| Nominal Payload Class (100%) |
42.1 ton (US) (38.2 t) |
| Engine Model |
Cat® C15 |
| Top Speed – Loaded |
45.8 mile/h (73.7 km/h) |
| Rated Engine Speed |
1700 r/min (1700 r/min) |
| Gross Power – SAE J1995 |
515 HP (384 kW) |
| Net Power – SAE J1349 |
477 HP (356 kW) |
| Net Power – ISO 9249 |
477 HP (356 kW) |
| Net Power – 80/1269/EEC |
489 HP (365 kW) |
| Net Power – ISO 14396 |
508 HP (379 kW) |
| Net Torque – SAE J1349 |
1834 ft·lbf (2486 N·m) |
| Number of Cylinders |
6 |
| Bore |
5.4 in (137 mm) |
| Stroke |
6.7 in (171 mm) |
| Displacement |
927.6 in³ (15.2 l) |
| Note (1) |
Power rating applies at 1,700 rpm when tested under the specified condition for the specified standard. |
| Note (2) |
Ratings based on SAE J1995 standard air conditions of 25° C (77° F) and 100 kPa (29.61 Hg) barometer. Power based on fuel having API gravity of 35 at 16° C (60° F) and an LHV of 42 780 kJ/kg (18,390 BTU/lb) when engine used at 30° C (86° F). |
| Note (3) |
No engine derating required up to 3000 m (9,843 ft) altitude. |
| Note (4) |
Meets Japan Small Volume Exemption. |
| Target Gross Machine Operating Weight |
157000 lb (71214 kg) |
| Target Gross Machine Weight |
157000 lb (71214 kg) |
| Chassis Weight |
55948 lb (25378 kg) |
| Body Weight |
17306 lb (7850 kg) |
| Note (1) |
Chassis weight with 100% fuel, hoist, body mounting group, rims, and tires. |
| Note (2) |
Body weight is the standard Dual Slope body with no liner and will vary depending on configuration. |
| Target Payload (100%) |
42.1 ton (US) (38.2 t) |
| Maximum Working Payload (110%) |
46.3 ton (US) (42 t) |
| Maximum Allowable Payload (120%)* |
50.5 ton (US) (45.8 t) |
| Body Capacity – SAE 2:1 |
32.9 yd³ (25.2 m³) |
| Note (1) |
*Refer to Caterpillar 10/10/20 Payload Policy for maximum gross machine weight limitations. |
| Note (2) |
Target payload and capacity based on Dual Slope body with no liner. Attachment selection will affect payload and maximum gross machine operating weight. |
| Forward – 1 |
7.4 mile/h (11.9 km/h) |
| Forward – 2 |
10.1 mile/h (16.3 km/h) |
| Forward – 3 |
13.8 mile/h (22.2 km/h) |
| Forward – 4 |
18.5 mile/h (29.8 km/h) |
| Forward – 5 |
25.1 mile/h (40.4 km/h) |
| Forward – 6 |
33.8 mile/h (54.4 km/h) |
| Forward – 7 |
45.8 mile/h (73.7 km/h) |
| Reverse |
8.8 mile/h (14.2 km/h) |
| Note |
Maximum travel speeds with standard 18.00R33 (E4) tires. |
| Differential Ratio |
1.92:1 |
| Planetary Ratio |
4.80:1 |
| Total Reduction Ratio |
9.26:1 |
| Brake Surface – Front |
216 in² (1395 cm²) |
| Brake Surface – Rear |
6235 in² (40225 cm²) |
| Brake Standards |
ISO 3450:2011 |
| Note |
Target gross machine operating weight is 71 214 kg (157,000 lb). |
| Pump Flow – High Idle |
118 gal/min (448 l/min) |
| Relief Valve Setting – Raise |
2750 psi (18950 kPa) |
| Relief Valve Setting – Lower |
500 psi (3450 kPa) |
| Body Raise Time – High Idle |
7.5 s (7.5 s) |
| Body Lower Time – Float |
10 s (10 s) |
| Body Power Down – High Idle |
10 s (10 s) |
| Struck |
23.01 yd³ (17.6 m³) |
| Heaped (SAE 2:1)* |
32.9 yd³ (25.2 m³) |
| Struck |
23.01 yd³ (17.6 m³) |
| Heaped (SAE 2:1)* |
32.9 yd³ (25.2 m³) |
| Front Axle – Empty |
49 % (49 %) |
| Front Axle – Loaded |
34 % (34 %) |
| Rear Axle – Empty |
51 % (51 %) |
| Rear Axle – Loaded |
66 % (66 %) |
| Empty Loaded Cylinder Stroke Front |
9.2 in (234 mm) |
| Empty Loaded Cylinder Stroke Rear |
5.9 in (149 mm) |
| Rear axle – Oscillation |
8.9 ° (8.9 °) |
| Fuel Tank |
140 gal (US) (530 l) |
| Cooling System |
33 gal (US) (125 l) |
| Crankcase |
17 gal (US) (64 l) |
| Differential – Final Drives |
47 gal (US) (180 l) |
| Steering Tank |
14.5 gal (US) (55 l) |
| Steering System – Including Tank |
23 gal (US) (87 l) |
| Brake/Hoist Hydraulic Tank |
38 gal (US) (145 l) |
| Brake Hoist System |
60 gal (US) (227 l) |
| Torque Converter – Transmission System |
17 gal (US) (64 l) |
| DEF Tank |
6 gal (US) (21 l) |
| Steering Standards |
ISO 5010:2007 |
| Steer Angle |
40.5 ° (40.5 °) |
| Turning Diameter – Front |
57.7 ft (17.6 m) |
| Turning Circle – Clearance Diameter |
66.6 ft (20.3 m) |
| Note |
Target gross machine operating weight is 71 214 kg (157,000 lb). |
| Standard Tire |
18.00R33 (E4) |
| Note (1) |
Productive capabilities of the 770G 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 evaluates all job conditions and consults the tire manufacturer for proper tire selection. |
| ROPS Standards |
Rollover Protective Structure (ROPS) for cab offered by Caterpillar meets ISO 3471:2008 ROPS criteria. |
| FOPS Standards |
Falling Objects Protective Structure (FOPS) meets ISO 3449:2005 Level II FOPS criteria. |
| Sound Standards (1) |
Hearing protection may be needed when operating with open operator station & cab for extended periods or in noisy environment. |
| Sound Standards (2) |
Exterior sound pressure power level for standard machine measured according to tests specified in ISO 6395:2008 is 116 dB(A). |
| Sound Standards (3) |
Operator Equivalent Sound Pressure Level is 79 dB(A) & 74 dB(A) with EU sound suppression applied when ISO 6396:2008 is used. |
| Height – Top of ROPS |
12.7 ft (3857 mm) |
| Overall Body Length |
26.8 ft (8199 mm) |
| Inside Body Length |
18.5 ft (5635 mm) |
| Overall Length |
28.9 ft (8796 mm) |
| Wheel Base |
13 ft (3960 mm) |
| Rear Axle – Tail |
8.5 ft (2586 mm) |
| Ground Clearance |
1.6 ft (518 mm) |
| Dump Clearance |
1.7 ft (506 mm) |
| Loading Height – Empty |
10.3 ft (3147 mm) |
| Inside Body Depth – Maximum |
4.6 ft (1404 mm) |
| Overall Height – Body Raised |
27.1 ft (8255 mm) |
| Note (2) |
*ISO 6483:1980. |
| Operating Width |
15.7 ft (4780 mm) |
| Emissions |
Meets U.S. EPA Tier 4 and EU Stage V emission standards. |
| Note (2) |
*ISO 6483:1980. |
| Note (1) |
Contact your local Cat dealer for body recommendation. |
| Note (1) |
Contact your local Cat dealer for body recommendation. |
| Centerline Front Tire Width |
10.2 ft (3110 mm) |
| Engine Guard Clearance |
1.8 ft (335 mm) |
| Outside Body Width |
12.9 ft (3931 mm) |
| Inside Body Width |
11.9 ft (3627 mm) |
| Front Canopy Height |
13.5 ft (4114 mm) |
| Rear Axle – Clearance |
1.8 ft (548 mm) |
| Centerline of Rear Dual Tire Width |
8.3 ft (2536 mm) |
| Overall Tire Width |
12.1 ft (3693 mm) |
