621 Wheel Tractor-Scraper
At a Glance
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Flywheel Power - Tractor/Scraper
304 kW (407 hp)
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Scraper Capacity - Heaped
24 yd³
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Top Speed - Loaded
33.5 mile/h
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Width - Overall Machine
141.1 in
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Machine Comparison
Overview
Tractor Engine
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| Flywheel Power - Tractor/Scraper |
304 kW (407 hp) |
Scraper Bowl
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| Scraper Capacity - Heaped |
24yd³ |
Transmission
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| Top Speed - Loaded |
33.5mile/h |
Dimensions
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| 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 |
| Length - Maximum (Push-Pull) |
613.2in |
| Width - Overall Machine - Ladder Down |
149.2in |
| Width - Rear Tire Centers |
90.2in |
General
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| Overall Shipping Height |
13.22ft |
| Overall Width |
11.75ft |
| Scraper Capacity - Heaped |
24yd³ |
| Fuel Tank Refill Capacity - Scraper |
216.1gal (US) |
| Tires - Scraper |
33.25R29**E3 |
| Width - Cut |
10.3ft |
| Maximum Depth of Spread |
21.3in |
| Top Speed - Loaded |
33.5mile/h |
| Rated Load |
26 127 kg (57,610 lb); 26.19 tonnes (28.81 tons) |
| 180° Curb-to-Curb Turning Width |
38.71ft |
| Scraper Capacity - Struck |
17.1yd³ |
| Maximum Depth of Cut |
12.4in |
| Tires - Tractor Drive |
33.25R29**E3 |
Engine
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| Engine Model - Tractor |
Cat C13 |
| Flywheel Power - Tractor |
407HP |
| Note |
Cat C13 engine meets U.S. Environmental Protection Agency (EPA) Tier 4 Final/EU Stage IV engine emission standards. |
| Rated Engine RPM - Tractor |
2000r/min |
Service Refill Capacities
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| Hydraulic System |
21.926gal (US) |
| Crankcase |
8.08gal (US) |
| Transmission System |
24.76gal (US) |
| Cooling System |
11.89gal (US) |
| Fuel Tank |
216.09gal (US) |
| Diesel Exhaust Fluid |
8.057gal (US) |
Non Push-Pull
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| Operating Weight - Empty |
79787lb |
| Overall Length |
45.9ft |
Push-Pull
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| Overall Length - With Bail Down |
51.1ft |
| Operating Weight - Empty |
80630lb |
Cab
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| Exterior Sound Level |
The exterior sound power level for the standard machine (ISO 6393:2008) is 118 dB(A). |
| ROPS/FOPS |
Meets SAE and ISO standards |
Safety Criteria Compliance Standards
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| Rollover Protection Structure (ROPS) |
ISO 3471:2008 for up to 17 084 kg (37,664 lb) |
| Brakes |
ISO 3450:1996 |
| Reverse Alarm |
ISO 9533:2010 |
| Falling Object Protective Structure (FOPS) |
ISO 3449:2005 Level II |
| Seat Belt |
SAE J386:JUN1985 |
| Steering System |
ISO 5010:2007 |
Travel Speeds - Runout
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| Transmission Gear - Seventh |
24.8mile/h |
| Transmission Gear - Fifth |
13.6mile/h |
| Transmission Gear - First |
3.1mile/h |
| Transmission Gear - Sixth |
18.4mile/h |
| Transmission Gear - Second |
5.5mile/h |
| Transmission Gear - Third |
7.5mile/h |
| Transmission Gear - Fourth |
10.1mile/h |
| Transmission Gear - Eighth |
33.5mile/h |
| Transmission Gear - Reverse |
5.7mile/h |
Implement Cycle Times
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| Apron Raise |
2.95s |
| Bowl Raise |
3s |
| Ejector Retract |
6.7s |
| Bowl Lower |
3.5s |
| Apron Lower |
3.8s |
| Ejector Extend |
5.2s |
| Bail Lower |
3.2s |
| Bail Raise |
1.8s |
Standard Equipment:
Note
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Standard and optional equipment may vary. Consult your Cat dealer for details.
Power Train - Tractor
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Cat C13 engine with MEUI™
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Cat engine brake
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Electric start, 24 Volt
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Air cleaner, dry type with precleaner
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Fan, hydraulic
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Ground level engine shutdown
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Radiator, aluminum unit core, 9 fins per inch
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Guard, crankcase
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Muffler (only for less or non-regulated regions engine arrangement only)
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Starting aid, ether
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Braking system: - Primary and secondary, wet disc, hydraulic - Parking, hydraulic-released, spring-applied - Throttle lock
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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
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Braking system: - Primary and secondary, wet disc, hydraulic
Electrical - Tractor
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Alternator, 150 Amp
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Batteries (4), 12V, 1,000 CCA, maintenance free, high output
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Electrical system, 24V
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Lighting system: - Headlights, halogen - Turn signals with hazard function, LED floodlights, (2) cutting edge (1) bowl, halogen side vision (2)
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Starting/charging receptacle
Electrical - Scraper
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Alarm, backup
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Lighting system: - Brake lights, LED - Turn signals with hazard function, LED
Operator Environment - Tractor
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HVAC system, heat, AC, defrost
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Thermostat control of HVAC system
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Coat hook
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Lunchbox platform with holding strap
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Diagnostic connection (2)
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12V power ports (2)
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Differential lock (1)
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Dome courtesy light
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Horn, electric
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T-Handle implement control
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Mirror, rearview
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Radio ready
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ROPS/FOPS cab, pressurized
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Keypad switches: - Throttle lock - Wipers/washers - Hazard lights - Retarding level select - Work lights on, off - Information mode on Messenger Display
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Safety tab rocker switches
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Seat belt, static two-piece
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Seat, Cat Advanced Ride Management (ARM), Cat Comfort Series 3, rotates 30 degrees
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Steering wheel, tilt, telescoping, padded
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Windows, right side emergency egress
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Windows, sliding
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Windows, laminated, zipped in
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Windshield wipers, front and rear windows, includes washers
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Door lock
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Messenger Display
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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
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Extended Life Coolant to -37° C (-34° F)
Other Standard Equipment - Tractor
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Advanced cushion hitch
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Accumulators (cushion hitch) with Canadian Registration Number (CRN)
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Fast oil change
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Fenders, non-metallic
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Heater, engine coolant 120V
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Rims (2)
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Tow pin, front
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Vandalism locks
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Heater, engine coolant 120V
Other Standard Equipment - Scraper
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Bowl: - 18.4 m3 (24 yd3), heaped - 14.1 m3 (18.4 yd3), struck
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Vandalism locks
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Hydraulic position sensing cylinders (bowl lift and apron)
Optional Equipment:
Note
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Standard and optional equipment may vary. Consult your Cat dealer for details.
Steering Arrangements
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Secondary Steering Arrangement
Integrated Technologies
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Sequence Assist Arrangement
Load Assist
Cat Grade Control with Load Assist
Work Light Attachments
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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
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
Service Instructions
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Film arrangement - U.S. (ANSI)
Film arrangement - International (ISO)
