657G | Toromont Cat

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Product Brochures

Product Brochure #1

Specifications

Dimensions

Width - Overall Machine

171 in 4344 mm
Width - Tractor

141.77 in 3601 mm
Width - Rear Tire Center Lines

110.75 in 2813 mm
Width - Inside of Bowl

145 in 3683 mm
Width - Outside Bowl - Shipping Width

154 in 3914 mm
Height - Overall Shipping

185.4 in 4710 mm
Height - Top of Cab

146.14 in 3712 mm
Ground Clearance - Tractor

25.39 in 645 mm
Front of Tractor to Front Axle

148.4 in 3770 mm
Axle to Vertical Hitch Pin

23.94 in 608 mm
Height - Scraper Blade Maximum

26.77 in 680 mm
Wheel Base

391.97 in 9956 mm
Length - Overall Machine

636.38 in 16164 mm
Rear Axle - Rear of Machine

95.98 in 2438 mm
Bail Length - Maximum (Push-Pull)

72.28 in 1836 mm

Engine

Tractor Engine

Cat® C18 ACERT™
Scraper Engine

Cat C15 ACERT

Hydraulics

Bowl Cylinder Bore

9.25 in 235 mm
Bowl Cylinder Stroke

37.4 in 950 mm
Apron Cylinder Bore

9.25 in 235 mm
Apron Cylinder Stroke

29.92 in 760 mm
Ejector Cylinder Bore

10.24 in 260 mm
Ejector Cylinder Stroke

76.61 in 1946 mm
Steering Circuit

99.9 gpm 378 L/min
Scraper Circuit

153 gpm 579 L/min
Cushion Hitch Circuit

12.7 gpm 48 L/min
Secondary Steering Circuit

64.2 gpm 243 L/min
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

Scraper Bowl

Scraper Capacity - Heaped

44 yd³ 33.6 m³
Rated Load

104000 lb 47174 kg
Capacity - Struck

32 yd³ 24.5 m³
Depth of Cut - Maximum

17 in 440 mm
Width - Cut - To Router Bits

12.7 in 3846 mm
Ground Clearance - Maximum

23 in 580 mm
Cutting Edge Thickness

1.8 in 45 mm
Hyd. Penetration Force - 657G

121000 lb 542 kN
Depth of Spread - Maximum

26 in 660 mm
Apron Opening

92 in 2337 mm
Apron Closure Force

39200 lb 176 kN

Scraper Engine

Net Power

306/337 kW 410/451 hp
Gross Power - Gears 1-2

437 hp 326 kW
Gross Power - Gears 3-8

478 hp 356 kW
Net Power - Gears 1-2

410 hp 306 kW
Net Power - Gears 3-8

451 hp 337 kW
Bore

5.5 in 140 mm
Stroke

6.5 in 165 mm
Displacement

928 in³ 15.2 l

Service Refill Capacities - Scraper

Fuel Tank - 657G

421.9 gal (US) 1597 l
Crankcase

10 gal (US) 38 l
Transmission

32 gal (US) 121 l
Differential

44 gal (US) 168 l
Final Drive - Each

7.9 gal (US) 30 l
Wheel Coolant - Each

34.3 gal (US) 130 l
Cooling System

24 gal (US) 89 l

Service Refill Capacities - Tractor

Crankcase

17 gal (US) 64 l
Transmission

36 gal (US) 136 l
Differential

36 gal (US) 136 l
Final Drive - Each

6 gal (US) 23 l
Cooling System

33 gal (US) 125 l
Hydraulic Reservoir

80 gal (US) 303 l
Wheel Coolant - Each

34.3 gal (US) 130 l
Windshield Washer

0.5 gal (US) 2 l

Steering

Width - 180° Turn - Right

44.62 ft 13.6 m
Width - 180° Turn - Left

47.57 ft 14.5 m
Steering Angle - Right

90°
Steering Angle - Left

85°

Tractor Engine

Flywheel Power - Tractor/Scraper

447 kW (600 hp) / 337 kW (451 hp)
Net Power

421/447 kW 564/600 hp
Gross Power - Gears 1-2

596 hp 445 kW
Gross Power - Gears 3-8

632 hp 471 kW
Net Power - Gears 1-2

564 hp 421 kW
Net Power - Gears 3-8

600 hp 447 kW
Bore

5.7 in 145 mm
Stroke

7.2 in 183 mm
Displacement

1105 in³ 18.1 l

Transmission

Top Speed - Loaded

33 mile/h 55.7 km/h
1 Forward

3.5 mile/h 5.6 km/h
2 Forward

6.3 mile/h 10.2 km/h
3 Forward

7.8 mile/h 12.5 km/h
4 Forward

10.6 mile/h 17 km/h
5 Forward

14.1 mile/h 22.7 km/h
6 Forward

19 mile/h 30.6 km/h
7 Forward

25.6 mile/h 41.2 km/h
8 Forward

34.6 mile/h 55.7 km/h
Reverse

6.1 mile/h 9.8 km/h

Weights - Push-Pull

Total Shipping

160505 lb 72804 kg
Tractor Shipping

93635 lb 42472 kg
Scraper Shipping

64068 lb 29061 kg
Total Operating - Empty

160505 lb 72804 kg
Front Axle

93842 lb 42566 kg
Rear Axle

66663 lb 30238 kg
Total Operating - Loaded

264505 lb 119978 kg
Front Axle - Loaded

134165 lb 60856 kg
Rear Axle - Loaded

130340 lb 59121 kg

Weights - Standard, Tandem

Total Shipping

147959 lb 67113 kg
Tractor Shipping

87717 lb 39788 kg
Scraper Shipping

60242 lb 27325 kg
Total Operating - Empty

150761 lb 68384 kg
Front Axle

87924 lb 39881 kg
Rear Axle

62837 lb 28503 kg
Total Operating - Loaded

254761 lb 115558 kg
Front Axle Weight - Loaded

128246 lb 58172 kg
Rear Axle - Weight - Loaded

126515 lb 57386 kg

Benefits

Operator Comfort

Ergonomic layout with plenty of room to work.
Fatigue fighting low-effort controls with convenient auto-kickouts and detents
Air suspension Cat Comfort Seat adjusts and rotates for more comfortable machine operation
HVAC, defroster, radio ready are standard

Productivity

Excellent visibility to bail, cutting edge and bowl
Transmission hold maintains gear selection for optimum loading performance
Dual throttle pedals for independent front and rear engine control
Single joystick control replaces three implement levers in previous models
Differential lock improves traction, reducing tire slip, wear, and operating costs
Hydraulic retarding for braking on grades

Safety

Hand rails strategically placed for three points of contact
Seat adjusts for best visibility and access to controls; integrated seat belt
ROPS/FOPS integrated into cab structure
Front and rear windshield wipers
Optional secondary steering helps maneuver the machine when primary steering is inoperable
Four braking systems: primary, secondary, parking and hydraulic retarding (optional)

Instruments

1) Bowl (up/down), 2) Ejector (forward/back), 3) Thumb rocker switch, apron, 4) Transmission hold, 5) Cushion hitch, Trigger switch (not shown) bail control
Simple gauge cluster is easy to read
657G dash can display either front or rear engine data
Backlit switches are close at hand
Messaging alerts technicians and operator to service needs

ACERT™ Technology

U.S. EPA Tier 3, EU Stage IIIa emissions compliant
Controlled combustion using proven systems, components
Cross flow cylinder heads for clean air, better circulation
Delivers fuel at the right time and pressure
Rate shaping manages emissions in the combustion cycle

Cat C18 Engine - Tractor

Excellent power density, load response across the curve
High compression ratio improves cold start and performance
MEUI fuel injection matches quantity and timing to load
Matched to the high efficiency torque converter and electronically controlled power shift transmission, it has the torque rise to power through tough material and provide years of dependable service

Cat C15 Engine - Scraper

Strong block and head - 18:1 compression ratio improves cold start performance
Coolant, oil flow design improves heat transfer for durability
Articulated two-piece piston with forged steel crown improves thermal stability and strength
ADEM A4 ECM cold start strategy protects the engine, reduces white smoke and warm up time
Automatic altitude compensation
Mechanical Hydraulic Electronic Unit Fuel Injectors (MEUI) improve combustion with precise injection and atomization

Engine Speed Lock

Allows the operator to maintain a given engine speed without using the accelerator pedal.

Planetary Powershift Transmission Is Electronically Controlled

Tractor gears 1-2 - converter drive for increased torque, tractor gears 3-8 - direct-drive for drive train efficiency. Scraper gears stay in converter drive for optimum torque
Transmission Hold maintains converter drive for max rimpull, or holds current gear for best control
Programmable Top Gear manually sets top gear available (3rd-8th) to match conditions or speed
Neutral Coast Inhibitor prevents power train overspeeding by synchronizing engine rpm, pump lubrication and drive train speed, preventing under-lubrication
Hydraulic Retarder (optional) reduces service brake wear and enhances machine control

Final Drives

Outboard-mounted, planetary design reduces torque loads within the power train
Double-row roller bearings and Duo-Cone™ seals assure reliability
Differential Lock improves traction in slippery conditions, reducing tire wear

Brake Performance

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, air-released mechanism that operates the service brakes

Torque Converter

Increases rimpull and shortens load times, and eliminates engine stall to efficiently deliver power to the ground and move more dirt.

Benefits of Electronic Control Modules (ECMs)

ECMs (3 on the tractor, 2 on rear-powered scrapers) offer:

Better fuel economy by optimizing engine settings
Greater reliability with operator warnings if problems arise
Combining tractor and rear powered-scraper monitoring systems, easy access diagnostics, more durable components improves serviceability
Reduced exhaust smoke by optimizing the fuel/air ratio during cranking, starting and acceleration
Air filter restriction indicator alerts operator if filter exceeds allowable limit
Periodically raises engine rpm during low idle to keep the batteries fully charged

Combined Electronic Monitoring System (EMS III)

Monitors both the tractor and scraper status on the 657G; access fault codes from one location. The tractor and powered scraper use the same controller for parts commonality and easier servicing.

Product Link Ready

This wireless system lets the customer track location, service meter hours and machine health information. Can also issue alerts if the machine is operated beyond owner defined time and location limits.

Easy Access Diagnostics Means Faster Problem Solving

Diagnostic codes, via the Electronic Technician (Cat ET), and a radio call can often let the service technician know which tools, manuals, and possibly even replacement parts to bring.

Cushion Hitch

The electronically actuated cushion hitch has a parallelogram-type linkage for exceptional strength. Vertically mounted hydraulic cylinder transfers road shocks to nitrogen accumulators. Nitrogen accumulator absorbs and dampens road shocks, thus preventing these loads from being transmitted to the operator.

controlled oil flow dampens rebound oscillation
leveling valve applies pressure via an orifice to automatically center piston in the load cylinder
steel castings are used to eliminate many welded joints and increase strength
double-kingbolt design withstands high external forces and simplifies installation and removal

Lockout Switch

An operator-selectable lockout switch, located on the joystick, locks the cushion hitch down for improved cutting edge control when loading or dumping.

Bowl Design

Excellent productivity, improved draft arm protection, and better load retention. Low profile design offers less resistance to incoming materials, while cellular construction adds strength and dent resistance to bowl sides and floor.

Bulldozer Ejection System

Combines constant spreading control with minimum carryback.

Overflow Guard

An available overflow guard on the scraper bowl helps retain material, and limits spills onto the rear of the scraper.

Push-Loading

Where material types include rocky/abrasive material, or become traction-limited, push loading a 657G with a Cat D10 or D11 will optimize tire wear and productivity.

Cutting Edges and Cat Ground Engaging Tools (GET)

May be adjusted according to job conditions. Smooth and serrated cutting edges with available tip options can be applied to match job site conditions. For most efficient loading, use the thinnest cutting edge that provides satisfactory wear life and impact resistance.

Tandem Engines

Tandem engine machines improve cycle times on grades and in slippery underfoot conditions. Also improves the machine's loading characteristics in tough materials like clay.

Material Appetite

Well suited to handle a wide variety of material from clay to shot rock.

Bowl Capacity

High-capacity bowls, built longer and taller than earth-moving bowls, allow the 657G to achieve rated load in light weight coal.

Wheel Tractor-Scraper Benefits

High speed, self-loading productivity for stockpile and feeder management
Coal pile compaction
Bowl capacity 56 m³ (73 yd³) heaped
All-wheel drive allows the machine to work in poor underfoot conditions and operate on piles of loose coal

Combined Power Increases Production

Push-pull applies the power of four engines to a single cutting edge. The benefit is realized in tough-to-load material and fast loading of both machines. Push-pull applications have the potential to produce the lowest cost per unit volume, and a high rate of production.

Hydraulically Actuated Bail

The push-pull arrangement uses a hydraulically actuated bail and cushioned plate to push, and a hook that is attached to the rear of the scraper to pull.

Engine Service Points

Maintenance/service points grouped on the right side
Grouping fluid fill and check points, filters and sampling ports shortens maintenance times
Electronic Monitoring System (EMS) provides real-time information to the operator of system warnings
Electronic Technician (Cat ET) displays real-time system data to better inform the service technician

Implement Valve Relocation

The implement valve is relocated from the tractor to the top of the scraper draft tube, reducing the number of hoses and tubes crossing over the gooseneck. This reduces potential leak points and improves service access.

Scraper Electrical Harness and One Piece Power Block

The flexible ribbon wiring harness oscillates with the machine, and polyurethane boots offer better protection against the elements. The jumpstart receptacle and disconnect switch are integrated into a one-piece power block, with a lockable cover, for better electrical integrity and serviceability.

Electro-Hydraulic Implement Control Simplifies Serviceability

Removing the cab pilot valve and associated lines improves reliability and reduces noise. The high efficiency electro-hydraulic pilot oil filter provides cleaner oil for the pilot system.

Equipment Info

NOTE

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

ELECTRICAL

Alarm, backup

OPERATOR ENVIRONMENT

Air Conditioner (includes heater and defroster)

POWER TRAIN

Tractor

OTHER STANDARD EQUIPMENT

Tractor

360 view

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