turning Diameter - Front
83ft
Steering Standards
ISO 5010:2007
Steer Angle
30.5°
Turning Circle - Clearance Diameter
93ft

Sound

Sound Standards (1)
The operator Equivalent Sound Pressure Level (Leq) is 73 dB(A) when SAE J1166 FEB2008 is used to measure the value for an enclosed cab. This is a work cycle sound exposure level. The cab was properly installed and maintained. The test was conducted with t
Sound Standards (2)
The exterior sound pressure level for the standard machine measured at a distance of 15 m (49 ft) according to the test procedures specified in SAE J88:2008, mid‑gear moving operation is 83 dB(A).
Sound Standards (3)
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.

Standard Equipment:

  • Note
    • Standard and optional equipment may vary. Consult your Cat dealer for details.
  • Power Train
    • Autostall
    • Engine idle shutdown
    • Air-To-Air Aftercooler (ATAAC)
    • Air cleaner with precleaner (2)
    • Automatic cold mode idle control
    • Electric priming pump
    • Electric cold weather start (two starters and four batteries)
    • Ether starting aid
    • Exhaust, muffler
    • Fuel filter/water separator
    • Turbocharger (2)
    • Braking system:
      – Extended Life Brakes
      – Brake wear indicator
      – Automatic Retarder Control (ARC) (utilizes oil-cooled, multiple disc brakes)
      – Brake release motor (towing)
      – Manual retarder (utilizes oil-cooled, multiple disc brakes)
      – Oil-cooled, multiple disc (front/rear)
      – Parking
      – Secondary
      – Service
    • Transmission
      – Auto neutral idle
      – APECS Software
      – ECPC
    • Part Throttle Shifting
      – 7-speed automatic powershift with Torque Shift Management Electronic Clutch Pressure Control
      – Body up-shift inhibitor
      – Directional shift management
      – Downshift inhibitor
      – Neutral start switch
      – Neutral coast inhibitor
      – Reverse shift inhibitor
      – Reverse neutralizer during dumping
      – Programmable top gear selection
  • Suspension Systems
    • Suspension, rear
  • Electrical
    • Alarm, backup
    • Alternator, 115 ampere
    • Auxiliary jump start receptacle
    • Batteries, maintenance-free, 12V (4), 200 amp-hour
    • Electrical system, 25 AMP, 24V to 12V converter
    • Lighting system (LED)
      – Backup light
      – Directional signals/hazard warning, (front and rear)
      – Headlights with dimmer
      – Payload, indicator lights
      – Operator access courtesy lights
      – Side profile lights
      – Stop/tail lights
      – Service lights
  • Operator Environment
    • Air conditioning
    • Ashtray and cigarette lighter
    • Coat hook
    • Cup holders (4)
    • Diagnostic connection port, 24V
    • Entertainment Radio Ready
      – 5 amp converter
      – Speakers
      – Antenna
      – Wiring harness
    • Gauges/indicators
      – Brake oil temperature gauge
      – Coolant temperature gauge
      – Hour meter
      – Tachometer
      – Engine overspeed indicator
      – Fuel level
      – Speedometer with odometer
      – Transmission gear indicator
    • Heater/defroster (11 070 kCal/43,930 BTU)
    • Auto temp control
    • Hoist lever
    • Horn, electric
    • Light – dome
    • Light – courtesy
    • Load counter, automatic
    • Touchscreen Advisor display
    • VIMS
    • Foot rest
    • Mirrors – heated
    • Power port, 24V and 12V (2)
    • ROPS cab, insulated/sound suppressed
    • Cat Comfort Series III
      – Full air suspension
      – Retractable 3-point seat belt with shoulder harness
    • Steering wheel, padded, tilt and telescopic
    • Storage compartment
    • Sun visor
    • Throttle lock
    • Window, right side, hinged access/egress
    • Electric left side window control
    • Windshield wiper (intermittent) and washer
    • Tinted, laminated glass
  • Technology Products
    • Product Link Ready (Level 1)
    • Adaptive economy mode
  • Guards
    • Engine crankcase
    • Driveline
    • Fan and A/C
  • Fluids
    • Extended Life Coolant to –35° C (–30° F)
  • Other Standard Equipment
    • Clustered grease fittings
    • Body mounting group
    • Body safety pin (secures body in up position)
    • Body down indicator
    • CD-ROM parts book
    • Center-mounted rims
    • Fuel tank (1136 L/300 gal)
    • Ground level battery disconnect
    • Ground level engine shutdown
    • Ground level grease fittings
    • Reservoirs (separate)
      – Brake/hoist
      – Steering
      – Transmission/torque converter
    • Rims 19.5 × 49
    • Rock ejectors
    • Supplemental steering (automatic)
    • Tie down eyes
    • Tow hooks (front)/Tow pin (rear)
    • Vandalism protection locks
    • Wiggins fast fuel
    • Attachment Zone

Optional Equipment:

  • Note
    • Standard and optional equipment may vary. Consult your Cat dealer for details.
  • Optional Equipment
    • Body heat
    • Body liners
    • Body sideboards
    • Cab precleaner
    • Cat Engine Brake
    • Cold weather packages
    • Fluid fill service center
    • HID lights
    • Mirrors, convex
    • Spare rim
    • Visibility package (meets ISO 5006 requirements)
    • Wheel chocks
    • Work Area Vision System (WAVS)
  • Operator Environment
    • Fluid level monitoring
    • TPMS
  • Technology Products
    • TKPH/TMPH (Tons Kilometer Per Hour/Tons Mile Per Hour)
    • Object Detection (4 cameras, 4 radars)
  • Other Optional Equipment
    • Traction Control System (TCS)

Specifications

Standard/Optional Features