621K WHEEL TRACTOR-SCRAPER
SPECIFICATIONS
Flywheel Power: Tractor/Scraper304 kW (407 hp)
Scraper Capacity: Heaped18.4 m3
Top Speed (Loaded)53.9 km/h
BENEFITS AND FEATURES
main features and benefits
LEARN MOREtractor engine
Flywheel Power: Tractor/Scraper304 kW (407 hp)
scraper bowl
Scraper Capacity: Heaped18.4 m3
transmission
Top Speed (Loaded)53.9 km/h
engine
Engine Model: TractorCat C13 ACERT™
Flywheel Power: Tractor304.0 kW
NoteCat C13 ACERT engine meets U.S. Environmental Protection Agency (EPA) Tier 4 Final/EU Stage IV engine emission standards.
Rated Engine RPM: Tractor2000.0 RPM
dimensions
Width - Overall Machine3585.0 mm
Width - Tractor3381.0 mm
Width - Inside of Bowl3048.0 mm
Width - Outside Rear Tires3275.0 mm
Height - Overall Shipping4029.0 mm
Height - Top of Cab3612.0 mm
Ground Clearance - Tractor557.0 mm
Front of Tractor to Front Axle3119.0 mm
Axle to Vertical Hitch Pin540.0 mm
Height - Scraper Blade Maximum520.0 mm
Wheelbase7998.0 mm
Rear Axle to Rear of Machine2898.0 mm
Length - Maximum (Push-Pull)15576.0 mm
Length - Overall Machine (Standard)14015.0 mm
Width - Overall Machine - Ladder Down3790.0 mm
Width - Rear Tire Centers2290.0 mm
travel speeds runout
Transmission Gear: Eighth53.9 km/h
Transmission Gear: Fifth21.9 km/h
Transmission Gear: First5.0 km/h
Transmission Gear: Fourth16.3 km/h
Transmission Gear: Reverse9.2 km/h
Transmission Gear: Second8.9 km/h
Transmission Gear: Seventh39.9 km/h
Transmission Gear: Sixth29.6 km/h
Transmission Gear: Third12.1 km/h
pushpull
Operating Weight (Empty)36567.0 kg
Overall Length (With Bail Down)15.58 m
general data
180° Curb-to-Curb Turning Width11.8 m
Fuel Tank Refill Capacity: Scraper763.0 L
Maximum Depth of Cut315.0 mm
Maximum Depth of Spread540.0 mm
Overall Shipping Height4.03 m
Overall Width3.57 m
Rated Load26 127 kg (57,610 lb); 26.19 tonnes (28.81 tons)
Scraper Capacity: Heaped18.4 m3
Scraper Capacity: Struck13.0 m3
Tires: Scraper33.25R29**E3
Tires: Tractor Drive33.25R29**E3
Top Speed (Loaded)53.9 km/h
Width of Cut3.14 m
cab
Exterior Sound LevelThe exterior sound power level for the standard machine (ISO 6393) is 111.5 dB(A).
ROPS/FOPSMeets SAE and ISO standards
implement cycle times
Apron Lower3.8 Seconds
Apron Raise2.95 Seconds
Bail Lower3.2 Seconds
Bail Raise1.8 Seconds
Bowl Lower3.5 Seconds
Bowl Raise3.0 Seconds
Ejector Extend5.2 Seconds
Ejector Retract6.7 Seconds
service refill capacities
Cooling System45.0 L
Crankcase30.58 L
Diesel Exhaust Fluid30.5 L
Fuel Tank818.0 L
Hydraulic System83.0 L
Transmission System93.0 L
non pushpull
Operating Weight (Empty)36185.0 kg
Overall Length14.02 m
safety criteria compliance standards
BrakesISO 3450:1996
Falling Object Protective Structure (FOPS)ISO 3449:2005 Level II
Reverse AlarmISO 9533:2010
Rollover Protection Structure (ROPS)ISO 3471:2008 for up to 17 084 kg (37,664 lb)
Seat BeltSAE J386:JUN1985
Steering SystemISO 5010:2007
BENEFITS AND FEATURES
MAIN FEATURES AND BENEFITS
LEARN MORE621K STANDARD EQUIPMENT
- power train tractor
Cat C13 ACERT 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)
621K OPTIONS
- 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 - 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 - other attachments
Year of manufacture plate - service instructions
Film arrangement - U.S. (ANSI)
Film arrangement - International (ISO)
MOTEUR
BENEFITS AND FEATURES
• Tractor Serviceability Improvement - 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.
• 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.
• Advanced Cushion Hitch - With similar technology as the Cat® Advanced Ride Management seat suspension, this software allows the cushion hitch to prevent 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.
• High Pressure Steering - 620K 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.
• Draft Arm Overflow Guards - 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.
• Auto Stall - 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.
• Differential Lock Engagement Protection (Standard) - This standard feature allows the machine to prevent the operator from engaging the differential lock when damage could occur.
• Cab Improved - The interior of the K Series cabs has improved the operator comfort and visibility by redesigning the dash area and key pad placement.
• Machine Speed Limit - This feature 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 - 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.