The Cat 789D Autonomous Water Truck | Cat

Engine

Engine Model	Cat® 3516C HD 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. 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. 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 5
Minimum number of rear spray heads (recommended 3)	2 2
Minimum number of front/side spray heads	2 2
Maximum number of front/side spray heads	0 0
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 Wet water pump/hydraulic motor coupling
Note	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. 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. 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. 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. 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. 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. 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 155 000 L (41,000 gal) up to 155 000 L (41,000 gal)
Note	Water Tank Capacity Range: 151 416 L - 155 000 L (40,000 gal - 41,000 gal) Water Tank Capacity Range: 151 416 L - 155 000 L (40,000 gal - 41,000 gal)
Machine Weight (with water tank full)	641,774 lb - 656,103 lb / 291 105 kg - 297 393 kg 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 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 80,000 lb - 86,000 lb / 36 288 kg - 39 000 kg
Note (1)	Please contact your Cat dealer, Mining Tech Rep or the Mining Technology Enable Solutions team (MTES) for requirements on the autonomous water truck. They will also be able to provide a list of the approved water tank manufacturers for the 789D autonomous water truck configuration. Please contact your Cat dealer, Mining Tech Rep or the Mining Technology Enable Solutions team (MTES) for requirements on the autonomous water truck. They will also be able to provide a list of the approved water tank manufacturers for the 789D autonomous water truck configuration.
Note (2)	Hoist cylinder mounting on all tank offerings enhances serviceability. Hoist cylinder mounting on all tank offerings enhances serviceability.

Operating Specifications

Note	Water Tank Capacity Range: 151 416 L - 155 000 L (40,000 gal - 41,000 gal) Water Tank Capacity Range: 151 416 L - 155 000 L (40,000 gal - 41,000 gal)
Note (2)	Operator selectable coverage: 0.2-0.8 L/m² (4 kph - 40 kph) / 0.5-0.2 gal/ft² (3 mph - 25 mph) Operator selectable coverage: 0.2-0.8 L/m² (4 kph - 40 kph) / 0.5-0.2 gal/ft² (3 mph - 25 mph)

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	Maximum travel speeds with standard 37.00-R57 tires. Maximum travel speeds with standard 37.00-R57 tires.

Final Drives

Differential Ratio	2.35:1 2.35:1
Planetary Ratio	10.83:1 10.83:1
Total Reduction Ratio	25.46:1 25.46:1

Braking System

Brake Surface - Front	12662 in² 81693 cm²
Brake Surface - Rear	20862 in² 134590 cm²
Brake Standards	ISO 3450:2011 ISO 3450:2011

Body Hoists

Pump Flow - High Idle	193 gal/min 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 ISO 5010:2019
Steer Angle	36 ° 36 °
Turning Diameter - Front	90.32 ft 27.53 m

Tires

Standard Tire	37.00-R57 37.00-R57
Note (1)	Optional tire: 40.00-R57 Optional tire: 40.00-R57
Note (2)	Caterpillar recommends the customer evaluate all job conditions and consult the tire manufacturer for proper tire selection. Caterpillar recommends the customer evaluate all job conditions and consult the tire manufacturer for proper tire selection.

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. 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. FOPS (Falling Objects Protective Structure) meets ISO 3449:2005 Level II FOPS criteria and ISO 13459:2012 Level II for trainer.
Note (1)	The operator sound exposure Leq (equivalent sound pressure level) measured according to work cycle procedures specified in ANSI/SAE J1166 MAY90 is 80 dB(A) for cab offered by Caterpillar, when properly installed, maintained and tested with doors and windows closed. The operator sound exposure Leq (equivalent sound pressure level) measured according to work cycle procedures specified in ANSI/SAE J1166 MAY90 is 80 dB(A) for cab offered by Caterpillar, when properly installed, maintained and tested with doors and windows closed.
Note (2)	The exterior sound power level for the standard machine is tested using ISO 6393:2008 and ISO 6395:2008 procedures is 123 dB(A). The exterior sound power level for the standard machine is tested using ISO 6393:2008 and ISO 6395:2008 procedures is 123 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. 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.

Water Trucks 789D Autonomous Water Truck

Overview

Introducing the Cat® 789D Autonomous Water Truck

Benefits

Enhance Safety and Productivity at Your Mine Site

Autonomous Water Delivery with Cat® MineStar™ Command

Reduces Environmental Impact

Features At A Glance

BOOSTS SAFETY

IMPROVES WATERING OPERATIONS

GAIN EFFICENCY WITH A PROVEN WATER DELIVERY SYSTEM

AUTONOMOUS WATER DELIVERY WITH CAT MINESTAR COMMAND

REDUCES ENVIRONMENTAL IMPACT

MONITOR YOUR WATER OPERATIONS

BACKED BY THE ONE YOU TRUST

Product Specifications for 789D Autonomous Water Truck

Engine

Cat Water Delivery System (WDS)

Tank Configurations

Operating Specifications

Weights - Approximate

Transmission

Final Drives

Braking System

Body Hoists

Weight Distributions - Approximate

Suspension

Steering

Tires

Service Refill Capacities

Cab

789D Autonomous Water Truck Standard Equipment

NOTE

ELECTRICAL

SUSPENSION SYSTEMS

OPERATOR ENVIRONMENT

CAT TECHNOLOGY PRODUCTS

POWERTRAIN

GUARDS

FLUIDS

OTHER STANDARD EQUIPMENT

CAT WATER DELIVERY SYSTEM (WDS)

789D Autonomous Water Truck Optional Equipment

NOTE

OPERATOR ENVIRONMENT

COLD WEATHER

TIRES AND RIMS

INFORMATION MANAGEMENT

SERVICE CENTER

MISCELLANEOUS

POWERTRAIN

CAT TECHNOLOGY PRODUCTS

Product Specifications for 789D Autonomous Water Truck

Engine

Cat Water Delivery System (WDS)

Tank Configurations

Operating Specifications

Weights - Approximate

Transmission

Final Drives

Braking System

Body Hoists

Weight Distributions - Approximate

Suspension

Steering

Tires

Service Refill Capacities

Cab

789D Autonomous Water Truck Standard Equipment

NOTE

ELECTRICAL

SUSPENSION SYSTEMS

OPERATOR ENVIRONMENT

CAT TECHNOLOGY PRODUCTS

POWERTRAIN

GUARDS

FLUIDS

OTHER STANDARD EQUIPMENT

CAT WATER DELIVERY SYSTEM (WDS)

789D Autonomous Water Truck Optional Equipment

Product Brochures and More Are Ready to Download!