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773G Off-Highway Truck
Nominal Payload Class (100%)
61 ton (US)
55.3 t
Engine Model
Cat® C27
Top Speed - Loaded
41.6 mile/h
66.9 km/h
SPECIFICATIONS
The G Series represents a new era for Cat’s Off-Highway Trucks and the 773G provides our customers with a quality operating environment that enhances productivity and provides significant savings in fuel consumption, too. Ergonomically designed with an operator’s comfort in mind, the 773G has an updated cab with new comforts as well as controls conveniently placed within reach of the operator’s hands. Built with a Cat C27 diesel engine, this 60-ton payload uses increased torque delivering 5% additional horsepower. An ideal pass match for the 773G Off-Highway Truck is Cat’s 988K Wheel Loader, 990K Wheel Loader, or the 390F Hydraulic Excavator. Simply put, the 773G will make a positive difference in haul performance all day, every day for today and tomorrow’s work.
Body Hoists
Pump Flow - High Idle
118 gal/min
448 l/min
Relief Valve Setting - Raise
2,502 psi
17,250 kPa
Relief Valve Setting - Lower
500 psi
3,450 kPa
Body Raise Time - High Idle
10 s
10 s
Body Lower Time - Float
14 s
14 s
Body Power Down - High Idle
14 s
14 s
Brakes
Brake Surface - Front
257 in²
655 cm²
Brake Surface - Rear
9,497 in²
61,269 cm²
Brake Standards
ISO 3450:2011
Capacity - Dual Slope - 100% Fill Factor
Struck
35.13 yd³
26.86 m³
Note (1)
Contact your local Cat dealer for body recommendation.
Note (2)
* ISO 6483:1980.
Heaped (SAE 2:1)*
46.76 yd³
35.75 m³
Capacity - Flat Floor - 100% Fill Factor
Struck
34.33 yd³
26.25 m³
Note (2)
* ISO 6483:1980.
Heaped (SAE 2:1)*
46.41 yd³
35.49 m³
Note (1)
Contact your local Cat dealer for body recommendation.
Engine
Engine Model
Cat® C27
Rated Engine Speed
1,800 r/min
1,800 r/min
Gross Power - SAE J1995
775 HP
578 kW
Net Power - SAE J1349
719 HP
536 kW
Net Power - 80/1269/EEC
762 HP
568 kW
Net Power - ISO 9249
762 HP
568 kW
Bore
5.4 in
137 mm
Stroke
6 in
152 mm
Displacement
1,648 in³
27 l
Note (1)
Power rating applies at 2,000 rpm when tested under the specified condition for the specified standard.
Peak Torque - Speed
1,200 r/min
1,200 r/min
Note (3)
No engine derating required up to 3048 m (10,000 ft) for Tier 4/Stage V.
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).
Engine Power - ISO 14396
764 HP
570 kW
Net Torque
3,148 ft-lb
4,269 N·m
Final Drives
Differential Ratio
3.64:1
Planetary Ratio
4.80:1
Total Reduction Ratio
17.49:1
Operating Specifications
Nominal Payload Class (100%)
61 ton (US)
55.3 t
Top Speed - Loaded
41.6 mile/h
66.9 km/h
Body Capacity - SAE 2:1
46.8 yd³
35.8 m³
Note (1)
Capacity with Dual Slope body – no liner.
Target Payload (100%)
61 ton (US)
55.3 t
Maximum Working Payload (110%)
67.1 ton (US)
60.8 t
Note (2)
* Refer to the Caterpillar 10/10/20 Payload Policy for maximum gross machine weight limitations.
Maximum Allowable Payload (120%)*
73.2 ton (US)
66.4 t
ROPS
ROPS Standards
Rollover Protective Structure (ROPS) for cab offered by Caterpillar meets ISO 3471:2008 ROPS criteria.
FOPS Standards
Falling Object Protective Structure (FOPS) meets ISO 3449:2005 Level II FOPS criteria.
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
Torque Converter - Transmission System - HRC
18 gal (US)
70 l
Brake Hoist System
85 gal (US)
322 l
Sound
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.
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.
Steering
Turning Diameter - Front
77.1 ft
23.5 m
Steering Standards
SAE J1511 FEB94 ISO 5010:1992
Steer Angle
31 °
31 °
Turning Circle - Clearance Diameter
85.6 ft
26.1 m
Suspension
Rear axle - Oscillation
8.1 °
8.1 °
Empty Loaded Cylinder Stroke Rear
5.8 in
149 mm
Empty Loaded Cylinder Stroke Front
9.2 in
234 mm
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)
Transmission
Forward - 1
6.6 mile/h
10.6 km/h
Forward - 2
9.3 mile/h
15 km/h
Forward - 3
12.6 mile/h
20.3 km/h
Forward - 4
16.8 mile/h
27 km/h
Forward - 5
22.8 mile/h
36.7 km/h
Forward - 6
30.7 mile/h
49.4 km/h
Forward - 7
41.6 mile/h
66.9 km/h
Reverse
8.7 mile/h
14 km/h
Note
Maximum travel speeds with standard 24.00R35 (E4) tires.
Weight Distributions - Approximate
Front Axle - Empty
53 %
53 %
Front Axle - Loaded
35 %
35 %
Rear Axle - Empty
47 %
47 %
Rear Axle - Loaded
65 %
65 %
Weights - Approximate
Maximum Gross Vehicle Weight
226,501 lb
102,739 kg
- NOTE
- Standard and optional equipment may vary. Consult your Cat dealer for details.
- POWER TRAIN
- Cat C27 Tier 4/Stage V compliant diesel engine:
– Air cleaner with precleaner (2)
– Air-To-Air Aftercooler (ATAAC)
– Electric start
– Engine idle shutdown
– Ether starting aid
– Exhaust muffler
– NGMR radiator
For Tier 4 regions only (U.S./Canada):
– Aftertreatment system- NOx Reduction System (NRS)
- Diesel Oxidation Catalyst (DOC)
– Demand fan
– MEUI-C fuel system - Braking system:
– Extended Life Brakes
– Automatic Retarder Control (ARC)
– Manual retarder (utilizes rear oil-cooled, multiple disc brakes)
– Brake release motor (towing)
– Dry disc brakes (front)
– Front brake disconnect switch (front)
– Oil-cooled multiple disc brakes (rear)
– Brake wear indicator (rear)
– Parking brake
– Secondary brake
– Service brake - Transmission:
– 7-speed automatic powershift with:- Electronic Clutch Pressure Control (ECPC)
- Advanced Productivity Electronic Control Strategy (APECS)
– Automatic neutral idle
– Autostall
– Second gear start
- Cat C27 Tier 4/Stage V compliant diesel engine:
- SUSPENSION SYSTEMS
- Suspension, front and rear
- ELECTRICAL
- Alarm backup
- Alternator, 120 Amp
- Autolube power supply ready
- Batteries, maintenance-free, 12V (2), 1,400 CCA combined
- Electrical system, 25 Amp, 24V to 12V converter
- Lighting system:
– Backup light (halogen)
– Directional signals/hazard warning (front and rear LED)
– Engine compartment light
– Headlights, (halogen) with dimmer
– Operator access courtesy lights
– Side profile lights
– Stop/tail lights (LED) - Service center containing:
– Battery jump start
– Breakers with spare fuses
– Lockout switch
– Ports, ET and VIMS
– Service lockout switch (power without engine start)
- TECHNOLOGY PRODUCTS
- Economy Modes, standard and adaptive
- Product Link, cellular or satellite
- Traction Control System (TCS)
- Truck Production Management System
- Vital Information Management System (VIMS)
- OPERATOR ENVIRONMENT
- Advisor display:
– Air cleaner service indicator
– Fluid level monitoring
– Fuel level monitoring
– Display languages (market-based) - Air conditioning/heat
- Automatic temperature control
- Ashtray and cigarette lighter
- Coat hook
- Cup holders (4)
- Diagnostic connection port, 24V
- Entertainment radio ready:
– 5 amp converter
– Speakers
– Antenna
– Wiring harness - Foot rest
- Gauges/indicators:
– Brake oil temperature gauge
– Coolant temperature gauge
– Engine overspeed indicator
– Fuel level
– Hour meter
– Speedometer with odometer
– Tachometer
– Transmission gear indicator - Hoist lever
- Horn
- Light – courtesy
- Light – dome
- Mirrors, non-heated
- Power port, 24V and 12V (2)
- Rollover Protection (ROPS)/Falling Object Protection (FOPS)
- Seat, Cat Comfort Series III:
– Full air suspension
– Retractable 3-point seat belt with shoulder harness - Seat, training with lap belt
- Steering wheel, padded, tilt and telescopic
- Storage compartment
- Sun visor
- Throttle lock
- Window, hinged, right side (emergency exit)
- Window, powered, left side
- Windshield wiper intermittent and washer
- Advisor display:
- GUARDS
- Driveline
- Engine crankcase
- Fan
- FLUIDS
- Antifreeze
- Extended life coolant to –34° C (–30° F)
- Grouped ground-level filters
- OTHER STANDARD EQUIPMENT
- Body down indicator
- Body safety pin (secures body in up position)
- Center-mounted rims
- Fuel tank, 795 L (210 gal)
- Ground level battery disconnect
- Ground level engine shutdown
- Ground level grease fittings
- Operator Maintenance Manual (OMM)
- Rims 17 × 35
- Rock ejectors
- Secondary steering (electric)
- Tie down eyes
- Tow hooks (front)/tow pin (rear)
- Vandalism protection locks
- NOTE
- Standard and optional equipment may vary. Consult your Cat dealer for details.
- OPTIONAL EQUIPMENT
- Body heat
- Body liner
- Body sideboards
- Cab precleaner
- Cat Engine Brake
- Clustered grease fittings
- Cold weather packages
- Fluid fill service center
- HID lights
- Mirrors, convex
- Mirrors, heated
- Spare rim
- Visibility package (meets ISO 5006 requirements)
- Wheel chocks
- Work Area Vision System (WAVS)
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