CAT 785G (Tier 4) Haul Truck

Dimensions (All Dimensions Are Approximate. Msd Ii Body, 33r51 Tires, Unloaded Machine.)

Overall Length 39.23 ft in (11.96 m)
Ground Clearance 3.29 ft in (1.01 m)
Dump Clearance 3.7 ft in (1.13 m)
Engine Guard Clearance 3.41 ft in (1.04 m)
Front Canopy Height 19.8 ft in (6.04 m)
Height – Top Of Rops 17.09 ft in (5.21 m)
Inside Body Depth – Maximum 9.15 ft in (2.79 m)
Inside Body Length 27.29 ft in (8.32 m)
Inside Body Width 19.72 ft in (6.02 m)
Loading Height – Empty 17.39 ft in (5.31 m)
Operating Width 24.72 ft in (7.54 m)
Outside Body Width 22 ft in (6.71 m)
Overall Body Length 39.32 ft in (11.99 m)
Overall Canopy Width 24.81 ft in (7.57 m)
Overall Height – Body Raised 39.48 ft in (12.04 m)
Overall Tire Width 20.59 ft in (6.28 m)
Rear Axle – Clearance 3.25 ft in (1 m)
Rear Axle – Tail 12.56 ft in (3.83 m)
Rear Sidewall Height 2.87 ft in (0.88 m)
Centerline Front Tire Width 15.91 ft in (4.85 m)
Wheel Base 17 ft in (5.19 m)
Centerline Of Rear Dual Tire Width 14.06 ft in (4.29 m)

Body

Standard Dual Slope Weight 51892 lb (23537.9 kg)
Standard Dual Slope Volume (Sae 2:1) 102 yd3 (78 m3)
Standard Msd Weight 46711 lb (21187.8 kg)
Standard Msd Volume (Sae 2:1) 130 yd3 (99.4 m3)
Note (1) Body weight only. Does not include liners.
Note (2) Contact your local Cat dealer for site specific body recommendations.

Engine Details

Displacement 3573 cu in (58.6 L)
Bore 6.7 in (170.2 mm)
Stroke 8.5 in (215.9 mm)
Emissions Meets U.S. EPA Tier 4 Final emissions standards.
Gross Power – Sae J1995 1600 hp (1193.2 kw)
Engine Model Cat 3512E HD
Note (1) Power rating conditions: At 1,650 rpm rated speed based on SAE J1995:2014 standard air inlet conditions of 25 degrees C (77 degrees F) and 99 kPa (29.31 in Hg) dry barometric pressure. Based on fuel of 35 degrees API gravity (at 15.6 degrees C or 60 degrees F) having a LHV of 42 780 kJ/kg (18,390 Btu/lb) when used at 29 degrees C (84.2 degrees F).
Note (2) No engine derating required up to 2987 m (9800 ft) altitude per standard conditions.
Note (3) Selectable 1,450 hp configuration.
Gross Power – Sae J1995:2014 1600 hp (1193.2 kw)

Transmission

Reverse 6.8 mile/h
Forward – 1 7.5 mph (12.1 km/h)
Forward – 2 10.2 mph (16.5 km/h)
Forward – 3 13.8 mph (22.3 km/h)
Forward – 4 18.6 mph (30 km/h)
Forward – 5 25.2 mph (40.6 km/h)
Forward – 6 34 mph (54.8 km/h)

Steering

Steering Standards ISO 5010:2007

Transmission

Note Maximum travel speeds with standard 33.00-R51 tires.

Steering

Steering Angle 36 degrees
Turning Diameter – Iso 7457:1997 (33.00r51 Tires) 97.8 ft in (29.8 m)
Machine Clearance Diameter – Iso 7457:1997 (33.00r51 Tires) 109 ft in (33.2 m)

Transmission

Total Final Drive Reduction Ratio 22.75:1

Tires

Standard Tire 33.00R51 (E3 and E4)
Note (1) Productive capabilities of the 785G truck are such that, under certain job conditions, TKPH (TMPH) capabilities could be exceeded and, therefore, limit production.
Note (2) CAT recommends the customer evaluate all job conditions and consult the tire manufacturer for proper tire selection.
Optional Tire 36.00R51 (Michelin and Bridgestone)

Body Hoists

Body Raise Time – High Idle 15.2 s
Note (1) Twin, two-stage hydraulic cylinder mounted outside main frame; double-acting cylinders in second stage.
Note (2) Power raise in both stages; power down in second stage.
Note (3) Automatic body lower modulation reduces impact on frame.
Body Lower Time – Float High Idle 15.9 s
Body Lower Time – Float Low Idle 16.2 s
Body Power Down- High Idle 15.9 s

Operating Specifications

Note (1) GMW depends on tire selection. Consult your tire manufacturer for maximum loaded top speed.
Note (2) Refer to the Cat Mining Truck 10/10/20 Overload Policy (AEXQ0250) for maximum gross machine weight limitations.
Nominal Payload Capacity 292000 lb (132448.9 kg)
Gross Machine Operating Weight (Gmw) (33r51 Tires) 550000 lb (249475.9 kg)
Nominal Payload Capacity (36.00r51 Tires)* 296000 lb (134263.3 kg)
Gross Machine Operating Weight (Gmw) (36r51 Tires) 564000 lb (255826.2 kg)
Nominal Payload Capacity (33.00r51 Tires)* 292000 lb (132448.9 kg)
Note (3) *Includes standard liners and MSD II (Mine Specific Design) body.

Service Refill Capacities

Cooling System 100 gal (378.6 L)
Differential – Final Drives 139 gal (526.2 L)
Steering Tank 29 gal (109.8 L)
Fuel Tank Capacity 410 gal (1552.1 L)
Torque Converter – Transmission System – Including Sump 46 gal (174.2 L)
Brake Hoist System – Includes Tank 160 gal (605.7 L)
Def Tank 36 gal (136.3 L)
Engine Crankcase 54 gal (204.5 L)
Brake/Hydraulic Tank 135 gal (511.1 L)
Note (1) Separate steering system and separate torque converter/transmission system prevents cross contamination.
Note (2) Contact your local Cat dealer for DEF infrastructure recommendations.
Steering System – Includes Tank 45 gal (170.4 L)

Weight Distributions – Approximate

Front Axle – Empty 48%
Rear Axle – Empty 52%
Front Axle – Loaded – Target 33%
Rear Axle – Loaded – Target 67%

Weights – Approximate

Note (1) Chassis weight includes standard mandatory attachments, 33R51 tires, all operating fluid levels full and 100% fuel.
Note (2) Estimated weight of debris is not included in operating chassis weight.
Note (3) Body weight varies depending on body selection and configuration.
Body Weight Range 21 275 kg-30 623 kg (46,903 lb-67,512 lb)
Empty Operating Chassis Weight 186661 lb (84668.1 kg)

Rops

Rops Standards ROPS (Rollover Protective Structure) for cab offered by CAT meets ISO 3471:2008 ROPS and ISO 13459:2012 criteria.
Fops Standards FOPS (Falling Objects Protective Structure) meets ISO 3449:2005 and ISO 13459:2012 Level II criteria.

Sound

Cooling Fan Drive – Direct Drive – Operator Sound Level (Iso 6396:2008) 77 dB(A)
Note (1) Testing done per specified standard work cycle procedures and conditions with 50% HVAC blower fan speed. Optional clutch control fan measurement done at 70% of maximum engine cooling fan speed.
Note (2) Hearing protection may be needed when operating with an open operator station/cab (when not properly maintained or doors/windows open) for extended periods or in a noisy environment.
Cooling Fan Drive – Direct Drive – Machine Sound Level (Iso 6395:2008) 121 dB(A)
Cooling Fan Drive – Optional Clutch – Operator Sound Level (Iso 6396:2008) 75 dB(A)
Cooling Fan Drive – Optional Clutch – Machine Sound Level (Iso 6395:2008) 120 dB(A)

Suspension

Cylinder Stroke – Front 12.6 in (320.1 mm)
Cylinder Stroke – Rear 6.5 in (165.1 mm)

Braking System

Standards ISO 3450:2011
Brake Surface – Rear 13908 in2 (9 m2)
Note Oil cooled four corner hydraulic actuated disc brakes.
Brake Surface – Front 9487 in2 (6.2 m2)
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