Top Performance. Developed specifically for construction, mining and quarry applications, the 770 optimizes demands for lower cost per ton. Reliable, Durable Operation. Rugged construction and easy maintenance procedures ensure long life with low operating costs.
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Engine |
Units: US | |
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Engine Model |
Cat® C15 ACERT |
Cat® C15 ACERT |
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Rated Engine Speed |
1800 RPM |
1800 RPM |
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Gross Power – SAE J1995 |
511 hp |
381 kW |
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Net Power – SAE J1349 |
476 hp |
355 kW |
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Net Power – 80/1269/EEC |
476 hp |
355 kW |
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Number of Cylinders |
6 |
6 |
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Bore |
5.4 in |
137 mm |
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Stroke |
6.7 in |
171 mm |
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Displacement |
927.6 in3 |
15.2 L |
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Net Power – ISO 9249:1997 |
476 hp |
355 kW |
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Operating Specifications |
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Nominal Payload Class |
40 tons |
36.3 tonnes |
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Top Speed – Loaded |
46.5 mph |
74.8 km/h |
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Body Capacity – SAE 2:1 |
32.8 yd3 |
25 m3 |
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Weights – Approximate |
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Target Gross Machine Operating Weight |
157000 lb |
71214 kg |
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Chassis Weight |
53380 lb |
24213 kg |
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Body Weight |
22110 lb |
10029 kg |
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Capacity – Dual Slope – 100% fill factor |
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Struck |
21.5 yd3 |
16.4 m3 |
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Heaped 2:1 (SAE) |
32.8 yd3 |
25.1 m3 |
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Capacity – Flat Floor – 100% fill factor |
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Struck |
21.5 yd3 |
16.4 m3 |
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Heaped 2:1 (SAE) |
32.8 yd3 |
25.1 m3 |
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Weight Distributions – Approximate |
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Front Axle – Empty |
48 % |
48 % |
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Front Axle – Loaded |
34 % |
34 % |
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Rear Axle – Empty |
52 % |
52 % |
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Rear Axle – Loaded |
66 % |
66 % |
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Transmission |
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Forward 1 |
7.5 mph |
12.1 km/h |
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Forward 2 |
10.3 mph |
16.6 km/h |
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Forward 3 |
14 mph |
22.5 km/h |
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Forward 4 |
18.8 mph |
30.3 km/h |
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Forward 5 |
25.4 mph |
40.9 km/h |
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Forward 6 |
34.3 mph |
55.2 km/h |
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Forward 7 |
46.5 mph |
74.8 km/h |
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Reverse |
9.9 mph |
15.9 km/h |
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Final Drives |
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Differential Ratio |
2.74:1 |
2.74:1 |
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Planetary Ratio |
4.80:1 |
4.80:1 |
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Total Reduction Ratio |
13.15:1 |
13.15:1 |
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Brakes |
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Brake Surface – Front |
216 in2 |
1395 cm2 |
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Brake Surface – Rear |
6235 in2 |
40266 cm2 |
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Brake Standards |
ISO 3450: 1996 |
ISO 3450: 1996 |
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Service Refill Capacities |
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Fuel Tank |
140 gal |
530 L |
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Cooling System |
30 gal |
114 L |
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Differentials and Final Drives |
22 gal |
83 L |
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Steering Tank |
9 gal |
34 L |
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Steering System (Includes Tank) |
15 gal |
56 L |
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Body Hoists |
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Pump Flow – High Idle |
136 gal/min |
515 L/min |
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Relief Valve Setting – Raise |
2500 psi |
17255 kPa |
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Relief Valve Setting – Lower |
500 psi |
3450 kPa |
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Body Raise Time – High Idle |
9.5 Seconds |
9.5 Seconds |
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Body Lower Time – Float |
12.5 Seconds |
12.5 Seconds |
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Body Power Down – High Idle |
12.5 Seconds |
12.5 Seconds |
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Suspension |
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Effective Cylinder Stroke – Front |
9.2 in |
234 mm |
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Effective Cylinder Stroke – Rear |
5.9 in |
149 mm |
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Rear Axle Oscillation |
5.4 Degrees |
5.4 Degrees |
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Dimensions |
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Height to Top of ROPS |
12.83 ft |
3911 mm |
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Overall Body Length |
26.81 ft |
8172 mm |
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Inside Body Length |
18.21 ft |
5549 mm |
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Overall Length |
28.67 ft |
8740 mm |
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Wheelbase |
13 ft |
3960 mm |
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Rear Axle to Tail |
8.5 ft |
2590 mm |
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Ground Clearance |
2.23 ft |
680 mm |
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Dump Clearance |
1.52 ft |
464 mm |
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Loading Height – Empty |
10.24 ft |
3120 mm |
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Inside Body Depth – Max |
4.35 ft |
1326 mm |
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Overall Height – Body Raised |
27.17 ft |
8280 mm |
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Operating Width |
15.59 ft |
4751 mm |
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Centerline Front Tire Width |
10.2 ft |
3110 mm |
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Engine Guard Clearance |
2.21 ft |
673 mm |
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Overall Canopy Width |
13 ft |
3960 mm |
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Inside Body Width |
12.13 ft |
3698 mm |
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Front Canopy Height |
13.58 ft |
4140 mm |
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Rear Axle Clearance |
1.67 ft |
508 mm |
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Centerline Rear Dual Tire Width |
8.32 ft |
2536 mm |
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Overall Tire Width |
12.12 ft |
3693 mm |
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Tires |
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Standard Tire |
18.00R33 (E4) |
18.00R33 (E4) |
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ROPS |
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ROPS / FOPS Standards |
. |
. |
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Sound |
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Sound Standards |
. |
. |
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Steering |
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Steering Standards |
ISO 5010:1992 |
ISO 5010:1992 |
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Steer Angle |
40 Degrees |
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