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Off-Highway Trucks
785D Water Truck
Cat® Water Solutions helps you efficiently reduce haul road dust to enhance safety and increase productivity at your job site, quarry, or mine. An integrated truck, tank, and water delivery system – connected with scalable levels of technology helps you solve overwatering and underwatering issues with a focus on sustainable operations. This innovative water solution is sold and supported by the local Cat dealer you know and trust.
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Overview
Longer description goes here
Engine
UNITS:
Metric
Imperial
| Engine Model | Cat® 3512C HD | Cat® 3512C HD |
| Gross Power - SAE J1995:2014 | 1082 kW | 1450 hp |
| Net Power - SAE J1349:2011 | 1005 kW | 1348 hp |
| Emissions | Fuel Optimized | Fuel Optimized |
| Bore | 170 mm | 6.7 in |
| Stroke | 215 mm | 8.4 in |
| Displacement | 58.56 l | 3573.6 in³ |
| 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 | 6814 l/min | 1800 gal(US)/min |
| Water per spray head (minimum) | 132.5 l/min | 35 gal(US)/min |
| Water per spray head (maximum) | 2270 l/min | 600 gal(US)/min |
| Spray head opening range (minimum) | 1 mm | 0.04 in |
| Spray head opening range (maximum) | 19 mm | 0.75 in |
| Maximum size debris flushed through spray head | 19 mm | 0.75 in |
| Spray system hydraulic tank capacity | 27.5 l | 7.25 gal (US) |
| 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) | 2271 l/min | 600 gal(US)/min |
| Maximum water from cannon (high idle) | 6246 l/min | 1650 gal(US)/min |
| Maximum cannon spray distance | 61 m | 200 ft |
| 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 | 249476 kg | 550000 lb |
| Chassis Weight | 82022 kg | 180827 lb |
Transmission
| Forward - 1 | 12.1 km/h | 7.5 mile/h |
| Forward - 2 | 16.3 km/h | 10.2 mile/h |
| Forward - 3 | 22.2 km/h | 13.8 mile/h |
| Forward - 4 | 29.9 km/h | 18.6 mile/h |
| Forward - 5 | 40.6 km/h | 25.2 mile/h |
| Forward - 6 | 54.8 km/h | 34 mile/h |
| Reverse | 11 km/h | 6.8 mile/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 | 61270 cm² | 9497 in² |
| Brake Surface - Rear | 89729 cm² | 13908 in² |
| Brake Standards | ISO 3450:2011 | ISO 3450:2011 |
Body Hoists
| Pump Flow - High Idle | 750 l/min | 198 gal/min |
| Relief Valve Setting - Raise | 17238 kPa | 2500 psi |
| Relief Valve Setting - Lower | 3450 kPa | 500 psi |
| 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 | 29.8 m | 97.7 ft |
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 | 1893 l | 500 gal (US) |
| Cooling System | 379 l | 100 gal (US) |
| Crankcase | 204 l | 54 gal (US) |
| Differential - Final Drives | 436 l | 115 gal (US) |
| Steering Tank | 90 l | 24 gal (US) |
| Steering System - Including Tank | 117 l | 31 gal (US) |
| Brake Hoist System | 337 l | 89 gal (US) |
| Brake Hoist System - Includes Tank | 641 l | 169 gal (US) |
| Torque Converter - Transmission System - Including Sump | 248 l | 65.5 gal (US) |
Cab
| Air Conditioning | 42780 Btu/kWh | 18390 Btu/lb |
| Heater / Defroster | 11070 kJ/kg | 43930 Btu |
| 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. |
Features
ENHANCED SITE SAFETY
ENHANCE SAFETY & PRODUCTIVITY AT YOUR MINESITE
- Lower dust levels, increase visibility, maintain haul road safety — know where and when to water
- With automated water delivery, the operator can remain focused on traffic and driving
- When water tank is full, the auto shutoff feature prevents overfilling and results in increased component life
- Monitor tank fill from inside the cab
- The water delivery system features automatic start and stop, based on truck speed, which eliminates overwatering at road intersections to improve safety for all vehicles on site
- Traction Control System (TCS) and Wet Disc Braking is standard on all four corners of the truck
- Automatic Retarding Control (ARC) for downhill grades
COMFORTABLE CAB
OPERATOR COMFORT
- The 785D cab is ergonomically designed for total machine control in a comfortable, productive, and safe environment.
- All controls, levers, switches and gauges are positioned to maximize productivity and minimize operator fatigue.
- Factory-installed, integrated and durable ergonomic cab controls for water are user-friendly and easy to learn.
OPTIMIZED PRODUCTIVITY
MEET YOUR PRODUCTION TARGETS
- Properly watered haul roads directly impact fleet cycle times, enabling you to meet production targets.
- Spend less time maintaining haul roads using proper watering techniques to solve overwatering and underwatering
- Prevent damage to trucks and reduce unplanned downtime with properly watered haul roads
- Pump features soft startup and shuts off automatically when the tank is empty, eliminating damage and preventing the pump from running dry
- The Cat 6-speed planetary power shift transmission is matched with the direct-injection 3512C engine to deliver constant power over a wide range of operating speeds and is built tough for long life between overhauls.
EFFICIENCY & SUSTAINABILITY
CONSERVE WATER. USE ONLY WHAT YOU NEED.
- The Cat Water Delivery System (WDS) helps you manage water effectively and sustainability — helping you do more with less.
- WDS utilizes automatic start and stop to help eliminate overwatering at road intersections.
- WDS provides variable water flow based on truck speed, ensuring most efficient water placement.
- The water cannon operates while truck is idling, reducing fuel consumption by up to *50%.
*Results shown from Cat WDS cannon output. Testing was conducted at the Caterpillar Tucson Proving Ground with data captured from a production study. Results may vary.
DO MORE WITH LESS FUEL
LOWERING YOUR FUEL COSTS
- We've designed our trucks to use less fuel, which reduces engine emissions and carbon footprint, and there is zero fuel burn during retarding.
WATER DELIVERY SYSTEM:
- The water cannon operates at idle, which reduces fuel consumption during cannon operation by up to 50%.
*Results shown from Cat WDS cannon output. Testing was conducted at the Caterpillar Tucson Proving Ground with data captured from a production study. Results may vary.
SCALABLE CONNECTIVITY
CONNECT WITH CAT® MINESTAR™
- Cat MineStar for water uses cloud-based connectivity through cellular and WiFi connection to collect and manage data at any job site.
- We offer two levels of connectivity (Basic & Premium*) to meet any customer need using Cat MineStar.
- Water Solutions data can help ensure customers are meeting regulatory requirements.
- View maps and dashboards of your operation to see how much your trucks are watering, where they are located, how much fuel they are using, and more.
BASIC CONNECTIVITY: EQUIPMENT TRACKING
“I need to know where my truck is located and when it’s watering.”
Basic Connectivity* automates fundamental data collection, eliminating paper recording by the operator.- Near-real-time and historical reporting.
- Truck location and utilization data: routes, starts and stops.
- Fuel and water level.
- Whether or not the truck is spraying water.
- Water Delivery System utilization (auto vs. manual mode).
*Based on equipment connectivity via WiFi or cellular data. Basic Connectivity Package comes standard with a 6-month complimentary service-based offering.
PREMIUM CONNECTIVITY: EQUIPMENT TRACKING + PRODUCTION RECORDING
“I need to understand fuel utilization, water cycle duration, and how much water the truck is using.”
Premium Connectivity* offers a comprehensive reporting package with data and detailed reports o help mine managers and operators improve watering techniques and efficiency.
- Water usage by truck/fill station.
- Volume of water output over time and area covered.
- Water distribution rate, water delivery system
- setting by location, truck, and conditions.
- Activity breakdown including time and distance.
- (watering, not watering, stopped, etc.)
- View and export at least 6 weeks of historical data.
*Based on equipment connectivity via WiFi or cellular data.
Serviceability
SERVICING EASE
- Easy access to daily service points simplifies servicing and reduces time spent on regular maintenance procedures.
- Enhanced serviceability and 500-hour service intervals are designed to increase machine availability and productivity.
- Maintenance Platform provides access to engine, air filters, steering hydraulic tank and battery compartment.
- In-Frame Access permits easy access to major components for easy servicing and removal.
- Ground-Level Access allows convenient servicing to tanks, filters, drains, and engine shutdown.
- Autolube: Automatic lubrication system reduces maintenance time by automatically lubricating necessary components on a regular basis.
- FastFill Service Center: optional service center reduces daily maintenance times with clustered fast fill connections for steering oil, transmission oil, engine oil and coolant.
- Pressure Test Points and S•O•S℠ Ports
- Sealed Electrical Connectors: Electrical connectors are sealed to lock out dust and moisture. Harnesses are braided for protection.
- Fast Fill Fuel provides a receiver at the fuel tank
- Easy-to-change air filters
INTEGRATION & SUPPORT
BACKED BY THE ONE YOU TRUST
- Cat Water Solutions trucks are sold, serviced, and supported by the local Cat dealer you know and trust.
- Full support of Cat dealer and parts network.
- The truck is eligible for Equipment Protection Plans (EPP) & Customer Value Agreements (CVAs).
Standard Equipment
NOTE
| Standard and optional equipment may vary. Consult your Cat dealer for details. |
ELECTRICAL
| Alarm, Back-up |
| Alternator (105 A) |
| Batteries, 93Ah, Low-maintenance, 12V (2) |
| Converter, 12V electrical |
| Lighting System |
| Electrical System, 24V, 15A |
SUSPENSION SYSTEMS
| Suspension, rear |
OPERATOR ENVIRONMENT
| Dome courtesy light |
| Gauges/Indicators |
| Air conditioning |
| Ashtray and cigarette lighter |
| Coat hook |
| Diagnostic connection port |
| Entertainment Radio Ready – 5 amp converter – Speakers – Antenna – Wiring harness |
| Heater/defroster |
| Horn |
| VIMS |
| TPMS |
| Storage compartment |
| Steering wheel, tilt, padded, telescopic |
| ROPS cab, insulated/sound suppressed |
| Tinted glass |
| Window, electric powered, operator |
| Sun visor |
| Window, right side, hinged access/egress |
| Windshield wiper (intermittent) and washer |
CAT TECHNOLOGY PRODUCTS
| Adaptive economy mode |
| Object detection (4 cameras, 4 radars) |
| Product Link™ Ready (Level 1) |
| TKPH/TMPH (Tons Kilometer Per Hour/ Tons Mile Per Hour) |
| Work Area Vision System (WAVS) |
| Cat MineStar™: Level 1 - Basic (Equipment Tracking)* |
| *Basic connectivity package comes standard on all Cat Water Solutions trucks with a 6-month complimentary service-based offering |
POWERTRAIN
| Braking System |
| Transmission |
GUARDS
| Engine crankcase |
| Driveline |
| Fan and A/C |
FLUIDS
| Extended Life Coolant to –35° C (–30° F) |
OTHER STANDARD EQUIPMENT
| Body mounting group |
| Air Line Dryer (2) |
| Auto lubrication system (Lincoln) |
| Dumping, Auxiliary Quick Connect for “Buddy Dumping” |
| Steering, Auxiliary Quick Connect for Towing |
| Continuous rear axle filtration |
| Diagonal stairway, 600 mm (24 in) |
| Driveline Operator Safety Guard |
| Battery Disconnect |
| Fast-fill Fuel System |
| High speed crankcase oil change |
| Reservoirs (Separate) |
| S•O•S℠ sample ports |
| Supplemental steering (automatic) |
| Tie Down Eyes |
| Tow Hooks, Front |
| Traction Control System |
| Vandalism Protection Locks |
| Vital Information Management System (VIMS) includes: VIMS payload monitor, MAX payload and speed manager |
CAT WATER DELIVERY SYSTEM (WDS)
| Controls: Factory installed and integrated into cab |
| Water System Monitor: integrated into cab, programmable spray configurations, automatic diagnostic messages |
| Variable Hydraulic Pump Drive: 6814 L/min (1,800 gal/min) at speeds of 4 kph to 40 kph (3 to 25 mph) with auto shut-off and soft startup |
| Stainless Steel Spray Heads: maintenance free, patented design resists corrosion |
| Independent Hydraulic Cooling System: minimizes overheating |
| Water Cannon: hydraulically controlled, integrated joystick with cab controls, optional nozzles |
| Parts & service available through global Cat dealer network |
Optional Equipment
NOTE
| Standard and optional equipment may vary. Consult your Cat dealer for details. |
Overview
Longer description goes here
Engine
UNITS:
Metric
Imperial
| Engine Model | Cat® 3512C HD | Cat® 3512C HD |
| Gross Power - SAE J1995:2014 | 1082 kW | 1450 hp |
| Net Power - SAE J1349:2011 | 1005 kW | 1348 hp |
| Emissions | Fuel Optimized | Fuel Optimized |
| Bore | 170 mm | 6.7 in |
| Stroke | 215 mm | 8.4 in |
| Displacement | 58.56 l | 3573.6 in³ |
| 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 | 6814 l/min | 1800 gal(US)/min |
| Water per spray head (minimum) | 132.5 l/min | 35 gal(US)/min |
| Water per spray head (maximum) | 2270 l/min | 600 gal(US)/min |
| Spray head opening range (minimum) | 1 mm | 0.04 in |
| Spray head opening range (maximum) | 19 mm | 0.75 in |
| Maximum size debris flushed through spray head | 19 mm | 0.75 in |
| Spray system hydraulic tank capacity | 27.5 l | 7.25 gal (US) |
| 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) | 2271 l/min | 600 gal(US)/min |
| Maximum water from cannon (high idle) | 6246 l/min | 1650 gal(US)/min |
| Maximum cannon spray distance | 61 m | 200 ft |
| 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 | 249476 kg | 550000 lb |
| Chassis Weight | 82022 kg | 180827 lb |
Transmission
| Forward - 1 | 12.1 km/h | 7.5 mile/h |
| Forward - 2 | 16.3 km/h | 10.2 mile/h |
| Forward - 3 | 22.2 km/h | 13.8 mile/h |
| Forward - 4 | 29.9 km/h | 18.6 mile/h |
| Forward - 5 | 40.6 km/h | 25.2 mile/h |
| Forward - 6 | 54.8 km/h | 34 mile/h |
| Reverse | 11 km/h | 6.8 mile/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 | 61270 cm² | 9497 in² |
| Brake Surface - Rear | 89729 cm² | 13908 in² |
| Brake Standards | ISO 3450:2011 | ISO 3450:2011 |
Body Hoists
| Pump Flow - High Idle | 750 l/min | 198 gal/min |
| Relief Valve Setting - Raise | 17238 kPa | 2500 psi |
| Relief Valve Setting - Lower | 3450 kPa | 500 psi |
| 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 | 29.8 m | 97.7 ft |
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 | 1893 l | 500 gal (US) |
| Cooling System | 379 l | 100 gal (US) |
| Crankcase | 204 l | 54 gal (US) |
| Differential - Final Drives | 436 l | 115 gal (US) |
| Steering Tank | 90 l | 24 gal (US) |
| Steering System - Including Tank | 117 l | 31 gal (US) |
| Brake Hoist System | 337 l | 89 gal (US) |
| Brake Hoist System - Includes Tank | 641 l | 169 gal (US) |
| Torque Converter - Transmission System - Including Sump | 248 l | 65.5 gal (US) |
Cab
| Air Conditioning | 42780 Btu/kWh | 18390 Btu/lb |
| Heater / Defroster | 11070 kJ/kg | 43930 Btu |
| 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. |
Features
ENHANCED SITE SAFETY
ENHANCE SAFETY & PRODUCTIVITY AT YOUR MINESITE
- Lower dust levels, increase visibility, maintain haul road safety — know where and when to water
- With automated water delivery, the operator can remain focused on traffic and driving
- When water tank is full, the auto shutoff feature prevents overfilling and results in increased component life
- Monitor tank fill from inside the cab
- The water delivery system features automatic start and stop, based on truck speed, which eliminates overwatering at road intersections to improve safety for all vehicles on site
- Traction Control System (TCS) and Wet Disc Braking is standard on all four corners of the truck
- Automatic Retarding Control (ARC) for downhill grades
COMFORTABLE CAB
OPERATOR COMFORT
- The 785D cab is ergonomically designed for total machine control in a comfortable, productive, and safe environment.
- All controls, levers, switches and gauges are positioned to maximize productivity and minimize operator fatigue.
- Factory-installed, integrated and durable ergonomic cab controls for water are user-friendly and easy to learn.
OPTIMIZED PRODUCTIVITY
MEET YOUR PRODUCTION TARGETS
- Properly watered haul roads directly impact fleet cycle times, enabling you to meet production targets.
- Spend less time maintaining haul roads using proper watering techniques to solve overwatering and underwatering
- Prevent damage to trucks and reduce unplanned downtime with properly watered haul roads
- Pump features soft startup and shuts off automatically when the tank is empty, eliminating damage and preventing the pump from running dry
- The Cat 6-speed planetary power shift transmission is matched with the direct-injection 3512C engine to deliver constant power over a wide range of operating speeds and is built tough for long life between overhauls.
EFFICIENCY & SUSTAINABILITY
CONSERVE WATER. USE ONLY WHAT YOU NEED.
- The Cat Water Delivery System (WDS) helps you manage water effectively and sustainability — helping you do more with less.
- WDS utilizes automatic start and stop to help eliminate overwatering at road intersections.
- WDS provides variable water flow based on truck speed, ensuring most efficient water placement.
- The water cannon operates while truck is idling, reducing fuel consumption by up to *50%.
*Results shown from Cat WDS cannon output. Testing was conducted at the Caterpillar Tucson Proving Ground with data captured from a production study. Results may vary.
DO MORE WITH LESS FUEL
LOWERING YOUR FUEL COSTS
- We've designed our trucks to use less fuel, which reduces engine emissions and carbon footprint, and there is zero fuel burn during retarding.
WATER DELIVERY SYSTEM:
- The water cannon operates at idle, which reduces fuel consumption during cannon operation by up to 50%.
*Results shown from Cat WDS cannon output. Testing was conducted at the Caterpillar Tucson Proving Ground with data captured from a production study. Results may vary.
SCALABLE CONNECTIVITY
CONNECT WITH CAT® MINESTAR™
- Cat MineStar for water uses cloud-based connectivity through cellular and WiFi connection to collect and manage data at any job site.
- We offer two levels of connectivity (Basic & Premium*) to meet any customer need using Cat MineStar.
- Water Solutions data can help ensure customers are meeting regulatory requirements.
- View maps and dashboards of your operation to see how much your trucks are watering, where they are located, how much fuel they are using, and more.
BASIC CONNECTIVITY: EQUIPMENT TRACKING
“I need to know where my truck is located and when it’s watering.”
Basic Connectivity* automates fundamental data collection, eliminating paper recording by the operator.- Near-real-time and historical reporting.
- Truck location and utilization data: routes, starts and stops.
- Fuel and water level.
- Whether or not the truck is spraying water.
- Water Delivery System utilization (auto vs. manual mode).
*Based on equipment connectivity via WiFi or cellular data. Basic Connectivity Package comes standard with a 6-month complimentary service-based offering.
PREMIUM CONNECTIVITY: EQUIPMENT TRACKING + PRODUCTION RECORDING
“I need to understand fuel utilization, water cycle duration, and how much water the truck is using.”
Premium Connectivity* offers a comprehensive reporting package with data and detailed reports o help mine managers and operators improve watering techniques and efficiency.
- Water usage by truck/fill station.
- Volume of water output over time and area covered.
- Water distribution rate, water delivery system
- setting by location, truck, and conditions.
- Activity breakdown including time and distance.
- (watering, not watering, stopped, etc.)
- View and export at least 6 weeks of historical data.
*Based on equipment connectivity via WiFi or cellular data.
Serviceability
SERVICING EASE
- Easy access to daily service points simplifies servicing and reduces time spent on regular maintenance procedures.
- Enhanced serviceability and 500-hour service intervals are designed to increase machine availability and productivity.
- Maintenance Platform provides access to engine, air filters, steering hydraulic tank and battery compartment.
- In-Frame Access permits easy access to major components for easy servicing and removal.
- Ground-Level Access allows convenient servicing to tanks, filters, drains, and engine shutdown.
- Autolube: Automatic lubrication system reduces maintenance time by automatically lubricating necessary components on a regular basis.
- FastFill Service Center: optional service center reduces daily maintenance times with clustered fast fill connections for steering oil, transmission oil, engine oil and coolant.
- Pressure Test Points and S•O•S℠ Ports
- Sealed Electrical Connectors: Electrical connectors are sealed to lock out dust and moisture. Harnesses are braided for protection.
- Fast Fill Fuel provides a receiver at the fuel tank
- Easy-to-change air filters
INTEGRATION & SUPPORT
BACKED BY THE ONE YOU TRUST
- Cat Water Solutions trucks are sold, serviced, and supported by the local Cat dealer you know and trust.
- Full support of Cat dealer and parts network.
- The truck is eligible for Equipment Protection Plans (EPP) & Customer Value Agreements (CVAs).
NOTE
| Standard and optional equipment may vary. Consult your Cat dealer for details. |
ELECTRICAL
| Alarm, Back-up |
| Alternator (105 A) |
| Batteries, 93Ah, Low-maintenance, 12V (2) |
| Converter, 12V electrical |
| Lighting System |
| Electrical System, 24V, 15A |
SUSPENSION SYSTEMS
| Suspension, rear |
OPERATOR ENVIRONMENT
| Dome courtesy light |
| Gauges/Indicators |
| Air conditioning |
| Ashtray and cigarette lighter |
| Coat hook |
| Diagnostic connection port |
| Entertainment Radio Ready – 5 amp converter – Speakers – Antenna – Wiring harness |
| Heater/defroster |
| Horn |
| VIMS |
| TPMS |
| Storage compartment |
| Steering wheel, tilt, padded, telescopic |
| ROPS cab, insulated/sound suppressed |
| Tinted glass |
| Window, electric powered, operator |
| Sun visor |
| Window, right side, hinged access/egress |
| Windshield wiper (intermittent) and washer |
CAT TECHNOLOGY PRODUCTS
| Adaptive economy mode |
| Object detection (4 cameras, 4 radars) |
| Product Link™ Ready (Level 1) |
| TKPH/TMPH (Tons Kilometer Per Hour/ Tons Mile Per Hour) |
| Work Area Vision System (WAVS) |
| Cat MineStar™: Level 1 - Basic (Equipment Tracking)* |
| *Basic connectivity package comes standard on all Cat Water Solutions trucks with a 6-month complimentary service-based offering |
POWERTRAIN
| Braking System |
| Transmission |
GUARDS
| Engine crankcase |
| Driveline |
| Fan and A/C |
FLUIDS
| Extended Life Coolant to –35° C (–30° F) |
OTHER STANDARD EQUIPMENT
| Body mounting group |
| Air Line Dryer (2) |
| Auto lubrication system (Lincoln) |
| Dumping, Auxiliary Quick Connect for “Buddy Dumping” |
| Steering, Auxiliary Quick Connect for Towing |
| Continuous rear axle filtration |
| Diagonal stairway, 600 mm (24 in) |
| Driveline Operator Safety Guard |
| Battery Disconnect |
| Fast-fill Fuel System |
| High speed crankcase oil change |
| Reservoirs (Separate) |
| S•O•S℠ sample ports |
| Supplemental steering (automatic) |
| Tie Down Eyes |
| Tow Hooks, Front |
| Traction Control System |
| Vandalism Protection Locks |
| Vital Information Management System (VIMS) includes: VIMS payload monitor, MAX payload and speed manager |
CAT WATER DELIVERY SYSTEM (WDS)
| Controls: Factory installed and integrated into cab |
| Water System Monitor: integrated into cab, programmable spray configurations, automatic diagnostic messages |
| Variable Hydraulic Pump Drive: 6814 L/min (1,800 gal/min) at speeds of 4 kph to 40 kph (3 to 25 mph) with auto shut-off and soft startup |
| Stainless Steel Spray Heads: maintenance free, patented design resists corrosion |
| Independent Hydraulic Cooling System: minimizes overheating |
| Water Cannon: hydraulically controlled, integrated joystick with cab controls, optional nozzles |
| Parts & service available through global Cat dealer network |
NOTE
| Standard and optional equipment may vary. Consult your Cat dealer for details. |
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