Machine models
Cat 770, 770 Bare Chassis, and 772 specifications
| Listing-entry count |
|---|
| 3 |
Short answer
Cat 770, 770 Bare Chassis, and 772: rigid rock trucks.
| Configuration | Documented field and quantity |
|---|---|
| 770 (07) |
|
| 770 Bare Chassis |
|
| 772 (07) |
|
| Publisher name | Source guide | Listing-entry count | Labels named by the source |
|---|---|---|---|
| Cat | 770, 770 Bare Chassis, and 772 | 3 | 770 (07), 770 Bare Chassis, and 772 (07) |
| Specification | 770 (07) | 772 (07) |
|---|---|---|
| Nominal Payload Class (100%) | 41.2 Sh Ton | 51.6 ton (US) |
| Top Speed - Loaded | 45.8 mph | 49.2 mph |
| Body Capacity - SAE 2:1 | 32.9 yd³ / 25.2 m³ | 40.8 yd³ / 31.2 m³ |
| Specification | 770 (07) |
|---|---|
| Target Payload (100%) | 41.2 Sh Ton / 38 ton (US) |
| Maximum Working Payload (110%) | 46.8 ton (US) |
| Maximum Allowable Payload (120%)* | 51 ton (US) |
| Top Speed - Loaded* | 45.8 mph |
| Specification | 770 Bare Chassis |
|---|---|
| Nominal Water Tank Capacity | 9,000 gal (US) |
| Specification | 772 (07) |
|---|---|
| Maximum Payload Class (110%) | 56.7 ton (US) / 51.4 ton (US) |
| Not to Exceed Payload (120%) | 61.9 ton (US) / 56.1 ton (US) |
| Target Payload Capacity | 51.6 ton (US) / 46.8 ton (US) |
| Body Capacity (SAE 2:1)** | 40.8 yd³ / 31.2 m³ |
| Specification | 770 (07) | 770 Bare Chassis | 772 (07) |
|---|---|---|---|
| Engine Model | Cat® C15 | Cat® C15 | Cat® C18 |
| Rated Engine Speed | 1700 r/min | 1700 r/min | 1700 r/min |
| Number of Cylinders | 6 | 6 | 6 |
| Bore | 5.4 in | 5.4 in | 5.7 in |
| Stroke | 6.7 in | 6.7 in | 7.2 in |
| Displacement | 927.6 in³ | 927.6 in³ | 1,105 in³ |
| Specification | 770 (07) | 772 (07) |
|---|---|---|
| Gross Power - SAE J1995:2014 | 515 hp | 605 hp |
| Net Power - SAE J1349:2011 | 477 hp | 550 hp |
| Net Power - ISO 9249 | 477 hp | 550 hp |
| Engine Power - ISO 14396 | 508 hp | 598 hp |
| Specification | 770 (07) |
|---|---|
| Net Power - 80/1269/EEC | 489 hp |
| Net Power - ISO 14396 | 508 hp |
| Emissions | Meets US EPA Tier 4 and EU Stage V emission standards |
| Specification | 770 Bare Chassis |
|---|---|
| Gross Power - SAE J1995 | 515 hp |
| Rated Net Power - SAE J1349 | 477 hp |
| Specification | 770 (07) | 772 (07) |
|---|---|---|
| Pump Flow - High Idle | 112.2 gpm | 112 gpm |
| Relief Valve Setting - Raise | 2,750 psi | 2,750 psi |
| Relief Valve Setting - Lower | 500 psi | 500 psi |
| Body Power Down - High Idle | 8 seconds (approx.) | 10 s |
| Body Raise Time - High Idle | 7.5 seconds (approx.) | 8 s |
| Body Lower Time - Float | 10 s | 10 s |
| Specification | 770 (07) | 772 (07) |
|---|---|---|
| Struck | 23.01 yd³ / 17.6 m³ | 31.2 yd³ / 23.9 m³ |
| Specification | 770 (07) |
|---|---|
| Heaped (SAE 2:1)* | 32.9 yd³ / 25.2 m³ |
| Specification | 772 (07) |
|---|---|
| Heaped 2:1 (SAE) | 40.8 yd³ / 31.2 m³ |
| Specification | 770 (07) | 772 (07) |
|---|---|---|
| Front Axle - Empty | 52 % | 51.4 % |
| Front Axle - Loaded | 34 % | 34.2 % |
| Rear Axle - Empty | 48 % | 48.6 % |
| Rear Axle - Loaded | 66 % | 65.8 % |
| Specification | 770 (07) | 772 (07) |
|---|---|---|
| Empty Loaded Cylinder Stroke Front | 9.2 in | 9.2 in |
| Empty Loaded Cylinder Stroke Rear | 5.9 in | 5.8 in |
| Rear axle - Oscillation | 8.9 ° | 8.9 ° |
| Specification | 770 (07) |
|---|---|
| Sound Standards | 78.5 dB(A) |
| Specification | 770 (07) | 772 (07) |
|---|---|---|
| Sound Standards (1) | Hearing protection may be needed when operating with open operator station & cab for extended periods or in noisy environment | Operator Sound Level (ISO 6396:2008) 73 dB(A) Machine Sound Level (ISO 6395:2008) 114 dB(A) |
| Sound Standards (2) | Hearing protection may be needed when the machine is operated with a cab that is not properly maintained or when the doors or windows are open for extended periods or in a noisy environment | • The operator sound pressure level is measured according to the test procedures and conditions specified in ISO 6396:2008 for the standard machine configuration. The measurement was conducted at 80% of the maximum engine cooling fan speed |
| Sound Standards (3) | The machine sound power level is measured according to the test procedures and conditions specified in ISO 6395:2008 for the standard machine configuration. The measurement was conducted at 80% of the maximum engine cooling fan speed | • The machine sound power level is measured according to the test procedures and conditions specified in ISO 6395:2008 for the standard machine configuration. The measurement was conducted at 80% of the maximum engine cooling fan speed • Hearing protection may be needed when the machine is operated with a cab that is not properly maintained or when the doors or windows are open for extended periods or in a noisy environment |
| Specification | 770 (07) | 772 (07) |
|---|---|---|
| Fuel Tank | 210 gal (US) | 140 gal (US) |
| Steering Tank | 9.5 gal (US) | 14.5 gal (US) |
| DEF Tank | 6 gal (US) | 6 gal (US) |
| Specification | 770 (07) | 770 Bare Chassis | 772 (07) |
|---|---|---|---|
| Cooling System | 43.3 gal (US) | 33 gal (US) | 33 gal (US) |
| Crankcase | 24 gal (US) | 17 gal (US) | 17 gal (US) |
| Differential - Final Drives | 37 gal (US) | 47 gal (US) | 47 gal (US) |
| Steering System - Including Tank | 14 gal (US) | 23 gal (US) | 23 gal (US) |
| Brake/Hoist Hydraulic Tank | 46.5 gal (US) | 38 gal (US) | 38 gal (US) |
| Brake Hoist System | 85 gal (US) | 60 gal (US) | 60 gal (US) |
| Torque Converter - Transmission System | 18.5 gal (US) | 17 gal (US) | 17 gal (US) |
| Specification | 770 Bare Chassis |
|---|---|
| Fuel Tank Capacity | 140 gal (US) |
| Specification | 770 (07) | 770 Bare Chassis | 772 (07) |
|---|---|---|---|
| Steering Standards | ISO 5010:2019 | ISO 5010:2007 | ISO 5010:2007 |
| Steer Angle | 40.5 ° | 40.5 ° | 40.5 ° |
| Turning Circle - Clearance Diameter | 66.6 ft | 66.6 ft | 66.6 ft |
| Specification | 770 (07) | 772 (07) |
|---|---|---|
| Turning Diameter - Front | 57.7 ft | 57.7 ft |
| Specification | 770 Bare Chassis |
|---|---|
| Turning Diameter | 57.7 ft |
| Specification | 770 (07) | 772 (07) |
|---|---|---|
| Standard Tire | 18.00R33 (E4) | 21.00R33 (E4) |
| Specification | 770 (07) | 772 (07) |
|---|---|---|
| ROPS Standards | Rollover protective structure (ROPS) for cab offered by Caterpillar meets ISO 3471:2008 for operator and ISO 13459:2012 for trainer ROPS criteria | ROPS (Rollover Protective Structure) for cab offered by Caterpillar meets ISO 3471:2008 ROPS criteria |
| FOPS Standards | Falling Objects Protective Structure (FOPS) meets ISO 3449:2005 Level II for operator and ISO 13459:2012 Level II for trainer FOPS criteria | FOPS (Falling Objects Protective Structure) meets ISO 3449:2005 Level II FOPS criteria |
| Specification | 770 Bare Chassis |
|---|---|
| Tractor ROPS | 77,430 lb |
| Specification | 770 (07) |
|---|---|
| Target Gross Machine Operating Weight | 157,000 lb |
| Specification | 770 (07) | 772 (07) |
|---|---|---|
| Chassis Weight | 55,948 lb | 59,223 lb |
| Body Weight | 17,447 lb | 18,205 lb |
| Specification | 772 (07) |
|---|---|
| Target Gross Machine Weight | 181,000 lb |
| Specification | 770 (07) | 770 Bare Chassis | 772 (07) |
|---|---|---|---|
| Forward - 1 | 7.4 mph | 7.4 mph | 8 mph |
| Forward - 2 | 10.1 mph | 10.1 mph | 10.9 mph |
| Forward - 3 | 13.8 mph | 13.8 mph | 14.8 mph |
| Forward - 4 | 18.5 mph | 18.5 mph | 19.8 mph |
| Forward - 5 | 25.1 mph | 25.1 mph | 26.9 mph |
| Forward - 6 | 33.8 mph | 33.8 mph | 36.3 mph |
| Forward - 7 | 45.9 mph | 45.8 mph | 49.2 mph |
| Reverse | 9.7 mph | 8.8 mph | 10.4 mph |
| Specification | 770 (07) | 772 (07) |
|---|---|---|
| Differential Ratio | 1.92:1 | 2.74:1 |
| Planetary Ratio | 4.80:1 | 4.80:1 |
| Total Reduction Ratio | 9.216:1 | 13.14:1 |
| Specification | 770 (07) | 770 Bare Chassis | 772 (07) |
|---|---|---|---|
| Brake Surface - Front | 216 in² / 1395 cm² | 216 in² / 1395 cm² | 216 in² / 1395 cm² |
| Brake Surface - Rear | 6,235 in² / 40225 cm² | 6,235 in² / 40225 cm² | 7,794 in² / 50281 cm² |
| Specification | 770 (07) | 772 (07) |
|---|---|---|
| Brake Standards | ISO 3450:2011 | ISO 3450:2011 |
| Specification | 770 (07) | 772 (07) |
|---|---|---|
| Height - Top of ROPS | 12.7 ft | 12.8 ft |
| Overall Body Length | 26.8 ft | 26.8 ft |
| Inside Body Length | 18.5 ft | 19 ft |
| Overall Length | 28.9 ft | 28.9 ft |
| Wheel Base | 13 ft | 13 ft |
| Rear Axle - Tail | 8.5 ft | 9.5 ft |
| Ground Clearance | 1.6 ft | 2 ft |
| Dump Clearance | 1.7 ft | 1.8 ft |
| Loading Height - Empty | 10.3 ft | 11.7 ft |
| Inside Body Depth - Maximum | 4.6 ft | 5.7 ft |
| Overall Height - Body Raised | 27.1 ft | 27.1 ft |
| Operating Width | 15.7 ft | 15.7 ft |
| Centerline Front Tire Width | 10.2 ft | 10.4 ft |
| Engine Guard Clearance | 1.1 ft | 2 ft |
| Outside Body Width | 12.9 ft | 12.9 ft |
| Inside Body Width | 11.9 ft | 11.9 ft |
| Front Canopy Height | 13.5 ft | 13.6 ft |
| Rear Axle - Clearance | 1.8 ft | 1.9 ft |
| Centerline of Rear Dual Tire Width | 8.3 ft | 8.7 ft |
| Overall Tire Width | 12.1 ft | 12.9 ft |
| Specification | 770 Bare Chassis |
|---|---|
| LRC Bare Chassis Weight without Hoist | 54,357 lb |
| LRC Bare Chassis Weight with Hoist | 55,166 lb |
| LRC Gross Vehicle Weight (Target) with Hoist | 157,000 lb |
| LRC Gross Vehicle Weight (Target) without Hoist | 157,000 lb |
| HRC Bare Chassis Weight without Hoist | 55,510 lb |
| HRC Bare Chassis Weight with Hoist | 56,319 lb |
| HRC Gross Vehicle Weight (Target) with Hoist | 157,000 lb |
| HRC Gross Vehicle Weight (Target) without Hoist | 157,000 lb |
| Specification | 772 (07) |
|---|---|
| Struck | 31.3 yd³ / 23.9 m³ |
| Heaped 2:1 (SAE) | 40.9 yd³ / 31.3 m³ |
| Source guide | Differing-field count reported |
|---|---|
| 770, 770 Bare Chassis, and 772 | 110 |
| Figure | 770 (07) | 770 Bare Chassis | 772 (07) |
|---|---|---|---|
| Fuel tank per engine horsepower | 0.44 gal | 0.27 gal | 0.25 gal |
History and service record of 770, 770 Bare Chassis, and 772
- Where the 770 and 772 sit. Caterpillar says its off-road trucks have carried a legacy of rugged performance in mining and heavy construction since it introduced the 769 in 1963, and that the 772 builds on that heritage with updated traction control, flexible fuel-saving strategies, automotive-quality shifting, reduced noise and cab updates. 772 off-highway truck, Caterpillar.
- The 772 name dates from 1971. A dealer's product page says the Cat 772 off-highway truck was launched in 1971 and has worked in mines and quarries for more than 40 years. Off-highway trucks CAT 772G, Tractafric Equipment.
- Loading partners for the 770. Caterpillar says the 770 is built for construction and quarry hauling and pairs with its 986, 987 or 988 wheel loaders and 374 hydraulic excavator to move material safely and dependably. 770 off-highway truck, Caterpillar.
- Brake design. Cat's 770 literature says each of the two oil-cooled disc brakes on the rear axle has 24 brake discs, and a new brake pack moves braking force to the outer edge of the disc for longer life. 770 Off-Highway Truck brochure, Caterpillar.
- Castings and hoist mounts. The 770 uses a drop-tube casting with two forged steel hoist-cylinder mountings like the 773, and a volcano casting holding the center tube with thicker walls for durability. 770 Off-Highway Truck brochure, Caterpillar.
- Full hydraulic brakes and lockout. The brochure describes a full hydraulic brake system instead of air-over-hydraulic, an all-new transmission, hoist and steering lockout mode, and a fuse and relay layout that allows up to 50 percent faster servicing. 770 Off-Highway Truck brochure, Caterpillar.
- 770G changes. A 770G product brochure says the G Series added new transmission controls with automotive-quality shifting, an updated traction control system, automatic retarding control as standard, Auto Neutral Idle while waiting for the loader or crusher, and full power at higher altitudes. 770G product brochure, Caterpillar via Cat dealer.
- 770G emissions and brakes. The 770G adds DEF to a small tank next to the fuel tank, integrates the torque converter into the transmission housing, and has service brakes designed to hold the truck on 20 percent slopes. 770G product brochure, Caterpillar via Cat dealer.
- Messenger display. Cat Messenger is standard on the 770, showing real-time machine performance and operating data along with trip, maintenance and diagnostic information on an LCD display. 770 Off-Highway Truck brochure, Caterpillar.
| Forum index | Equipment class queried | Names in the search | Matching titles |
|---|---|---|---|
| Heavy Equipment Forums | rigid rock truck | Cat and the 770 line that the 770, 770 Bare Chassis, 772 belongs to (no title names the exact model) | 10 |
| Title topic | Titles |
|---|---|
| brakes and steering | 3 |
| Topic in the title | Threads | Share of matching threads |
|---|---|---|
| brakes and steering | 3 | 30% |
- What Does Mean Of Event Code E2344 2 On CAT 770g Dumper (Heavy Equipment Forums, 2026-08-19)
- CAT 772 ECM Loss Of Signal (Heavy Equipment Forums, 2025-10-24)
- 770g 772g CAT Haul Truck Brakes (Heavy Equipment Forums, 2024-10-19)
- CAT 770 Rock Truck (Heavy Equipment Forums, 2013-10-23)
| Observation date | Listing source | Equipment search | Listings |
|---|---|---|---|
| 2026-09-24 | MachineryTrader | Cat rigid rock truck | 40 |
| Model | Listed | Model years | Lowest asking | Highest asking | Median asking | Median hours |
|---|---|---|---|---|---|---|
| 770 | 20 | 2007 to 2026 | $94,500 | $570,000 | $175,000 | 17,524 |
| 772 | 20 | 2008 to 2022 | $199,264 | $424,714 | $224,883 | 23,300 |
| Search date | Database | Names queried | Search result |
|---|---|---|---|
| 2026-09-24 | U.S. Consumer Product Safety Commission | Cat together with the rigid rock truck 770, 770 Bare Chassis, 772 | No matching recall in this search |
| Evidence class | Document, classification and recorded date |
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Cat 770, 770 Bare Chassis, and 772: Configuration records
770 (07)
| Specification | Source figure |
|---|---|
| Dimensions and weight | |
| Overall Length | 28.9 ft |
| Rear Axle - Tail | 8.5 ft |
| Rear Axle - Clearance | 1.8 ft |
| Engine | |
| Displacement | 927.6 in³ |
| Engine Model | Cat® C15 |
| Rated Engine Speed | 1700 r/min |
| Gross Power - SAE J1995:2014 | 515 hp |
| Net Power - SAE J1349:2011 | 477 hp |
| Net Power - ISO 9249 | 477 hp |
| Net Power - 80/1269/EEC | 489 hp |
| Engine Power - ISO 14396 | 508 hp |
| Net Power - ISO 14396 | 508 hp |
| Number of Cylinders | 6 |
| Bore | 5.4 in |
| Stroke | 6.7 in |
| Emissions | Meets US EPA Tier 4 and EU Stage V emission standards |
| Transmission and speeds | |
| Forward - 1 | 7.4 mph |
| Forward - 2 | 10.1 mph |
| Forward - 3 | 13.8 mph |
| Forward - 4 | 18.5 mph |
| Forward - 5 | 25.1 mph |
| Forward - 6 | 33.8 mph |
| Forward - 7 | 45.9 mph |
| Reverse | 9.7 mph |
| Tires | |
| Standard Tire | 18.00R33 (E4) |
| Body Hoists | |
| Pump Flow - High Idle | 112.2 gpm |
| Relief Valve Setting - Raise | 2,750 psi |
| Relief Valve Setting - Lower | 500 psi |
| Body Power Down - High Idle | 8 seconds (approx.) |
| Body Raise Time - High Idle | 7.5 seconds (approx.) |
| Body Lower Time - Float | 10 s |
| Final Drives | |
| Differential Ratio | 1.92:1 |
| Planetary Ratio | 4.80:1 |
| Total Reduction Ratio | 9.216:1 |
| Operating Specifications | |
| Nominal Payload Class (100%) | 41.2 Sh Ton |
| Top Speed - Loaded | 45.8 mph |
| Target Payload (100%) | 41.2 Sh Ton / 38 ton (US) |
| Body Capacity - SAE 2:1 | 32.9 yd³ / 25.2 m³ |
| Maximum Working Payload (110%) | 46.8 ton (US) |
| Maximum Allowable Payload (120%)* | 51 ton (US) |
| Top Speed - Loaded* | 45.8 mph |
| Service Refill Capacities | |
| Fuel Tank | 210 gal (US) |
| Cooling System | 43.3 gal (US) |
| Crankcase | 24 gal (US) |
| Differential - Final Drives | 37 gal (US) |
| Steering Tank | 9.5 gal (US) |
| Steering System - Including Tank | 14 gal (US) |
| Brake/Hoist Hydraulic Tank | 46.5 gal (US) |
| Brake Hoist System | 85 gal (US) |
| Torque Converter - Transmission System | 18.5 gal (US) |
| DEF Tank | 6 gal (US) |
| Weight Distributions Approximate | |
| Front Axle - Empty | 52 % |
| Front Axle - Loaded | 34 % |
| Rear Axle - Empty | 48 % |
| Rear Axle - Loaded | 66 % |
| Weights Approximate | |
| Target Gross Machine Operating Weight | 157,000 lb |
| Chassis Weight | 55,948 lb |
| Body Weight | 17,447 lb |
| Suspension | |
| Empty Loaded Cylinder Stroke Front | 9.2 in |
| Empty Loaded Cylinder Stroke Rear | 5.9 in |
| Rear axle - Oscillation | 8.9 ° |
| Sound | |
| Sound Standards | 78.5 dB(A) |
| 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) | Hearing protection may be needed when the machine is operated with a cab that is not properly maintained or when the doors or windows are open for extended periods or in a noisy environment |
| Sound Standards (3) | The machine sound power level is measured according to the test procedures and conditions specified in ISO 6395:2008 for the standard machine configuration. The measurement was conducted at 80% of the maximum engine cooling fan speed |
| Steering | |
| Steering Standards | ISO 5010:2019 |
| Turning Circle - Clearance Diameter | 66.6 ft |
| ROPS | |
| ROPS Standards | Rollover protective structure (ROPS) for cab offered by Caterpillar meets ISO 3471:2008 for operator and ISO 13459:2012 for trainer ROPS criteria |
| FOPS Standards | Falling Objects Protective Structure (FOPS) meets ISO 3449:2005 Level II for operator and ISO 13459:2012 Level II for trainer FOPS criteria |
| Brakes | |
| Brake Surface - Front | 216 in² / 1395 cm² |
| Brake Surface - Rear | 6,235 in² / 40225 cm² |
| Brake Standards | ISO 3450:2011 |
| Additional specifications | |
| Ground Clearance | 1.6 ft |
| Height - Top of ROPS | 12.7 ft |
| Overall Body Length | 26.8 ft |
| Inside Body Length | 18.5 ft |
| Wheel Base | 13 ft |
| Dump Clearance | 1.7 ft |
| Loading Height - Empty | 10.3 ft |
| Inside Body Depth - Maximum | 4.6 ft |
| Overall Height - Body Raised | 27.1 ft |
| Operating Width | 15.7 ft |
| Centerline Front Tire Width | 10.2 ft |
| Engine Guard Clearance | 1.1 ft |
| Outside Body Width | 12.9 ft |
| Inside Body Width | 11.9 ft |
| Front Canopy Height | 13.5 ft |
| Centerline of Rear Dual Tire Width | 8.3 ft |
| Overall Tire Width | 12.1 ft |
| Struck | 23.01 yd³ / 17.6 m³ |
| Heaped (SAE 2:1)* | 32.9 yd³ / 25.2 m³ |
| Steer Angle | 40.5 ° |
| Turning Diameter - Front | 57.7 ft |
770 Bare Chassis
| Specification | Source figure |
|---|---|
| Engine | |
| Displacement | 927.6 in³ |
| Engine Model | Cat® C15 |
| Rated Engine Speed | 1700 r/min |
| Number of Cylinders | 6 |
| Bore | 5.4 in |
| Stroke | 6.7 in |
| Gross Power - SAE J1995 | 515 hp |
| Rated Net Power - SAE J1349 | 477 hp |
| Transmission and speeds | |
| Forward - 1 | 7.4 mph |
| Forward - 2 | 10.1 mph |
| Forward - 3 | 13.8 mph |
| Forward - 4 | 18.5 mph |
| Forward - 5 | 25.1 mph |
| Forward - 6 | 33.8 mph |
| Forward - 7 | 45.8 mph |
| Reverse | 8.8 mph |
| Weights | |
| LRC Bare Chassis Weight without Hoist | 54,357 lb |
| LRC Bare Chassis Weight with Hoist | 55,166 lb |
| LRC Gross Vehicle Weight (Target) with Hoist | 157,000 lb |
| LRC Gross Vehicle Weight (Target) without Hoist | 157,000 lb |
| HRC Bare Chassis Weight without Hoist | 55,510 lb |
| HRC Bare Chassis Weight with Hoist | 56,319 lb |
| HRC Gross Vehicle Weight (Target) with Hoist | 157,000 lb |
| HRC Gross Vehicle Weight (Target) without Hoist | 157,000 lb |
| Operating Specifications | |
| Nominal Water Tank Capacity | 9,000 gal (US) |
| Service Refill Capacities | |
| Cooling System | 33 gal (US) |
| Crankcase | 17 gal (US) |
| Differential - Final Drives | 47 gal (US) |
| Steering System - Including Tank | 23 gal (US) |
| Brake/Hoist Hydraulic Tank | 38 gal (US) |
| Brake Hoist System | 60 gal (US) |
| Torque Converter - Transmission System | 17 gal (US) |
| Fuel Tank Capacity | 140 gal (US) |
| Steering | |
| Steering Standards | ISO 5010:2007 |
| Turning Circle - Clearance Diameter | 66.6 ft |
| Turning Diameter | 57.7 ft |
| ROPS | |
| Tractor ROPS | 77,430 lb |
| Brakes | |
| Brake Surface - Front | 216 in² / 1395 cm² |
| Brake Surface - Rear | 6,235 in² / 40225 cm² |
| Additional specifications | |
| Steer Angle | 40.5 ° |
772 (07)
| Specification | Source figure |
|---|---|
| Dimensions and weight | |
| Overall Length | 28.9 ft |
| Rear Axle - Tail | 9.5 ft |
| Rear Axle - Clearance | 1.9 ft |
| Engine | |
| Displacement | 1,105 in³ |
| Engine Model | Cat® C18 |
| Rated Engine Speed | 1700 r/min |
| Gross Power - SAE J1995:2014 | 605 hp |
| Net Power - SAE J1349:2011 | 550 hp |
| Net Power - ISO 9249 | 550 hp |
| Engine Power - ISO 14396 | 598 hp |
| Number of Cylinders | 6 |
| Bore | 5.7 in |
| Stroke | 7.2 in |
| Transmission and speeds | |
| Forward - 1 | 8 mph |
| Forward - 2 | 10.9 mph |
| Forward - 3 | 14.8 mph |
| Forward - 4 | 19.8 mph |
| Forward - 5 | 26.9 mph |
| Forward - 6 | 36.3 mph |
| Forward - 7 | 49.2 mph |
| Reverse | 10.4 mph |
| Tires | |
| Standard Tire | 21.00R33 (E4) |
| Body Hoists | |
| Pump Flow - High Idle | 112 gpm |
| Relief Valve Setting - Raise | 2,750 psi |
| Relief Valve Setting - Lower | 500 psi |
| Body Power Down - High Idle | 10 s |
| Body Raise Time - High Idle | 8 s |
| Body Lower Time - Float | 10 s |
| Final Drives | |
| Differential Ratio | 2.74:1 |
| Planetary Ratio | 4.80:1 |
| Total Reduction Ratio | 13.14:1 |
| Operating Specifications | |
| Nominal Payload Class (100%) | 51.6 ton (US) |
| Top Speed - Loaded | 49.2 mph |
| Body Capacity - SAE 2:1 | 40.8 yd³ / 31.2 m³ |
| Maximum Payload Class (110%) | 56.7 ton (US) / 51.4 ton (US) |
| Not to Exceed Payload (120%) | 61.9 ton (US) / 56.1 ton (US) |
| Target Payload Capacity | 51.6 ton (US) / 46.8 ton (US) |
| Body Capacity (SAE 2:1)** | 40.8 yd³ / 31.2 m³ |
| Service Refill Capacities | |
| Fuel Tank | 140 gal (US) |
| Cooling System | 33 gal (US) |
| Crankcase | 17 gal (US) |
| Differential - Final Drives | 47 gal (US) |
| Steering Tank | 14.5 gal (US) |
| Steering System - Including Tank | 23 gal (US) |
| Brake/Hoist Hydraulic Tank | 38 gal (US) |
| Brake Hoist System | 60 gal (US) |
| Torque Converter - Transmission System | 17 gal (US) |
| DEF Tank | 6 gal (US) |
| Weight Distributions Approximate | |
| Front Axle - Empty | 51.4 % |
| Front Axle - Loaded | 34.2 % |
| Rear Axle - Empty | 48.6 % |
| Rear Axle - Loaded | 65.8 % |
| Weights Approximate | |
| Chassis Weight | 59,223 lb |
| Body Weight | 18,205 lb |
| Target Gross Machine Weight | 181,000 lb |
| Suspension | |
| Empty Loaded Cylinder Stroke Front | 9.2 in |
| Empty Loaded Cylinder Stroke Rear | 5.8 in |
| Rear axle - Oscillation | 8.9 ° |
| Sound | |
| Sound Standards (1) | Operator Sound Level (ISO 6396:2008) 73 dB(A) Machine Sound Level (ISO 6395:2008) 114 dB(A) |
| Sound Standards (2) | • The operator sound pressure level is measured according to the test procedures and conditions specified in ISO 6396:2008 for the standard machine configuration. The measurement was conducted at 80% of the maximum engine cooling fan speed |
| Sound Standards (3) | • The machine sound power level is measured according to the test procedures and conditions specified in ISO 6395:2008 for the standard machine configuration. The measurement was conducted at 80% of the maximum engine cooling fan speed • Hearing protection may be needed when the machine is operated with a cab that is not properly maintained or when the doors or windows are open for extended periods or in a noisy environment |
| Steering | |
| Steering Standards | ISO 5010:2007 |
| Turning Circle - Clearance Diameter | 66.6 ft |
| ROPS | |
| ROPS Standards | ROPS (Rollover Protective Structure) for cab offered by Caterpillar meets ISO 3471:2008 ROPS criteria |
| FOPS Standards | FOPS (Falling Objects Protective Structure) meets ISO 3449:2005 Level II FOPS criteria |
| Brakes | |
| Brake Surface - Front | 216 in² / 1395 cm² |
| Brake Surface - Rear | 7,794 in² / 50281 cm² |
| Brake Standards | ISO 3450:2011 |
| Additional specifications | |
| Ground Clearance | 2 ft |
| Height - Top of ROPS | 12.8 ft |
| Overall Body Length | 26.8 ft |
| Inside Body Length | 19 ft |
| Wheel Base | 13 ft |
| Dump Clearance | 1.8 ft |
| Loading Height - Empty | 11.7 ft |
| Inside Body Depth - Maximum | 5.7 ft |
| Overall Height - Body Raised | 27.1 ft |
| Operating Width | 15.7 ft |
| Centerline Front Tire Width | 10.4 ft |
| Engine Guard Clearance | 2 ft |
| Outside Body Width | 12.9 ft |
| Inside Body Width | 11.9 ft |
| Front Canopy Height | 13.6 ft |
| Centerline of Rear Dual Tire Width | 8.7 ft |
| Overall Tire Width | 12.9 ft |
| Struck | 31.2 yd³ / 23.9 m³ |
| Heaped 2:1 (SAE) | 40.8 yd³ / 31.2 m³ |
| Steer Angle | 40.5 ° |
| Turning Diameter - Front | 57.7 ft |
Compare Cat 770 (07), 770 Bare Chassis, 772 (07)
| Specification | 770 (07) | 770 Bare Chassis | 772 (07) |
|---|---|---|---|
| Engine Model | Cat® C15 | Cat® C15 | Cat® C18 |
| Rated Engine Speed | 1700 r/min | 1700 r/min | 1700 r/min |
| Number of Cylinders | 6 | 6 | 6 |
| Bore | 5.4 in | 5.4 in | 5.7 in |
| Stroke | 6.7 in | 6.7 in | 7.2 in |
| Displacement | 927.6 in³ | 927.6 in³ | 1,105 in³ |
| Specification | 770 (07) | 770 Bare Chassis | 772 (07) |
|---|---|---|---|
| Cooling System | 43.3 gal (US) | 33 gal (US) | 33 gal (US) |
| Crankcase | 24 gal (US) | 17 gal (US) | 17 gal (US) |
| Differential - Final Drives | 37 gal (US) | 47 gal (US) | 47 gal (US) |
| Steering System - Including Tank | 14 gal (US) | 23 gal (US) | 23 gal (US) |
| Brake/Hoist Hydraulic Tank | 46.5 gal (US) | 38 gal (US) | 38 gal (US) |
| Brake Hoist System | 85 gal (US) | 60 gal (US) | 60 gal (US) |
| Torque Converter - Transmission System | 18.5 gal (US) | 17 gal (US) | 17 gal (US) |
| Specification | 770 (07) | 770 Bare Chassis | 772 (07) |
|---|---|---|---|
| Steering Standards | ISO 5010:2019 | ISO 5010:2007 | ISO 5010:2007 |
| Steer Angle | 40.5 ° | 40.5 ° | 40.5 ° |
| Turning Circle - Clearance Diameter | 66.6 ft | 66.6 ft | 66.6 ft |
| Specification | 770 (07) | 770 Bare Chassis | 772 (07) |
|---|---|---|---|
| Forward - 1 | 7.4 mph | 7.4 mph | 8 mph |
| Forward - 2 | 10.1 mph | 10.1 mph | 10.9 mph |
| Forward - 3 | 13.8 mph | 13.8 mph | 14.8 mph |
| Forward - 4 | 18.5 mph | 18.5 mph | 19.8 mph |
| Forward - 5 | 25.1 mph | 25.1 mph | 26.9 mph |
| Forward - 6 | 33.8 mph | 33.8 mph | 36.3 mph |
| Forward - 7 | 45.9 mph | 45.8 mph | 49.2 mph |
| Reverse | 9.7 mph | 8.8 mph | 10.4 mph |
| Specification | 770 (07) | 770 Bare Chassis | 772 (07) |
|---|---|---|---|
| Brake Surface - Front | 216 in² / 1395 cm² | 216 in² / 1395 cm² | 216 in² / 1395 cm² |
| Brake Surface - Rear | 6,235 in² / 40225 cm² | 6,235 in² / 40225 cm² | 7,794 in² / 50281 cm² |
More in Cat: 769D, 769C/773B, 772 Bare Chassis.