Caterpillar is pleased to introduce to you the 773 Off-Highway Truck. You may be asking how, after 40 years of building trucks, Caterpillar has improved this product’s ability to support your business.
The 773 Off-Highway Truck has been designed and manufactured using the latest quality control technologies – virtual and hands on. This product has over 30,000 hours of proven performance in the hands of customers prior to production, all of which ensures the truck delivered to your yard is ready to work, reliably and dependably.
In addition to quality, Cat 773 trucks will lower your costs with seven different ways to help you conserve fuel. We offer you two customizable fuel economy modes that will let you choose your level of savings. With Cat 773 trucks in your haul fleet, you can be more productive, spend less time on maintenance, and support the environment with new levels of eco performance. Your crew will appreciate all the new comfort and conveniences in our updated cab. Simply put, the Cat 773 trucks can and will make a positive difference to both your business and people – all day, every day.
Engine
| Engine Model |
Cat® C27 |
| Rated Engine Speed |
2000 r/min |
| Gross Power - SAE J1995 |
775 HP |
| Net Power - SAE J1349 |
733 HP |
| Net Power - ISO 9249 |
741 HP |
| Net Power - 80/1269/EEC |
741 HP |
| Bore |
137 mm |
| Stroke |
152 mm |
| Displacement |
27 l |
| Net Torque |
3646 N·m |
| Note (3) |
No engine derating required up to 3810 m (12,500 ft) for Tier 2 Equivalent. |
| 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). |
| Peak Torque - Speed |
1300 r/min |
| Engine Power - ISO 14396 |
569 kW |
| Note (1) |
Power rating applies at 2,000 rpm when tested under the specified condition for the specified standard. |
Weights - Approximate
| Maximum Gross Vehicle Weight |
102740 kg |
Operating Specifications
| Nominal Payload Class (100%) |
56 t |
| Top Speed - Loaded |
67.6 km/h |
| Maximum Allowable Payload (120%)* |
67.1 t |
| Body Capacity - SAE 2:1 |
35.75 m³ |
| Note (1) |
Capacity with Dual Slope body – no liner. |
| Maximum Working Payload (110%) |
61.5 t |
| Note (2) |
* Refer to the Caterpillar 10/10/20 Payload Policy for maximum gross machine weight limitations. |
| Target Payload (100%) |
56 t |
Transmission
| Forward - 1 |
10.8 km/h |
| Forward - 2 |
15.1 km/h |
| Forward - 3 |
20.4 km/h |
| Forward - 4 |
27.4 km/h |
| Forward - 5 |
37 km/h |
| Forward - 6 |
50.1 km/h |
| Forward - 7 |
67.6 km/h |
| Reverse |
14.1 km/h |
| Note |
Maximum travel speeds with standard 24.00R35 (E4) tires. |
Final Drives
| Differential Ratio |
3.64:1 |
| Planetary Ratio |
4.80:1 |
| Total Reduction Ratio |
17.49:1 |
Brakes
| Brake Surface - Front |
655 cm² |
| Brake Surface - Rear |
61269 cm² |
| Brake Standards |
ISO 3450:2011 |
Body Hoists
| Pump Flow - High Idle |
448 l/min |
| Relief Valve Setting - Raise |
17250 kPa |
| Relief Valve Setting - Lower |
3450 kPa |
| Body Raise Time - High Idle |
9.5 s |
| Body Lower Time - Float |
13 s |
| Body Power Down - High Idle |
13 s |
Capacity - Dual Slope - 100% Fill Factor
| Struck |
26.86 m³ |
| Note (1) |
Contact your local Cat dealer for body recommendation. |
| Heaped (SAE 2:1)* |
35.75 m³ |
| Note (2) |
* ISO 6483:1980. |
Capacity - Flat Floor - 100% Fill Factor
| Struck |
26.25 m³ |
| Heaped (SAE 2:1)* |
35.49 m³ |
| Note (2) |
* ISO 6483:1980. |
| Note (1) |
Contact your local Cat dealer for body recommendation. |
Weight Distributions - Approximate
| Front Axle - Empty |
53 % |
| Front Axle - Loaded |
35 % |
| Rear Axle - Empty |
47 % |
| Rear Axle - Loaded |
65 % |
Suspension
| Rear axle - Oscillation |
8.1 ° |
| Empty Loaded Cylinder Stroke Front |
234 mm |
| Empty Loaded Cylinder Stroke Rear |
149 mm |
Service Refill Capacities
| Fuel Tank |
795 l |
| Cooling System |
171 l |
| Differential - Final Drives |
145 l |
| Steering Tank |
36 l |
| Steering System - Including Tank |
54 l |
| Torque Converter - Transmission System - LRC |
61 l |
| Brake/Hoist Hydraulic Tank |
176 l |
| Brake Hoist System |
322 l |
| Crankcase |
90 l |
Tires
| Note (2) |
Caterpillar recommends the customer evaluate all job conditions and consult the tire manufacturer for proper tire selection. |
| Note (1) |
Productive capabilities of the 773G truck are such that, under certain job conditions, TKPH (TMPH) capabilities of standard or optional tires could be exceeded and, therefore, limit production. |
| Standard Tire |
24.00R35 (E4) |
ROPS
| FOPS Standards |
Falling Object Protective Structure (FOPS) meets ISO 3449:2005 Level II FOPS criteria. |
| ROPS Standards |
Rollover Protective Structure (ROPS) for cab offered by Caterpillar meets ISO 3471:2008 ROPS criteria. |
Sound
| 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. |
| 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 86 dB(A). |
| Sound Standards (1) |
The operator Equivalent Sound Pressure Level (Leq) is 76 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 the cab doors and the cab windows closed. |
Steering
| Turning Diameter - Front |
23.5 m |
| Steering Standards |
SAE J1511 FEB94 ISO 5010:1992 |
| Steer Angle |
31 ° |
| Turning Circle - Clearance Diameter |
26.1 m |
30 Mins