Cat Open Bowl Scrapers: 651

Engine

Tractor Engine	— Cat C18 Cat C18

Tractor Engine

Flywheel Power - Tractor/Scraper	— 469kW (629 hp) 469kW (629 hp)
Net Power	— 469 kW/637 hp 469 kW/637 hp
Gross Power (SAE J1995)	— 637 hp 475 kW
Net Power (ISO 14396)	— 585 hp 436 kW
Net Power (SAE J1349/ISO 9249)	— 592 hp 436 kW
Bore	— 5.7 in 145 mm
Stroke	— 7.2 in 183 mm
Displacement	— 1105 in³ 18.1 l

Scraper Bowl

Transmission

Weights - Push-Pull

Dimensions

Width - Overall Machine	— 14.3 ft 4.36 m
Width - Tractor	— 12.3 ft 3.75 m
Width - Rear Tire Center Lines	— 9.21 ft 2.81 m
Width - Inside of Bowl	— 12.07 ft 3.68 m
Width - Outside Bowl - Shipping Width	— 12.98 ft 3.93 m
Height - Overall Shipping	— 15.29 ft 4.66 m
Height - Top of Cab	— 12.86 ft 3.92 m
Ground Clearance - Tractor	— 2.3 ft 0.7 m
Front of Tractor to Front Axle	— 14.93 ft 4.55 m
Axle to Vertical Hitch Pin	— 1.8 ft 0.55 m
Height - Scraper Blade Maximum	— 2.17 ft 0.66 m
Wheel Base	— 32.68 ft 9.96 m
Length - Overall Machine	— 58.96 ft 17.97 m
Rear Axle - Rear of Machine	— 8.07 ft 2.46 m

Steering

Service Refill Capacities - Tractor

Hydraulics

Bowl Cylinder Bore	— 7.08 in 180 mm
Bowl Cylinder Stroke	— 37.4 in 950 mm
Apron Cylinder Bore	— 7.08 in 180 mm
Apron Cylinder Stroke	— 29.92 in 759.5 mm
Steering Circuit (@ High Idle)	— 76.08 gal/min 288 l/min
Cushion Hitch Circuit	— 19.54 gal/min 74 l/min
Secondary Steering Circuit	— 14.52 gal/hr 55 l/hr
Relief Valve - Steering Circuit	— 1959 psi 13500 kPa
Relief Valve - Implement Circuit	— 1999 psi 13780 kPa
Compensator Settings - Cushion Hitch Circuit	— 3002 psi 20700 kPa

Service Refill Capacities - Scraper

Move more material with Advanced Productivity Electronic ControlSystem (APECS), which allows the machine to better utilize engine power and torque.
Set the desired top speed with Ground Speed Control, and the machine will find the gear that works best for the engine and the transmission, providing a lower fuel burn in speed reduced areas.
The Machine Speed Limit feature replaces Top Gear Selection.
Auto-Stall assists in quickly bringing the transmission to an operating temperature at start-up when working in colder climates.
Cat Payload Estimator for scrapers achieves on-the-go weighing to deliver optimal payload and jobsite efficiency.

Steer with less effort with the newly designed high-pressure steering system.
Reduce up to 14 individual operator commands per cycle with
Sequence Assist (optional attachment).
Enjoy interior improvements and a more ergonomic work
environment.
Intuitive, ergonomic controls with multifunction display keep
operators focused on their work.
Maintain desired cab temperature with automatic temperature
control.

Get in and out of the cab easier with the new powered access
ladder system.
Enhance the operator’s awareness of site surroundings with the
optional Work Area Vision System (WAVS).
Ground-level access to fuel fill and several maintenance points for
easier and safer service.
Seat belt indicator provides visual and audible alerts when the seat
belt is not in use.Wide brake shoes and brake drums improve brake performance and reduce brake and drum wear
Separate front and rear circuits. Secondary brakes engage automatically if service pressure drops
Parking Brake features a spring-applied, hydraulic pressure released mechanism that operates the service brakes

Cat Advanced Ride Management (ARM) seat suspension reduces end stroke movement of the load cylinder for a smoother ride.
Engine overspeed protection will automatically engage with no operator input when the machine is in eighth gear. The machine will assist in slowing the machine speed by canceling the throttle command and engaging the engine compression brake.

Access information anytime, anywhere with Vision Link®– use it to make informed decisions that boost productivity, lower costs, simplify maintenance, and improve safety and security on your jobsite.
Product Link™
collects machine data that can be viewed online
through web and mobile applications (optional attachment).

Standard Equipment

NOTE
- Standard and optional equipment may vary. Consult your Cat dealer for details.

Tractor Engine	Cat C18	Cat C18
Flywheel Power - Tractor/Scraper	469kW (629 hp)	469kW (629 hp)
Scraper Capacity - Heaped	44 yd³	33.6 m³