Quick loading, high travel speeds and the ability to load and dump on the run yield fast cycle times, allowing Cat Wheel Tractor-Scrapers to consistently deliver high productivity at the lowest cost per ton.
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Specs
Tractor Engine
- Flywheel Power: Tractor/Scraper
- 304 kW (407 hp)
- Flywheel Power - Tractor/Scraper
- 304 kW (407 hp)
Scraper Bowl
- Scraper Capacity: Heaped
- 24.0yd3
- Scraper Capacity - Heaped
- 24yd³
Transmission
- Top Speed (Loaded)
- 33.5mph
- Top Speed - Loaded
- 33.5mile/h
Dimensions
- Width - Overall Machine
- 141.1in
- Width - Tractor
- 133.1in
- Width - Inside of Bowl
- 120.0in
- Width - Outside Rear Tires
- 128.9in
- Height - Overall Shipping
- 158.6in
- Height - Top of Cab
- 142.2in
- Ground Clearance - Tractor
- 21.9in
- Front of Tractor to Front Axle
- 122.8in
- Axle to Vertical Hitch Pin
- 21.3in
- Height - Scraper Blade Maximum
- 20.5in
- Wheelbase
- 314.9in
- Rear Axle to Rear of Machine
- 114.1in
- Length - Overall Machine (Standard)
- 551.8in
- Width - Overall Machine - Ladder Down
- 149.2in
- Width - Rear Tire Centers
- 90.2in
- Length - Maximum (Push-Pull)
- 613.2in
- Width - Overall Machine
- 141.1in
- Width - Tractor
- 133.1in
- Width - Inside of Bowl
- 120in
- Width - Outside Rear Tires
- 128.9in
- Height - Overall Shipping
- 158.6in
- Height - Top of Cab
- 142.2in
- Ground Clearance - Tractor
- 21.9in
- Front of Tractor to Front Axle
- 122.8in
- Axle to Vertical Hitch Pin
- 21.3in
- Height - Scraper Blade Maximum
- 20.5in
- Wheel Base
- 314.9in
- Rear Axle - Rear of Machine
- 114.1in
- Length - Overall Machine - Standard
- 551.8in
- Width - Overall Machine - Ladder Down
- 149.2in
- Width - Rear Tire Centers
- 90.2in
Engine
- Flywheel Power: Tractor
- 407.0hp
- Note
- Cat C13 ACERT engine meets U.S. Environmental Protection Agency (EPA) Tier 4 Final/EU Stage IV engine emission standards.
- Engine Model - Tractor
- Cat C13
- Rated Engine RPM - Tractor
- 2000r/min
- Flywheel Power - Tractor
- 407HP
- Note
- Cat C13 engine meets U.S. Environmental Protection Agency (EPA) Tier 4 Final/EU Stage IV engine emission standards.
Travel Speeds (Runout)
- Transmission Gear: Eighth
- 33.5mph
- Transmission Gear: Fifth
- 13.6mph
- Transmission Gear: First
- 3.1mph
- Transmission Gear: Fourth
- 10.1mph
- Transmission Gear: Reverse
- 5.7mph
- Transmission Gear: Second
- 5.5mph
- Transmission Gear: Seventh
- 24.8mph
- Transmission Gear: Sixth
- 18.4mph
- Transmission Gear: Third
- 7.5mph
General Data
- 180° Curb-to-Curb Turning Width
- 38.71ft
- Fuel Tank Refill Capacity: Scraper
- 201.0gal
- Maximum Depth of Cut
- 12.4in
- Maximum Depth of Spread
- 21.3in
- Overall Shipping Height
- 13.22ft
- Overall Width
- 11.71ft
- Rated Load
- 26 127 kg (57,610 lb); 26.19 tonnes (28.81 tons)
- Scraper Capacity: Heaped
- 24.0yd3
- Scraper Capacity: Struck
- 17.1yd3
- Tires: Scraper
- 33.25R29**E3
- Tires: Tractor Drive
- 33.25R29**E3
- Top Speed (Loaded)
- 33.5mph
- Width of Cut
- 10.3ft
Cab
- Exterior Sound Level
- The exterior sound power level for the standard machine (ISO 6393) is 111.5 dB(A).
- ROPS/FOPS
- Meets SAE and ISO standards
- Exterior Sound Level
- The exterior sound power level for the standard machine (ISO 6393) is 111.5 dB(A).
- ROPS/FOPS
- Meets SAE and ISO standards
Implement Cycle Times
- Apron Lower
- 3.8Seconds
- Apron Raise
- 2.95Seconds
- Bail Lower
- 3.2Seconds
- Bail Raise
- 1.8Seconds
- Bowl Lower
- 3.5Seconds
- Bowl Raise
- 3.0Seconds
- Ejector Extend
- 5.2Seconds
- Ejector Retract
- 6.7Seconds
- Apron Lower
- 3.8s
- Apron Raise
- 2.95s
- Bail Lower
- 3.2s
- Bail Raise
- 1.8s
- Bowl Lower
- 3.5s
- Bowl Raise
- 3s
- Ejector Extend
- 5.2s
- Ejector Retract
- 6.7s
Service Refill Capacities
- Cooling System
- 11.89gal
- Crankcase
- 8.08gal
- Diesel Exhaust Fluid
- 8.0572gal
- Fuel Tank
- 216.09gal
- Hydraulic System
- 21.926gal
- Transmission System
- 24.76gal
- Cooling System
- 11.89gal (US)
- Crankcase
- 8.08gal (US)
- Diesel Exhaust Fluid
- 8.057gal (US)
- Fuel Tank
- 216.09gal (US)
- Hydraulic System
- 21.926gal (US)
- Transmission System
- 24.76gal (US)
Safety Criteria Compliance Standards
- Brakes
- ISO 3450:1996
- Falling Object Protective Structure (FOPS)
- ISO 3449:2005 Level II
- Reverse Alarm
- ISO 9533:2010
- Rollover Protection Structure (ROPS)
- ISO 3471:2008 for up to 17 084 kg (37,664 lb)
- Seat Belt
- SAE J386:JUN1985
- Steering System
- ISO 5010:2007
- Brakes
- ISO 3450:1996
- Falling Object Protective Structure (FOPS)
- ISO 3449:2005 Level II
- Reverse Alarm
- ISO 9533:2010
- Rollover Protection Structure (ROPS)
- ISO 3471:2008 for up to 17 084 kg (37,664 lb)
- Seat Belt
- SAE J386:JUN1985
- Steering System
- ISO 5010:2007
Push-Pull
- Operating Weight - Empty
- 80630lb
- Overall Length - With Bail Down
- 51.1ft
Non Push-Pull
- Operating Weight - Empty
- 79787lb
- Overall Length
- 45.9ft
General
- 180° Curb-to-Curb Turning Width
- 38.71ft
- Fuel Tank Refill Capacity - Scraper
- 201gal (US)
- Maximum Depth of Cut
- 12.4in
- Maximum Depth of Spread
- 21.3in
- Overall Shipping Height
- 13.22ft
- Overall Width
- 11.71ft
- Rated Load
- 26 127 kg (57,610 lb); 26.19 tonnes (28.81 tons)
- Scraper Capacity - Heaped
- 24yd³
- Scraper Capacity - Struck
- 17.1yd³
- Tires - Scraper
- 33.25R29**E3
- Tires - Tractor Drive
- 33.25R29**E3
- Top Speed - Loaded
- 33.5mile/h
- Width - Cut
- 10.3ft
Travel Speeds - Runout
- Transmission Gear - Eighth
- 33.5mile/h
- Transmission Gear - Fifth
- 13.6mile/h
- Transmission Gear - First
- 3.1mile/h
- Transmission Gear - Fourth
- 10.1mile/h
- Transmission Gear - Reverse
- 5.7mile/h
- Transmission Gear - Second
- 5.5mile/h
- Transmission Gear - Seventh
- 24.8mile/h
- Transmission Gear - Sixth
- 18.4mile/h
- Transmission Gear - Third
- 7.5mile/h
Features
EFFICIENCY THROUGH TECHNOLOGY
- Machine Speed Limit is designed to take the place of top gear selection. If the machine top speed needs to be limited the operator can select the top speed through the display or the top speed can be set in ET. This will allow the machine to find the correct gear that works best for the engine and transmission. Allowing the engine and transmission to select the correct gear to pull the load in most cases resulting in a lower engine load factor and lower fuel burn verses using top gear selection that required the machine to run at engine speeds at or close high idle.
- Ground Speed Control sets the desired top speed by the operator if job site conditions or segment speed limits require a speed less than full run out. Machine Speed Limit is intended for use when top speed needs to be limited for longer durations and Ground Speed Control is intended for use when the top speed needs to be reduced for shorter segments or intermediate periods of time. The operator can set the desired top speed and the machine will find the correct gear that works best for the engine and transmission. Allowing the engine and transmission to select the correct gear to pull the load in most cases will result in a lower engine load factor and lower fuel burn verses top gear selection.
- Machine Speed Limit is designed to take the place of top gear selection. If the machine top speed needs to be limited the operator can select the top speed through the display or the top speed can be set in ET. This will allow the machine to find the correct gear that works best for the engine and transmission. Allowing the engine and transmission to select the correct gear to pull the load in most cases resulting in a lower engine load factor and lower fuel burn verses using top gear selection that required the machine to run at engine speeds at or close high idle.
- Ground Speed Control sets the desired top speed by the operator if job site conditions or segment speed limits require a speed less than full run out. Machine Speed Limit is intended for use when top speed needs to be limited for longer durations and Ground Speed Control is intended for use when the top speed needs to be reduced for shorter segments or intermediate periods of time. The operator can set the desired top speed and the machine will find the correct gear that works best for the engine and transmission. Allowing the engine and transmission to select the correct gear to pull the load in most cases will result in a lower engine load factor and lower fuel burn verses top gear selection.
OPERATOR COMFORT AND CONTROL
- The interior of the K Series cabs has improved the operator comfort and visibility by redesigning the dash area and key pad placement.
- Advanced Cushion Hitch prevents end stroke by having the ability to predict end stroke events and manage the rate of dampening. The desired result is improved hitch repair, reduced maintenance and improved operator ride in rough conditions.
- 621K Series steering system design requires significantly less steering effort. The reduced steering effort will allow for decreased operator fatigue and a more efficient operator resulting in possible higher rates of production late in the work cycle.
- The interior of the K Series cabs has improved the operator comfort and visibility by redesigning the dash area and key pad placement.
- Advanced Cushion Hitch prevents end stroke by having the ability to predict end stroke events and manage the rate of dampening. The desired result is improved hitch repair, reduced maintenance and improved operator ride in rough conditions.
- 621K Series steering system design requires significantly less steering effort. The reduced steering effort will allow for decreased operator fatigue and a more efficient operator resulting in possible higher rates of production late in the work cycle.
BUILT-IN SAFETY FEATURES
- Differential Lock Engagement Protection feature allows the machine to prevent the operator from engaging the differential lock when damage could occur.
- The open bowls now come standard with bowl side overflow guards to help prevent material from flowing over the bowl sides and falling onto the draft arms where material becomes lodged between the bowl side and draft arm resulting in decreased work cycle times.
- Engine Over Speed Protection - In the event of an engine over speed situation, the compression brake or brakes will automatically engage with no operator input. The machine determines the over speed condition based on rate of acceleration and applies compression brakes automatically.
- Differential Lock Engagement Protection feature allows the machine to prevent the operator from engaging the differential lock when damage could occur.
- The open bowls now come standard with bowl side overflow guards to help prevent material from flowing over the bowl sides and falling onto the draft arms where material becomes lodged between the bowl side and draft arm resulting in decreased work cycle times.
- Engine Over Speed Protection - In the event of an engine over speed situation, the compression brake or brakes will automatically engage with no operator input. The machine determines the over speed condition based on rate of acceleration and applies compression brakes automatically.
SAVE ON MAINTENANCE TIME
- In cold weather conditions the machine will use the Auto Stall feature to help warm up the transmission oil faster resulting in the machine shifting out of torque converter drive (2nd gear) faster than on previous models.
- The filter bank located at the rear of the engine compartment has undergone improvements for serviceability by raising the filter bank up for easier access.
- In cold weather conditions the machine will use the Auto Stall feature to help warm up the transmission oil faster resulting in the machine shifting out of torque converter drive (2nd gear) faster than on previous models.
- The filter bank located at the rear of the engine compartment has undergone improvements for serviceability by raising the filter bank up for easier access.
Standard Equipment
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- Note
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- Standard and optional equipment may vary. Consult your Cat dealer for details.
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- Power Train - Tractor
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- Cat C13 engine with MEUI™
- Cat engine brake
- Electric start, 24 Volt
- Air cleaner, dry type with precleaner
- Fan, hydraulic
- Ground level engine shutdown
- Radiator, aluminum unit core, 9 fins per inch
- Guard, crankcase
- Muffler (only for less or non-regulated regions engine arrangement only)
- Starting aid, ether
- Braking system: - Primary and secondary, wet disc, hydraulic - Parking, hydraulic-released, spring-applied - Throttle lock
- Transmission: - 8-speed planetary power shift - ECPC control - APECS software - Programmable top gear selection - Transmission hold - Differential lock - Guard, power train - Standard tire spin reduction - Ground speed control - Machine speed limit - Differential lock protection
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- Power Train - Scraper
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- Braking system: - Primary and secondary, wet disc, hydraulic
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- Electrical - Tractor
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- Alternator, 150 Amp
- Batteries (4), 12V, 1,000 CCA, maintenance free, high output
- Electrical system, 24V
- Lighting system: - Headlights, halogen - Turn signals with hazard function, LED floodlights, (2) cutting edge (1) bowl, halogen side vision (2)
- Starting/charging receptacle
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- Electrical - Scraper
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- Alarm, backup
- Lighting system: - Brake lights, LED - Turn signals with hazard function, LED
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- Operator Environment - Tractor
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- HVAC system, heat, AC, defrost
- Thermostat control of HVAC system
- Coat hook
- Lunchbox platform with holding strap
- Diagnostic connection (2)
- 12V power ports (2)
- Differential lock (1)
- Dome courtesy light
- Horn, electric
- T-Handle implement control
- Mirror, rearview
- Radio ready
- ROPS/FOPS cab, pressurized
- Keypad switches: - Throttle lock - Wipers/washers - Hazard lights - Retarding level select - Work lights on, off - Information mode on Messenger Display
- Safety tab rocker switches
- Seat belt, static two-piece
- Seat, Cat Advanced Ride Management (ARM), Cat Comfort Series 3, rotates 30 degrees
- Steering wheel, tilt, telescoping, padded
- Windows, right side emergency egress
- Windows, sliding
- Windows, laminated, zipped in
- Windshield wipers, front and rear windows, includes washers
- Door lock
- Messenger Display
- Gauges, warnings include: - Coolant temperature - Engine oil temperature - Hydraulic oil temperature - DPF temperature - Fuel level - Park brake - Implement lockout - Brake system - Regeneration required - Throttle lock - System voltage - Secondary steering - Bail down - Ejector auto - Differential lock - Apron float - Transmission hold - Cushion hitch - High beam lights - Action lamp - Engine speed, rpm - Gear selection - DEF fill levels
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- Fluids
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- Extended Life Coolant to -37° C (-34° F)
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- Other Standard Equipment - Tractor
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- Advanced cushion hitch
- Accumulators (cushion hitch) with Canadian Registration Number (CRN)
- Fast oil change
- Fenders, non-metallic
- Heater, engine coolant 120V
- Rims (2)
- Tow pin, front
- Vandalism locks
- Heater, engine coolant 120V
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- Other Standard Equipment - Scraper
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- Bowl: - 18.4 m3 (24 yd3), heaped - 14.1 m3 (18.4 yd3), struck
- Vandalism locks
- Hydraulic position sensing cylinders (bowl lift and apron)
Optional Equipment
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- Note
-
- Standard and optional equipment may vary. Consult your Cat dealer for details.
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- Steering Arrangements
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- Secondary Steering Arrangement
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- Integrated Technologies
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- Sequence Assist Arrangement
- Load Assist
- Cat Grade Control with Load Assist
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- Other Attachments
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- Camera arrangement - WAVS
- Steering lock - external
- Cab beacon
- Air horn
- Air horn and beacon
- Fender, scraper
- Guard, overflow
- Wiring group
- Year of manufacture plate
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- Work Light Attachments
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- HID work lights
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- Ambient Capability Arrangements
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- Cooling, high ambient HRC
- Cooling, low ambient HRC
- Cooling, high ambient LRC
- Cooling, low ambient LRC
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- Service Instructions
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- Film arrangement - U.S. (ANSI)
- Film arrangement - International (ISO)