The Cat 785D Water Solutions Truck | Cat

Engine

Engine Model	Cat® 3512C HD Cat® 3512C HD
Gross Power - SAE J1995:2014	1450 hp 1082 kW
Net Power - SAE J1349:2011	1348 hp 1005 kW
Emissions	Fuel Optimized Fuel Optimized
Bore	6.7 in 170 mm
Stroke	8.4 in 215 mm
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 1,800 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 1,800 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 2270 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)	1650 gal(US)/min 6246 l/min
Maximum cannon spray distance	200 ft 61 m
Type	Wet water pump/hydraulic motor coupling 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. 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. 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)	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. 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. 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 performance depends on nozzle orifice and pipe size.

Tank Configurations

Water Tank Capacity	up to 121 133 L (32,000 gal) up to 121 133 L (32,000 gal)
Note	Multiple tank configurations are offered based on customer preference and regional locations. Water Tank Capacity Range: 110 000 - 121 133 L (29,059 - 32,000 gal) Multiple tank configurations are offered based on customer preference and regional locations. Water Tank Capacity Range: 110 000 - 121 133 L (29,059 - 32,000 gal)
Machine Weight (with water tank full)	480,655 lb - 520,237 lb / 218 022 kg - 235 976 kg 480,655 lb - 520,237 lb / 218 022 kg - 235 976 kg
Empty Machine Operating Weight (without water / with fuel)	241,647 lb - 251,098 lb / 109 610 kg - 113 896 kg 241,647 lb - 251,098 lb / 109 610 kg - 113 896 kg
Water Tank - Max Empty Weight (no WDS)	57,320 lb - 66,769 lb / 26 000 kg - 30 286 kg 57,320 lb - 66,769 lb / 26 000 kg - 30 286 kg
Note (1)	Cat branded tanks include additional features and options commonly selected by customers in the industry. Splash guards, fill chute, and rock ejectors are standard. Cat branded tanks include additional features and options commonly selected by customers in the industry. Splash guards, fill chute, and rock ejectors are standard.
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: 110 000 - 121 133 L (29,059 - 32,000 gal) Water Tank Capacity Range: 110 000 - 121 133 L (29,059 - 32,000 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	550000 lb 249476 kg
Chassis Weight	180827 lb 82022 kg

Transmission

Forward - 1	7.5 mile/h 12.1 km/h
Forward - 2	10.2 mile/h 16.3 km/h
Forward - 3	13.8 mile/h 22.2 km/h
Forward - 4	18.6 mile/h 29.9 km/h
Forward - 5	25.2 mile/h 40.6 km/h
Forward - 6	34 mile/h 54.8 km/h
Reverse	6.8 mile/h 11 km/h
Note	Maximum travel speeds with standard 33.00-R51 tires. Maximum travel speeds with standard 33.00-R51 tires.

Final Drives

Differential Ratio	2.10:1 2.10:1
Planetary Ratio	10.83:1 10.83:1
Total Reduction Ratio	22.75:1 22.75:1

Braking System

Brake Surface - Front	9497 in² 61270 cm²
Brake Surface - Rear	13908 in² 89729 cm²
Brake Standards	ISO 3450:2011 ISO 3450:2011

Body Hoists

Pump Flow - High Idle	198 gal/min 750 l/min
Relief Valve Setting - Raise	2500 psi 17238 kPa
Relief Valve Setting - Lower	500 psi 3450 kPa
Body Raise Time - High Idle	15.2 s 15.2 s
Body Lower Time - Float	16.2 s 16.2 s
Body Lower Time - High Idle	15.9 s 15.9 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 ° 5 °

Steering

Steering Standards	ISO 5010:2007 ISO 5010:2007
Steer Angle	36 ° 36 °
Turning Diameter - Front	97.7 ft 29.8 m

Tires

Standard Tire	33.00-R51 (E3 & E4) 33.00-R51 (E3 & E4)
Note (1)	Productive capabilities of the 785D truck are such that, under certain job conditions, TKPH (TMPH) capabilities of standard or optional tires could be exceeded and, therefore, limit production. Productive capabilities of the 785D 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. Caterpillar recommends the customer evaluate all job conditions and consult the tire manufacturer for proper tire selection.

Service Refill Capacities

Fuel Tank	500 gal (US) 1893 l
Cooling System	100 gal (US) 379 l
Crankcase	54 gal (US) 204 l
Differential - Final Drives	115 gal (US) 436 l
Steering Tank	24 gal (US) 90 l
Steering System - Including Tank	31 gal (US) 117 l
Brake Hoist System	89 gal (US) 337 l
Brake Hoist System - Includes Tank	169 gal (US) 641 l
Torque Converter - Transmission System - Including Sump	65.5 gal (US) 248 l

Cab

Air Conditioning	18390 Btu/lb 42780 Btu/kWh
Heater / Defroster	43930 Btu 11070 kJ/kg
ROPS Standards (1)	The ROPS (Rollover Protective Structure) for the cab offered by Caterpillar meets ISO 3471:2008 ROPS criteria. The ROPS (Rollover Protective Structure) for the cab offered by Caterpillar meets ISO 3471:2008 ROPS criteria.
FOPS Standards	The FOPS (Falling Objects Protective Structure) meets ISO 3449:2005 Level II FOPS criteria. The FOPS (Falling Objects Protective Structure) meets ISO 3449:2005 Level II FOPS criteria.
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 pressure level for the standard machine measured at a distance of 15 m (49 ft) according to the test procedures specified in SAE J88 APR95, mid-gear moving operation is 89 dB(A). 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 APR95, mid-gear moving operation is 89 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 785D Water Truck

Overview

Control Dust. Increase Visibility. Reduce Risk.

Benefits

Enhance Safety and Productivity

Scalable Connectivity with Cat® MineStar™

Reduce Costs Sustainably and Efficiently

Features At A Glance

ENHANCE SAFETY & PRODUCTIVITY AT YOUR MINESITE

OPERATOR COMFORT

MEET YOUR PRODUCTION TARGETS

CONSERVE WATER. USE ONLY WHAT YOU NEED.

LOWERING YOUR FUEL COSTS

CONNECT WITH CAT® MINESTAR™

BASIC CONNECTIVITY: EQUIPMENT TRACKING

PREMIUM CONNECTIVITY: EQUIPMENT TRACKING + PRODUCTION RECORDING

SERVICING EASE

BACKED BY THE ONE YOU TRUST

Product Specifications for 785D 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

785D Water Truck Standard Equipment

NOTE

ELECTRICAL

SUSPENSION SYSTEMS

OPERATOR ENVIRONMENT

CAT TECHNOLOGY PRODUCTS

POWERTRAIN

GUARDS

FLUIDS

OTHER STANDARD EQUIPMENT

CAT WATER DELIVERY SYSTEM (WDS)

785D Water Truck Optional Equipment

NOTE

OPERATOR ENVIRONMENT

COLD WEATHER

TIRES AND RIMS

INFORMATION MANAGEMENT

SERVICE CENTER

MISCELLANEOUS

POWERTRAIN

CAT TECHNOLOGY PRODUCTS

Water Tank Offerings with Options

Product Specifications for 785D 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

785D Water Truck Standard Equipment

NOTE

ELECTRICAL

SUSPENSION SYSTEMS

OPERATOR ENVIRONMENT

CAT TECHNOLOGY PRODUCTS

POWERTRAIN

GUARDS

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