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789D Autonomous Water Truck
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789D Autonomous Water Truck
789D Autonomous Water Truck
Water Trucks
Longer description goes here
Engine Model
Cat® 3516C HD
Gross Power - SAE J1995:2014
2100 hp/1566 kW
Net Power - SAE J1349:2011
1969 hp/1468 kW
Emissions
Fuel Optimized or EPA Tier 2 equivalent.
Key Features
ENHANCED SITE SAFETY
INCREASED PRODUCTIVITY
CAT WATER DELIVERY SYSTEM
CAT® MINESTAR™ COMMAND
SUSTAINABLE OPERATIONS
TRACK AND REPORT
DEALER SUPPORT
Specifications
Metric
|
Imperial
Engine 
Engine Model
Cat® 3516C HD
Gross Power - SAE J1995:2014
2100 hp
1566 kW
Net Power - SAE J1349:2011
1969 hp
1468 kW
Emissions
Fuel Optimized or EPA Tier 2 equivalent.
Bore
6.7 in
215 mm
Stroke
4766 in³
78.1 l
Displacement
3573.6 in³
58.56 l
Note (1)
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 1,750 rpm.
Cat Water Delivery System (WDS)
Maximum water flow
1800 gal(US)/min
6814 L/min
Water per spray head (minimum)
35 gal(US)/min
132.5 L/min
Water per spray head (maximum)
600 gal(US)/min
2271 L/min
Spray head opening range (minimum)
0.04 in
1 mm
Spray head opening range (maximum)
0.75 in
19 mm
Maximum size debris flushed through spray head
0.75 in
19 mm
Spray system hydraulic tank capacity
7.25 gal (US)
27.5 l
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
Maximum water from cannon (idle)
600 gal(US)/min
2271 L/min
Maximum water from cannon (high idle)
1250 gal(US)/min
4732 L/min
Maximum cannon spray distance
200 ft
61 m
Type
Wet water pump/hydraulic motor coupling
Note
Selectable coverage: 0.2-0.8 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)
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 1,750 rpm.
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)
When the truck speed drops below 4.8 kph (3 mph), the system shuts off automatically to prevent overwatering, and then automatically re-starts as speed increases.
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. Cannon mode may only be operated manually. Not available for autonomous operation.
Tank Configurations
Water Tank Capacity
up to 165 000 L (43,588 gal)
Note
Selectable coverage: 0.2-0.8 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.
Machine Weight (with water tank full)
641,774 lb - 656,103 lb / 291 105 kg - 297 393 kg
Empty Machine Operating Weight (without water / with fuel)
308,619 lb - 314,619 lb / 139 988 kg - 142 700 kg
Water Tank - Max Empty Weight (no WDS)
80,000 lb - 86,000 lb / 36 288 kg - 39 000 kg
Note (1)
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 1,750 rpm.
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)
When the truck speed drops below 4.8 kph (3 mph), the system shuts off automatically to prevent overwatering, and then automatically re-starts as speed increases.
Operating Specifications
Note
Selectable coverage: 0.2-0.8 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 (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.
Weights - Approximate
Target Gross Machine Weight
715000 lb
324319 kg
Chassis Weight
228619 lb
103700 kg
Transmission
Forward - 1
7.8 mile/h
12.6 km/h
Forward - 2
10.6 mile/h
17.1 km/h
Forward - 3
14.4 mile/h
23.1 km/h
Forward - 4
19.4 mile/h
31.2 km/h
Forward - 5
26.3 mile/h
42.3 km/h
Forward - 6
35.5 mile/h
57.2 km/h
Reverse
7.3 mile/h
11.8 km/h
Note
Selectable coverage: 0.2-0.8 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.
Final Drives
Differential Ratio
2.35:1
Planetary Ratio
10.83:1
Total Reduction Ratio
25.46:1
Braking System
Brake Surface - Front
12662 in²
81693 cm²
Brake Surface - Rear
20862 in²
134590 cm²
Brake Standards
ISO 3450:2011
Body Hoists
Pump Flow - High Idle
193 gpm
731 L/min
Relief Valve Setting - Raise
2500 psi
17238 kPa
Body Raise Time - High Idle
18.9 s
18.9 s
Body Lower Time - Float
17.3 s
17.3 s
Body Lower Time - High Idle
15.6 s
15.6 s
Weight Distributions - Approximate
Front Axle - Empty
46 %
46 %
Front Axle - Loaded
33 %
33 %
Rear Axle - Empty
54 %
54 %
Rear Axle - Loaded
67 %
67 %
Suspension
Rear axle - Oscillation
5.6 °
5.6 °
Steering
Steering Standards
ISO 5010:2019
Steer Angle
36 °
36 °
Turning Diameter - Front
90.32 ft
27.53 m
Tires
Standard Tire
37.00-R57
Note (1)
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 1,750 rpm.
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.
Service Refill Capacities
Fuel Tank
550 gal (US)
2082 l
Cooling System
192 gal (US)
725 l
Crankcase
77 gal (US)
291 l
Differential - Final Drives
154 gal (US)
583 l
Steering System - Including Tank
50 gal (US)
189 l
Brake Hoist System
241 gal (US)
909 l
Cab
Air Conditioning
18390 Btu/lb
42780 Btu/kWh
Heater / Defroster
43930 Btu
11070 kJ/kg
ROPS Standards (1)
ROPS (Rollover Protective Structure) for cab offered by Caterpillar meets ISO 3471:2008 ROPS criteria and ISO 13459:2012 for trainer.
FOPS Standards
FOPS (Falling Objects Protective Structure) meets ISO 3449:2005 Level II FOPS criteria and ISO 13459:2012 Level II for trainer.
Note (1)
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 1,750 rpm.
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)
When the truck speed drops below 4.8 kph (3 mph), the system shuts off automatically to prevent overwatering, and then automatically re-starts as speed increases.
Equipment
Standard Equipment
Optional Equipment
Engine Model
Cat® 3516C HD
Gross Power - SAE J1995:2014
2100 hp/1566 kW