CAT 770 Haul Truck


Dimensions

Overall Length 28.67 ft in (8738.62 mm)
Overall Width 15.59 ft in (4751 mm)
Overall Height 10.24 ft in (3120 mm)
Wheelbase 12.99 ft in (3960 mm)
Ground Clearance 2.23 ft in (679.71 mm)
Dump Height 27.17 ft in (8280 mm)
Dump Ground Clearance 1.58 ft in (498 mm)
Inside Body Depth – Maximum 4.35 ft in (1.33 m)
Inside Body Length 18.21 ft in (5.56 m)
Dump Clearance 1.52 ft in (0.47 m)
Centerline Front Tire Width 10.2 ft in (3.11 m)
Centerline Of Rear Dual Tire Width 8.32 ft in (2.54 m)
Loading Height – Empty 10.24 ft in (3.13 m)
Operating Width 15.59 ft in (4751.84 mm)
Overall Body Length 26.81 ft in (8.18 m)
Overall Canopy Width 13 ft in (3.97 m)
Overall Height – Body Raised 27.17 ft in (8.29 m)
Overall Tire Width 12.12 ft in (3.7 m)
Inside Body Width 12.13 ft in (3.7 m)
Rear Axle – Clearance 1.67 ft in (0.51 m)
Rear Axle – Tail 8.5 ft in (2.6 m)
Wheel Base 13 ft in (3.97 m)
Engine Guard Clearance 2.21 ft in (0.68 m)
Front Canopy Height 13.58 ft in (4.14 m)
Height – Top Of Rops 12.83 ft in (3.92 m)

Dump

Dump Angle 47.5 degrees
Load Capacity – Struck 22.4 yd3 (17.11 m3)
Load Capacity – Heaped 32.9 yd3 (25.1 m3)
Rated Payload 80000 lb (36287.4 kg)
Lower Time 12.5 sec
Raise Time 9.5 sec

Engine Details

Number Of Cylinders 6
Engine Make CAT
Engine Model C15 ACERT
Net Power 476 hp (355 kw)
Gross Power 511 hp (381 kw)
Power Measured @ 1800 rpm
Max Torque 1711 lb ft (2319.9 Nm)
Displacement 927.6 cu in (15.3 L)
Aspiration Turbocharged
Peak Torque 1711 lb ft (2319.9 Nm)
Bore 5.4 in (137.2 mm)
Stroke 6.7 in (170.2 mm)
Net Power – Sae J1349 476 hp (355 kw)
Net Power – 80/1269/Eec 476 hp (355 kw)
Gross Power – Sae J1995 511 hp (381.1 kw)
Engine Model Cat C15 ACERT
Rated Engine Speed 1800 rpm
Net Power – Iso 9249:1997 476 hp (355 kw)

Operational Specs

Fuel Tank Capacity 140 gal (530 L)
Cooling System Fluid Capacity 30 gal (114 L)
Engine Oil Capacity 56 gal (15 L)
Diff And Final Drive Fluid Capacity 42 gal (159 L)
Steering System Fluid Capacity 15 gal (56 L)
Brake/Hoist System Fluid Capacity 73 gal (277 L)
Hydraulic System Fluid Capacity 25 gal (95 L)
Tire Size 18.00R33(E4)

Transmission

Transmission Type Power Shift
Number Of Gears – Forward 7
Number Of Gears – Reverse 1
Max Speed 46.5 mph (74.8 km/h)
Reverse 9.9 mile/h
Forward – 1 7.5 mph (12.1 km/h)
Forward – 2 10.3 mph (16.6 km/h)
Forward – 3 14 mph (22.6 km/h)
Forward – 4 18.8 mph (30.3 km/h)
Forward – 5 25.4 mph (40.9 km/h)
Forward – 6 34.3 mph (55.3 km/h)
Forward – 7 46.5 mph (74.9 km/h)

Steering

Steering Standards ISO 5010:1992
Steer Angle 40 degrees

Weights

Empty Weight 75490 lb (34242 kg)
Loaded Weight 157000 lb (71214 kg)
Weight Distribution Front – Empty 48 %
Weight Distribution Rear – Empty 52 %
Weight Distribution Front – Loaded 34 %
Weight Distribution Rear – Loaded 66 %

Tires

Standard Tire 18.00R33 (E4)

Brakes

Brake Surface – Front 216 in2 (0.2 m2)
Brake Surface – Rear 6235 in2 (4.1 m2)
Brake Standards ISO 3450: 1996

Body Hoists

Pump Flow – High Idle 136 gal/min
Relief Valve Setting – Raise 2500 psi
Body Raise Time – High Idle 9.5 s
Body Lower Time – Float 12.5 s
Body Power Down – High Idle 12.5 s
Relief Valve Setting – Lower 500 psi

Final Drives

Planetary Ratio 4.80:1
Differential Ratio 2.74:1
Total Reduction Ratio 13.15:1

Operating Specifications

Nominal Payload Class (100%) 80000 lb (36287.4 kg)
Top Speed – Loaded 46.5 mph (74.9 km/h)
Maximum Capacity 80000 lb (36287.4 kg)
Body Capacity – Sae 2:1 32.8 yd3 (25.1 m3)
Target Payload Capacity 80000 lb (36287.4 kg)

Service Refill Capacities

Cooling System 30 gal (113.6 L)
Differential – Final Drives 22 gal (83.3 L)
Steering Tank 9 gal (34.1 L)
Steering System – Including Tank 15 gal (56.8 L)
Fuel Tank Capacity 140 gal (530 L)
Crankcase 9 gal (34.1 L)
Brake / Hoist / Fan Hydraulic Tank 35 gal (132.5 L)
Brake/Hoist/Fan System (Tank) 73 gal (276.4 L)
Transmission – Torque Converter Sump 14 gal (53 L)
Transmission – Torque Converter System – Including Sump 19 gal (72 L)

Weight Distributions – Approximate

Front Axle – Empty 48 %
Front Axle – Loaded 34 %
Rear Axle – Empty 52 %
Rear Axle – Loaded 66 %

Weights – Approximate

Target Gross Machine Operating Weight 157000 lb (71214.1 kg)
Chassis Weight 53380 lb (24212.8 kg)
Body Weight 22110 lb (10029 kg)

Capacity – Dual Slope – 100% Fill Factor

Struck 21.5 yd3 (16.5 m3)
Heaped 2:1 (Sae) 32.8 yd3 (25.1 m3)

Capacity – Flat Floor – 100% Fill Factor

Struck 21.5 yd3 (16.5 m3)
Heaped 2:1 (Sae) 32.8 yd3 (25.1 m3)

Rops

Rops/Fops Standards .

Sound

Sound Standards .

Suspension

Rear Axle – Oscillation 5.4 degrees
Effective Cylinder Stroke – Front 9.2 in (233.7 mm)
Effective Cylinder Stroke – Rear 5.9 in (149.9 mm)
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