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Open Bowl Scraper (657G)
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Catalog excerpts

Open Bowl Scraper (657G) - 1

Engine Scraper Bowl Tractor Engine Cat® C18 ACERT™ Heaped Capacity 33.6 m3 44yd1 Net Power 421/447 kW 564/600 hp Rated Load 47 200 kg 104,0581b Scraper Engine Cat C15 ACERT

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Open Bowl Scraper (657G) - 2

657G Wheel Tractor Scraper Responsible, productive earthmoving machines, built to last. Power Train – Engine ✔ The C18 and the C15 engines with ACERT™ Technology works at the point of combustion to optimize engine performance. Matched with the torque converter and power shift transmission, it provides years of dependable and efficient service. pg. 4 Power Train – Transmission ✔ Electronic controls switch from converter drive to direct drive based on gear selection, maximizing efficiency and power application. Tractor and scraper engines are synchronized for smooth operation and longer...

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Open Bowl Scraper (657G) - 3

Operator Station Electronic Controls Scraper Bowl ® ✔ Convenient control placement and a ✔ The electronic controls respond to ✔ Caterpillar Scraper bowls are designed comfortable work environment are keys operator commands and input from for excellent material flow and retention to high productivity. Features include on-board sensors to optimize machine for fast cycle times and high electro-hydraulic controls, an available performance. In addition, the electronic productivity. pg. 11 air seat suspension and advanced controls provide advanced diagnostic instrumentation. pg. 8 capabilities...

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Open Bowl Scraper (657G) - 4

Power Train – Engine A combination of innovations working at the point of combustion, ACERT™ technology optimizes engine performance while meeting regulations for off-road applications. Electronic unit injector Cat C18 engine with ACERT™ Technology C18 Tractor Engine. The tractor for the 657G is powered by the C18 engine with ACERT™ Technology. The large displacement and high torque rise allow the scraper to cut through tough material. Matched to the high efficiency torque converter and electronically controlled power shift transmission, it will provide years of dependable service. C15...

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Open Bowl Scraper (657G) - 5

ADEM™ A4 Control Module. Controls engine rpm by adjusting the fuel duration, which results in quicker starts in hot and cold weather, better fuel economy, better operator response, and automatic compensation for altitude and filter plugging. Reduced Exhaust Smoke. The ADEM A4 controller reads electronic sensors to determine the optimum fuel/air ratio. Fuel is precisely controlled during cranking, starting and acceleration to reduce smoke. The Engine Electronics are faster and more efficient than mechanically controlling the governor rack position. Ether Starting Aid. The ADEM A4 controller...

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Open Bowl Scraper (657G) - 6

Power Train – Transmission Integrated electronics allow the machine to monitor the entire power train, reducing component stress and providing a better ride. Differential Control. Electronic differential lock helps prevent the drive wheels from spinning in poor underfoot conditions. The operator engages the differential lock with a foot control located in the cab. Neutral Coast Inhibitor. Prevents the transmission from shifting into neutral if the operator selects neutral while moving. The transmission control will select the proper gear for the given engine rpm and ground speed. Final...

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Open Bowl Scraper (657G) - 7

Structures Superior structural design and construction optimize performance and reliability. Cushion Hitch. The electronically actuated cushion hitch incorporates a parallelogram-type linkage for exceptional strength with nitrogen accumulators to deliver a smooth ride for enhanced operator comfort. • cushion hitch lock down control for positive cutting edge down pressure when loading or spreading leveling valve automatically centers piston in cylinder for all loads Load cylinder Hitch castings Scraper gooseneck Nitrogen accumulators Orifice Oil from tractor hydraulic system Leveling valve...

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Open Bowl Scraper (657G) - 8

Operator Station State-of-the-art productivity and operator comfort. Seat Suspension. The new standard seat suspension features a high performance air shock absorber with a self-contained air compressor. For operators requiring additional damping, dual shock absorbers in the seat suspension are available. Revised Steering Column. Increases legroom a full 89 mm (3.5 in), and reduces knee contact. Standard Air Conditioning. Standard air conditioning system with relocated louvers enhances airflow in the cab. Storage And Amenities. Convenient storage location includes space for a lunch box and...

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Open Bowl Scraper (657G) - 9

Engine Speed Lock Controller. Enhances operation during long haul cycles by allowing the operator to maintain a desired engine speed, without maintaining pressure on the throttle. Simplified Transmission Control. Simplifies gear selection (1st, 2nd, Drive and Reverse) and allows operator-defined top gear control. Relocating the gear control to the rear increases operator legroom. Neutral Lock. The neutral lock thumb control must be pressed to move the shifter from neutral. To use the top gear button, the operator must hold the yellow button until the gear display indicates the desired top...

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Open Bowl Scraper (657G) - 10

Electronic Controls Integrated electronic controls provide smooth, consistent shifts through the synchronization of engine and transmission speeds. Low Battery Elevated Idle. The ADEM A4 controller automatically compensates for low alternator output at low idle by raising the rpm for brief intervals to keep the batteries fully charged. Improved Serviceability. Combined monitoring systems, easy access diagnostics and more durable components make routine maintenance and servicing simple and fast. Simplified System. The electrical system has been redesigned to utilize three electronic control...

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Open Bowl Scraper (657G) - 11

Scraper Bowl Designed for optimum loading, material retention and ejection. Caterpillar Ground Engaging Tools (G.E.T.). A wide variety of Ground Engaging Tools (GET) options such as standard, serrated, and abrasion resistant material (ARM) are available to optimize scraper loading in various materials. For example, ARM scraper cutting edges and router bits will provide up to five times the wear life of conventional edges and router bits in high wear, low impact applications. Depending on applications, the serrated cutting edge may be more cost effective than the integrated tooth cutting...

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