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621K Wheel Tractor-Scraper

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CALCULATE FINANCE

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.

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.

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.

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.

General
Maximum Depth of Cut 315 mm (12.4 in)
Maximum Depth of Spread 540 mm (21.3 in)
180u00b0 Curb-to-Curb Turning Width 11.8 m (38.71 ft)
Scraper Capacity - Struck 13 mu00b3 (17.1 ydu00b3)
Tires - Scraper 33.25R29**E3
Overall Width 3.57 m (11.71 ft)
Overall Shipping Height 4.03 m (13.22 ft)
Width - Cut 3.14 m (10.3 ft)
Tires - Tractor Drive 33.25R29**E3
Top Speed - Loaded 53.9 km/h (33.5 mile/h)
Fuel Tank Refill Capacity - Scraper 763 l (201 gal (US))
Scraper Capacity - Heaped 18.4 mu00b3 (24 ydu00b3)
Rated Load 26 127 kg (57,610 lb); 26.19 tonnes (28.81 tons)
Engine
Rated Engine RPM - Tractor 2000 r/min (2000 r/min)
Engine Model - Tractor Cat C13
Flywheel Power - Tractor 304 kW (407 HP)
Note Cat C13 engine meets U.S. Environmental Protection Agency (EPA) Tier 4 Final/EU Stage IV engine emission standards.
Tractor Engine
Flywheel Power - Tractor/Scraper 304 kW (407 hp)
Scraper Bowl
Scraper Capacity - Heaped 18.4 mu00b3 (24 ydu00b3)
Transmission
Top Speed - Loaded 53.9 km/h (33.5 mile/h)
Service Refill Capacities
Hydraulic System 83 l (21.926 gal (US))
Cooling System 45 l (11.89 gal (US))
Fuel Tank 818 l (216.09 gal (US))
Crankcase 30.58 l (8.08 gal (US))
Diesel Exhaust Fluid 30.5 l (8.057 gal (US))
Transmission System 93 l (24.76 gal (US))
Dimensions
Width - Overall Machine 3585 mm (141.1 in)
Width - Tractor 3381 mm (133.1 in)
Width - Inside of Bowl 3048 mm (120 in)
Width - Outside Rear Tires 3275 mm (128.9 in)
Height - Overall Shipping 4029 mm (158.6 in)
Height - Top of Cab 3612 mm (142.2 in)
Ground Clearance - Tractor 557 mm (21.9 in)
Front of Tractor to Front Axle 3119 mm (122.8 in)
Axle to Vertical Hitch Pin 540 mm (21.3 in)
Height - Scraper Blade Maximum 520 mm (20.5 in)
Wheel Base 7998 mm (314.9 in)
Rear Axle - Rear of Machine 2898 mm (114.1 in)
Length - Maximum (Push-Pull) 15576 mm (613.2 in)
Length - Overall Machine - Standard 14015 mm (551.8 in)
Width - Rear Tire Centers 2290 mm (90.2 in)
Width - Overall Machine - Ladder Down 3790 mm (149.2 in)
Non Push-Pull
Overall Length 14.02 m (45.9 ft)
Operating Weight - Empty 36185 kg (79787 lb)
Push-Pull
Operating Weight - Empty 36567 kg (80630 lb)
Overall Length - With Bail Down 15.58 m (51.1 ft)
Cab
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).
Safety Criteria Compliance Standards
Brakes ISO 3450:1996
Seat Belt SAE J386:JUN1985
Steering System ISO 5010:2007
Reverse Alarm ISO 9533:2010
Rollover Protection Structure (ROPS) ISO 3471:2008 for up to 17 084 kg (37,664 lb)
Falling Object Protective Structure (FOPS) ISO 3449:2005 Level II
Travel Speeds - Runout
Transmission Gear - Sixth 29.6 km/h (18.4 mile/h)
Transmission Gear - Fifth 21.9 km/h (13.6 mile/h)
Transmission Gear - Reverse 9.2 km/h (5.7 mile/h)
Transmission Gear - Second 8.9 km/h (5.5 mile/h)
Transmission Gear - Third 12.1 km/h (7.5 mile/h)
Transmission Gear - First 5 km/h (3.1 mile/h)
Transmission Gear - Eighth 53.9 km/h (33.5 mile/h)
Transmission Gear - Fourth 16.3 km/h (10.1 mile/h)
Transmission Gear - Seventh 39.9 km/h (24.8 mile/h)
Implement Cycle Times
Bail Lower 3.2 s (3.2 s)
Bail Raise 1.8 s (1.8 s)
Apron Lower 3.8 s (3.8 s)
Apron Raise 2.95 s (2.95 s)
Ejector Extend 5.2 s (5.2 s)
Ejector Retract 6.7 s (6.7 s)
Bowl Raise 3 s (3 s)
Bowl Lower 3.5 s (3.5 s)

Standard Equipment

  • NOTE
    • Standard and optional equipment may vary. Consult your Cat dealer for details.
  • POWER TRAIN – TRACTOR
    • 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
  • POWER TRAIN – SCRAPER
    • Braking system: – Primary and secondary, wet disc, hydraulic
  • ELECTRICAL – TRACTOR
    • 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
  • ELECTRICAL – SCRAPER
    • Alarm, backup
    • Lighting system: – Brake lights, LED – Turn signals with hazard function, LED
  • OPERATOR ENVIRONMENT – TRACTOR
    • 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
  • FLUIDS
    • Extended Life Coolant to -37° C (-34° F)
  • OTHER STANDARD EQUIPMENT – TRACTOR
    • 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
  • OTHER STANDARD EQUIPMENT – SCRAPER
    • 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

  • NOTE
    • Standard and optional equipment may vary. Consult your Cat dealer for details.
  • STEERING ARRANGEMENTS
    • Secondary Steering Arrangement
  • INTEGRATED TECHNOLOGIES
    • Sequence Assist Arrangement
    • Load Assist
    • Cat Grade Control with Load Assist
  • OTHER ATTACHMENTS
    • Camera arrangement – WAVS
    • Steering lock – external
    • Cab beacon
    • Air horn
    • Air horn and beacon
    • Fender, scraper
    • Guard, overflow
    • Wiring group
    • Year of manufacture plate
  • WORK LIGHT ATTACHMENTS
    • HID work lights
  • AMBIENT CAPABILITY ARRANGEMENTS
    • Cooling, high ambient HRC
    • Cooling, low ambient HRC
    • Cooling, high ambient LRC
    • Cooling, low ambient LRC
  • SERVICE INSTRUCTIONS
    • Film arrangement – U.S. (ANSI)
    • Film arrangement – International (ISO)

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