657 Wheel Tractor-Scraper

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Description

Technical Specifications

Benefits and Features

Equipment

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Caterpillar offers Wheel Tractor-Scrapers designed exclusively for your coal stockpiling and retrieval needs. The Caterpillar® 657 Coal Bowl Scrapers can construct and maintain your coal stockpiles, as well as haul loads to your inlet supply system to meet the burn requirements of the plant.

Tractor Engine
Flywheel Power - Tractor/Scraper	469kW (629 hp) / 353 kW (473 hp)
Net Power	469 kW/637 hp
Gross Power (SAE J1995)	637 hp
Net Power (ISO 14396)	637 hp
Bore	5.7 in
Stroke	7.2 in
Displacement	1105 in³
Net Power (SAE J1349/ISO 9249)	592 hp
Engine
Tractor Engine	Cat® C18
Scraper Engine	Cat® C15
Scraper Bowl
Scraper Capacity - Heaped	73 yd³
Rated Load	104058 lb
Capacity - Struck	59 yd³
Depth of Cut - Maximum	16.4 in
Width - Cut - To Router Bits	12.5 ft
Ground Clearance - Maximum	2.3 ft
Depth of Spread - Maximum	26 in
Apron Opening	92 in
Apron Closure Force	39200 lb
Hyd. Penetration Force - 657G	121000 lb
Transmission
Top Speed - Loaded	33 mile/h
1 Forward	3.5 mile/h
2 Forward	6.5 mile/h
3 Forward	7.8 mile/h
4 Forward	10.6 mile/h
5 Forward	14.2 mile/h
6 Forward	19.2 mile/h
7 Forward	25.7 mile/h
8 Forward	34.9 mile/h
Reverse	6.7 mile/h
Scraper Engine
Net Power	353 kW/447 hp
Gross Power (SAE J1995)	481 hp
Net Power (ISO 14396)	480 hp
Bore	5.4 in
Stroke	6.75 in
Displacement	928 in³
Net Power (SAE J1349/ISO 9249)	452 hp
Weights - Push-Pull
Total Shipping	160505 lb
Tractor Shipping	93635 lb
Scraper Shipping	64068 lb
Total Operating - Empty	164244 lb
Front Axle	93842 lb
Rear Axle	66663 lb
Total Operating - Loaded	268302 lb
Front Axle - Loaded	134165 lb
Rear Axle - Loaded	130340 lb
Dimensions
Width - Overall Machine	14.3 ft
Width - Tractor	12.3 ft
Width - Rear Tire Center Lines	9.23 ft
Width - Inside of Bowl	12.07 ft
Width - Outside Bowl - Shipping Width	12.98 ft
Height - Overall Shipping	15.27 ft
Height - Top of Cab	12.86 ft
Ground Clearance - Tractor	2.36 ft
Front of Tractor to Front Axle	12.72 ft
Axle to Vertical Hitch Pin	1.8 ft
Height - Scraper Blade Maximum	2.17 ft
Wheel Base	32.68 ft
Length - Overall Machine	58.96 ft
Rear Axle - Rear of Machine	8.07 ft
Steering
Width - 180° Turn - Right	45.4 ft
Width - 180° Turn - Left	47.57 ft
Steering Angle - Right	90
Steering Angle - Left	85
Service Refill Capacities - Tractor
Crankcase	13.7 gal (US)
Transmission	35.9 gal (US)
Differential	36 gal (US)
Cooling System	23.4 gal (US)
Hydraulic Reservoir	39.6 gal (US)
Windshield Washer	0.5 gal (US)
Final Drive - Each	6 gal (US)
Hydraulics
Bowl Cylinder Bore	7.08 in
Bowl Cylinder Stroke	37.4 in
Apron Cylinder Bore	7.08 in
Apron Cylinder Stroke	29.92 in
Steering Circuit (@ High Idle)	76.08 gpm
Cushion Hitch Circuit	19.54 gpm
Secondary Steering Circuit	14.52 gal/hr
Relief Valve - Steering Circuit	1959 psi
Relief Valve - Implement Circuit	1999 psi
Compensator Settings - Cushion Hitch Circuit	3002 psi
Service Refill Capacities - Scraper
Fuel Tank - 657G	430 gal (US)
Crankcase	8.9 gal (US)
Transmission	31.9 gal (US)
Differential	44 gal (US)
Cooling System	16.6 gal (US)
Final Drive - Each	7.8 gal (US)

Purpose-Built Coal Bowl

• Large capacity coal bowl scrapers are longer and higher than
standard open bowl scrapers.
• Purpose-built coal bowl dual engine scrapers deliver faster cycle
times with maximum payloads.
• High ground speed provides the ability to manage stockpiles.
• Machine is designed for loading, hauling, and compaction for
complete functionality.
• Work effectively in poor underfoot conditions and climb slippery
piles and loose coal with all-wheel drive (AWD).
• Coal bowl scrapers provide effective coal compaction, which
reduces the risk of spontaneous combustion in coal stockpiles by
eliminating the air spaces.
• Specialty coal bowl scrapers are optimized for maximum machine
productivity and efficiency.

Be More Productive

The Advanced Productivity Electronic Control System (APECS)
    enables communication between the engine and transmission to
    effectively optimize power and torque output. This integration
    results in enhanced efficiency with a net result is moving more
    material.

Use Ground Speed Control to set the desired top speed and the machine will find the gear that works best for the engine and the transmission, providing a lower fuel burn.

The machine speed limit feature allows the machine to maintain a
set top speed instead of relying on top gear selector.

Auto-Stall assists in quickly bringing the transmission to an
operating temperature at start-up when the machine is working in a cold climate region.

Work in Comfort

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
with a 21% larger cab than the 657 G-Series cabs.

Intuitive, ergonomic controls with a multifunction display keep operators
focused on their work.

Maintain desired cab temperature with automatic temperature control
.

Designed for Safety

The powered access ladder, included as a standard feature, enables easier entry and exit from the cab.

Enhance the operator’s awareness of the site surroundings with the
Work Area Vision System (WAVS).Convenient ground-level access to fuel fill and multiple
maintenance points, ensuring safer and more efficient service.

Seat belt indicator provides visual and audible alerts when the seat belt is not in use.

The fuel fill, fuel filter, engine oil filter, engine oil change, and water drain are easily accessible at ground level.

Easy to Operate

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.

The spacious cab features easy, intuitive controls and excellent visibility. The cab provides a comfortable working environment for all-day operation.

Integrated Cat Technologies

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 job site
.

Product Link™collects machine data that can be viewed online through web and mobile applications.

Execute Efficiency

The Cat C18 tractor and C15 scraper engines meet U.S. EPA Tier 4 Final or EU Stage V emission standards, contributing to lower fuel consumption.

The tractor hydraulic demand fan helps lower fuel consumption.

Monitor, manage, and enhance jobsite operations.