COMPARE MODELS
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Water Trucks
785D Water Truck
ADD MODEL
ADD MODEL
Engine Model
Cat® 3512C HD
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Gross Power - SAE J1995
1450 HP
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Net Power - SAE J1349
1348 HP
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Emissions
Fuel Optimized
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Bore
6.7 in
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Stroke
8.4 in
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Displacement
3573.6 in³
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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.
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Maximum water flow
1200 gal(US)/min
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Water per spray head (minimum)
35 gal(US)/min
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Water per spray head (maximum)
600 gal(US)/min
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Spray head opening range (minimum)
0.04 in
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Spray head opening range (maximum)
0.75 in
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Maximum size debris flushed through spray head
0.75 in
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Spray system hydraulic tank capacity
7.25 gal (US)
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Maximum number of rear spray heads
5
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Minimum number of rear spray heads (recommended 3)
2
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Minimum number of front/side spray heads
2
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Maximum number of front/side spray heads
0
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Maximum water from cannon (idle)
600 gal(US)/min
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Maximum water from cannon (high idle)
1250 gal(US)/min
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Maximum cannon spray distance
200 ft
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Type
Wet water pump/hydraulic motor coupling
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Note
Maximum travel speeds with standard 33.00-R51 tires.
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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).
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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.
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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.
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Note (5)
Water flow is continually adjusted during operation to conserve water and achieve desired coverage and flow rate
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Water Tank Capacity
up to 121 133 L (32,000 gal)
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Machine Weight (with water tank full)
480,655 lb - 520,237 lb / 218 022 kg - 235 976 kg
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Empty Machine Operating Weight (without water / with fuel)
241,647 lb - 251,098 lb / 109 610 kg - 113 896 kg
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Water Tank - Max Empty Weight (no WDS)
57,320 lb - 66,769 lb / 26 000 kg - 30 286 kg
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Target Gross Machine Weight
550000 lb
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Chassis Weight
180827 lb
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Forward - 1
7.5 mile/h
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Forward - 2
10.2 mile/h
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Forward - 3
13.8 mile/h
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Forward - 4
18.6 mile/h
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Forward - 5
25.2 mile/h
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Forward - 6
34 mile/h
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Reverse
6.8 mile/h
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Differential Ratio
2.10:1
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Planetary Ratio
10.83:1
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Total Reduction Ratio
22.75:1
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Brake Surface - Front
9497 in²
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Brake Surface - Rear
13908 in²
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Brake Standards
ISO 3450:2011
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Pump Flow - High Idle
198 gal/min
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Relief Valve Setting - Raise
2500 psi
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Relief Valve Setting - Lower
500 psi
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Body Raise Time - High Idle
15.2 s
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Body Lower Time - Float
16.2 s
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Body Lower Time - High Idle
15.9 s
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Front Axle - Empty
46 %
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Front Axle - Loaded
33 %
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Rear Axle - Empty
54 %
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Rear Axle - Loaded
67 %
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Rear axle - Oscillation
5 °
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Steering Standards
ISO 5010:2007
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Steer Angle
36 °
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Turning Diameter - Front
97.7 ft
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Standard Tire
33.00-R51 (E3 & E4)
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Fuel Tank
500 gal (US)
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Cooling System
100 gal (US)
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Crankcase
54 gal (US)
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Differential - Final Drives
115 gal (US)
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Steering Tank
24 gal (US)
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Steering System - Including Tank
31 gal (US)
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Brake Hoist System
89 gal (US)
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Brake Hoist System - Includes Tank
169 gal (US)
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Torque Converter - Transmission System - Including Sump
65.5 gal (US)
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Air Conditioning
18390 Btu/lb
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Heater / Defroster
43930 Btu
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ROPS Standards (1)
The ROPS (Rollover Protective Structure) for the cab offered by Caterpillar meets ISO 3471:2008 ROPS criteria.
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FOPS Standards
The FOPS (Falling Objects Protective Structure) meets ISO 3449:2005 Level II FOPS criteria.
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