773 Off-Highway Truck
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 Trucks 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 Off-Highway Trucks can and will make a positive difference to both your business and people – all day, every day.
Specifications
Equipment
Product Brochures
Attachments
Units:
Engine
Engine Model
Cat® C27
Rated Engine Speed
2000 r/min
2000 r/min
Gross Power - SAE J1995
825 HP
615 kW
Net Power - SAE J1349
727 HP
542 kW
Net Power - 80/1269/EEC
727 HP
542 kW
Net Power - ISO 9249
727 HP
542 kW
Bore
5.4 in
137 mm
Stroke
6 in
152 mm
Displacement
1648 in³
27 l
Note (1)
Power rating applies at 2,000 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).
Net Torque
2874 ft-lb
3896 N·m
Peak Torque - Speed
1300 r/min
1300 r/min
Note (3)
No engine derating required up to 3810 m (12,500 ft) for Tier 2 Equivalent.
Engine Power - ISO 14396
813 HP
607 kW
Weights - Approximate
Maximum Gross Vehicle Weight
226503 lb
102740 kg
Operating Specifications
Nominal Payload Class (100%)
61.7 ton (US)
56 t
Top Speed - Loaded
42 mile/h
67.6 km/h
Note (2)
* Refer to the Caterpillar 10/10/20 Payload Policy for maximum gross machine weight limitations.
Body Capacity - SAE 2:1
46.75 yd³
35.75 m³
Target Payload (100%)
61.7 ton (US)
56 t
Note (1)
Capacity with Dual Slope body – no liner.
Maximum Allowable Payload (120%)*
74 ton (US)
67.1 t
Maximum Working Payload (110%)
67.8 ton (US)
61.5 t
Transmission
Forward - 1
6.7 mile/h
10.8 km/h
Forward - 2
9.4 mile/h
15.1 km/h
Forward - 3
12.7 mile/h
20.4 km/h
Forward - 4
17 mile/h
27.4 km/h
Forward - 5
23 mile/h
37 km/h
Forward - 6
31.1 mile/h
50.1 km/h
Forward - 7
42 mile/h
67.6 km/h
Reverse
8.8 mile/h
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
257 in²
655 cm²
Brake Surface - Rear
9497 in²
61269 cm²
Brake Standards
ISO 3450:2011
Body Hoists
Pump Flow - High Idle
118 gal/min
448 l/min
Relief Valve Setting - Raise
2502 psi
17250 kPa
Relief Valve Setting - Lower
500 psi
3450 kPa
Body Raise Time - High Idle
9.5 s
9.5 s
Body Lower Time - Float
13 s
13 s
Body Power Down - High Idle
13 s
13 s
Capacity - Dual Slope - 100% Fill Factor
Struck
35.13 yd³
26.86 m³
Note (1)
Contact your local Cat dealer for body recommendation.
Heaped (SAE 2:1)*
46.76 yd³
35.75 m³
Note (2)
* ISO 6483:1980.
Capacity - Flat Floor - 100% Fill Factor
Struck
34.33 yd³
26.25 m³
Heaped (SAE 2:1)*
46.41 yd³
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 %
53 %
Front Axle - Loaded
35 %
35 %
Rear Axle - Empty
47 %
47 %
Rear Axle - Loaded
65 %
65 %
Suspension
Rear axle - Oscillation
8.1 °
8.1 °
Empty Loaded Cylinder Stroke Front
9.2 in
234 mm
Empty Loaded Cylinder Stroke Rear
5.8 in
149 mm
Service Refill Capacities
Fuel Tank
210 gal (US)
795 l
Cooling System
45 gal (US)
171 l
Differential - Final Drives
38 gal (US)
145 l
Steering Tank
9.5 gal (US)
36 l
Steering System - Including Tank
14 gal (US)
54 l
Brake/Hoist Hydraulic Tank
46.5 gal (US)
176 l
Crankcase
24 gal (US)
90 l
Brake Hoist System
85 gal (US)
322 l
Torque Converter - Transmission System - LRC
16 gal (US)
61 l
Tires
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.
Note (2)
Caterpillar recommends the customer evaluate all job conditions and consult the tire manufacturer for proper tire selection.
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 (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 (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 (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
77.1 ft
23.5 m
Steering Standards
ISO 5010:2007
Steer Angle
31 °
31 °
Turning Circle - Clearance Diameter
85.6 ft
26.1 m
Standard Equipment
NOTE
POWER TRAIN
SUSPENSION SYSTEMS
ELECTRICAL
TECHNOLOGY PRODUCTS
OPERATOR ENVIRONMENT
GUARDS
FLUIDS
OTHER STANDARD EQUIPMENT
