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621 Wheel Tractor-Scraper

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Product Specs

Tractor Engine

Flywheel Power - Tractor/Scraper
304 kW (407 hp)

Scraper Bowl

Scraper Capacity - Heaped
24 yd³

Transmission

Top Speed - Loaded
33.5 mile/h

Dimensions

Width - Overall Machine
141.1 in
Width - Tractor
133.1 in
Width - Inside of Bowl
120 in
Width - Outside Rear Tires
128.9 in
Height - Overall Shipping
158.6 in
Height - Top of Cab
142.2 in
Ground Clearance - Tractor
21.9 in
Front of Tractor to Front Axle
122.8 in
Axle to Vertical Hitch Pin
21.3 in
Height - Scraper Blade Maximum
20.5 in
Wheel Base
314.9 in
Rear Axle - Rear of Machine
114.1 in
Width - Overall Machine - Ladder Down
149.2 in
Length - Overall Machine - Standard
551.8 in
Length - Maximum (Push-Pull)
613.2 in
Width - Rear Tire Centers
90.2 in

General

Maximum Depth of Cut
12.4 in
Fuel Tank Refill Capacity - Scraper
216.1 gal (US)
180° Curb-to-Curb Turning Width
38.71 ft
Scraper Capacity - Heaped
24 yd³
Overall Width
11.75 ft
Maximum Depth of Spread
21.3 in
Overall Shipping Height
13.22 ft
Tires - Tractor Drive
33.25R29**E3
Width - Cut
10.3 ft
Scraper Capacity - Struck
17.1 yd³
Top Speed - Loaded
33.5 mile/h
Tires - Scraper
33.25R29**E3
Rated Load
26 127 kg (57,610 lb); 26.19 tonnes (28.81 tons)

Engine

Note
Cat® C13 engine meets U.S. Environmental Protection Agency (EPA) Tier 4 Final/EU Stage IV engine emission standards.
Flywheel Power - Tractor
407 hp
Rated Engine RPM - Tractor
2000 r/min
Engine Model - Tractor
Cat® C13

Service Refill Capacities

Fuel Tank
216.09 gal (US)
Crankcase
8.08 gal (US)
Hydraulic System
21.926 gal (US)
Diesel Exhaust Fluid
8.057 gal (US)
Cooling System
11.89 gal (US)
Transmission System
24.76 gal (US)

Non Push-Pull

Overall Length
45.9 ft
Operating Weight - Empty
79787 lb

Push-Pull

Operating Weight - Empty
80630 lb
Overall Length - With Bail Down
51.1 ft

Cab

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

Reverse Alarm
ISO 9533:2010
Brakes
ISO 3450:1996
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
Steering System
ISO 5010:2007
Seat Belt
SAE J386:JUN1985

Travel Speeds - Runout

Transmission Gear - Eighth
33.5 mile/h
Transmission Gear - Third
7.5 mile/h
Transmission Gear - Fourth
10.1 mile/h
Transmission Gear - First
3.1 mile/h
Transmission Gear - Fifth
13.6 mile/h
Transmission Gear - Reverse
5.7 mile/h
Transmission Gear - Seventh
24.8 mile/h
Transmission Gear - Sixth
18.4 mile/h
Transmission Gear - Second
5.5 mile/h

Implement Cycle Times

Ejector Retract
6.7 s
Bail Raise
1.8 s
Apron Raise
2.95 s
Apron Lower
3.8 s
Ejector Extend
5.2 s
Bowl Raise
3 s
Bowl Lower
3.5 s
Bail Lower
3.2 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
  • Integrated Technologies
    • Sequence Assist and Cat Payload Arrangement
  • 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
    • Camera arrangement - WAVS
    • 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
    • Interactive touchscreen vehicle information 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
    • Fender, 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)

Attachments

  • Note
    • Standard and optional equipment may vary. Consult your Cat dealer for details.
  • Steering Arrangements
    • Secondary Steering Arrangement
  • Integrated Technologies
    • Cat Grade Control, Cat Payload, Sequence Assit, and Load Assist
  • Other Attachments
    • Steering lock - external
    • Cab beacon with air horn
    • Air horn
    • Air horn and beacon
    • Wiring group
    • Year of manufacture plate
  • Other Standard Equipment – Scraper
    • Bowl overflow guard
  • 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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