Net Power advertised is the power available at the flywheel when
the engine is equipped with fan, air cleaner, muffler, and alternator
with engine speed at 1,800 rpm.
Note (2)
Power rating applies at 1,800 rpm when tested under the specified condition for the specified standard.
Note (3)
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 (4)
No engine derating required up to 2286 m (7,500 ft) for HRC and 4572 m (15,000 ft) for LRC machines.
Note (5)
Available as Tier 4 Final/Stage V equivalent or Tier 2/Stage II equivalent emission standards.
Cat Water Delivery System (WDS)
+
Maximum water flow
1800 gal(US)/min
Water per spray head (minimum)
35 gal(US)/min
Water per spray head (maximum)
600 gal(US)/min
Spray head opening range (minimum)
0.04 in
Spray head opening range (maximum)
0.75 in
Maximum size debris flushed through spray head
0.75 in
Spray system hydraulic tank capacity
7.25 gal (US)
Maximum number of rear spray heads
5
Minimum number of rear spray heads (recommended 3)
2
Minimum number of front/side spray heads
2
Maximum number of front/side spray heads
0
Maximum water from cannon (idle)
600 gal(US)/min
Maximum water from cannon (high idle)
1650 gal(US)/min
Maximum cannon spray distance
200 ft
Type
Wet water pump/hydraulic motor coupling
Note
Operator selectable coverage: 0.1 - 0.8 L/m² (4 kph - 40 kph) / 0.05 - 0.2 gal/ft² (3 mph - 25 mph). Coverage rates above 0.6 L/m² may not be available at higher speeds depending on head count and configuration.
Note (1)
Spray head opening is automatically controlled by the system to achieve Auto Mode Coverage or manual mode flow rate.
Note (2)
The Auto Mode setting controls water coverage and automatically adjusts to the number of spray heads being used — independent of ground speed. This is an exclusive feature designed into the Cat WDS software to help water more efficiently. Water flow is continually adjusted during operation to conserve water and achieve desired coverage and flow rate.
Note (3)
Alternatively, manual mode allows the operator to set a water flow rate that is constant regardless of ground speed. This mode is not recommended for daily operation and will reduce watering efficiency and may increase fuel usage.
Note (4)
Spray heads on competitive water distribution systems require tools and maintenance to change flow and spray pattern. Caterpillar is the only company to have variable active spray heads to regulate water spray.
Note (5)
Cannon performance depends on nozzle orifice and pipe size.
Tank Configurations
+
Water Tank Capacity
up to 75 700 L (20,000 gal)
Note
Multiple tank configurations are offered based on customer preference and regional locations. Water Tank Capacity Range: 75 400 - 75 700 L (19,900 - 20,000 gal)
Machine Weight (with water tank full)
327,964 - 327,964 lb / 147 172 - 148 762 kg
Empty Machine Operating Weight (without water / with fuel)
160,307 - 162,323 lb / 72 714 - 73 629 kg
Water Tank - Max Empty Weight (no WDS)
42,983 - 44,092 lb / 19 497 - 20 000 kg
Note (1)
Hoist cylinder mounting on all tank offerings enhances serviceability.
Note (2)
Number of spray heads can be customized based on customer needs and preferred watering techniques. Option for 3 - 5 spray heads mounted on the back of the water tank. Additional option for spray heads on each side of the water tank.
Note (3)
Water cannon arrangement typically mounts to the front of the water tank.
Operating Specifications
+
Top Speed - Loaded
41.7 mile/h
Note
Water Tank Capacity Range: 69 700 - 75 700 L (18,400 - 20,000 gal)
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
Braking System
+
Brake Surface - Front
6331 in²
Brake Surface - Rear
15828 in²
Brake Standards
ISO 3450:2011
Body Hoists
+
Pump Flow - High Idle
6331 gpm
Relief Valve Setting - Raise
2750 psi
Relief Valve Setting - Lower
500 psi
Body Raise Time - High Idle
15 s
Body Lower Time - Float
13 s
Body Lower Time - High Idle
13 s
Weight Distributions - Approximate
+
Front Axle - Empty
46 %
Front Axle - Loaded
33 %
Rear Axle - Empty
54 %
Rear Axle - Loaded
67 %
Suspension
+
Empty Loaded Cylinder Stroke Front
2.9 in
Empty Loaded Cylinder Stroke Rear
2.5 in
Rear axle - Oscillation
5.4 °
Steering
+
Steering Standards
ISO 5010:2007
Steer Angle
30.5 °
Turning Diameter - Front
83 ft
Turning Circle - Clearance Diameter
93 ft
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.
Service Refill Capacities
+
Fuel Tank (1)
300 gal (US)
Fuel Tank (2)
350 gal (US)
Cooling System
63.4 gal (US)
Crankcase
28.7 gal (US)
Differentials
59.9 gal (US)
Final Drive - Each
20 gal (US)
Steering System - Including Tank
14.1 gal (US)
Brake Hoist System
85 gal (US)
Torque Converter - Transmission System
36.5 gal (US)
Cab
+
Air Conditioning
18390 Btu/lb
Heater / Defroster
43930 Btu
ROPS Standards (1)
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.
Note (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 the cab doors and the cab windows closed.
Note (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).
Note (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.
NOTE
Standard and optional equipment may vary. Consult your Cat dealer for details.
POWERTRAIN
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)
Tanks are offered by local 3rd party providers with customization based on water application and regional customer requirements. Tie offs, ladders, splash guards, fill chute, rock ejectors, cannon selection, and additional options are available. Cat dealer or local tank manufacturer installation. Contact your local Cat dealer or Caterpillar OEM Solutions for recommendations on local tank providers and available options.