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621 Wheel Tractor-Scraper
BE MORE PRODUCTIVE
WORK IN COMFORT
DESIGNED FOR SAFETY
EASY TO OPERATE
INTEGRATED CAT TECHNOLOGIES
EXECUTE EFFICIENCY
| General | |
|---|---|
| Overall Shipping Height | 4.03 m (13.22 ft) |
| Overall Width | 3.58 m (11.75 ft) |
| Scraper Capacity - Heaped | 18.4 mu00b3 (24 ydu00b3) |
| Fuel Tank Refill Capacity - Scraper | 818 l (216.1 gal (US)) |
| Tires - Scraper | 33.25R29**E3 |
| Width - Cut | 3.14 m (10.3 ft) |
| Maximum Depth of Spread | 540 mm (21.3 in) |
| Top Speed - Loaded | 53.9 km/h (33.5 mile/h) |
| Rated Load | 26 127 kg (57,610 lb); 26.19 tonnes (28.81 tons) |
| 180u00b0 Curb-to-Curb Turning Width | 11.8 m (38.71 ft) |
| Scraper Capacity - Struck | 13 mu00b3 (17.1 ydu00b3) |
| Maximum Depth of Cut | 315 mm (12.4 in) |
| Tires - Tractor Drive | 33.25R29**E3 |
| Engine | |
|---|---|
| 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. |
| Rated Engine RPM - Tractor | 2000 r/min (2000 r/min) |
| 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)) |
| Crankcase | 30.58 l (8.08 gal (US)) |
| Transmission System | 93 l (24.76 gal (US)) |
| Cooling System | 45 l (11.89 gal (US)) |
| Fuel Tank | 818 l (216.09 gal (US)) |
| Diesel Exhaust Fluid | 30.5 l (8.057 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 - Overall Machine - Standard | 14015 mm (551.8 in) |
| Length - Maximum (Push-Pull) | 15576 mm (613.2 in) |
| Width - Overall Machine - Ladder Down | 3790 mm (149.2 in) |
| Width - Rear Tire Centers | 2290 mm (90.2 in) |
| Non Push-Pull | |
|---|---|
| Operating Weight - Empty | 36185 kg (79787 lb) |
| Overall Length | 14.02 m (45.9 ft) |
| Push-Pull | |
|---|---|
| Overall Length - With Bail Down | 15.58 m (51.1 ft) |
| Operating Weight - Empty | 36567 kg (80630 lb) |
| 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 | |
|---|---|
| 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 | |
|---|---|
| Transmission Gear - Seventh | 39.9 km/h (24.8 mile/h) |
| Transmission Gear - Fifth | 21.9 km/h (13.6 mile/h) |
| Transmission Gear - First | 5 km/h (3.1 mile/h) |
| Transmission Gear - Sixth | 29.6 km/h (18.4 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 - Fourth | 16.3 km/h (10.1 mile/h) |
| Transmission Gear - Eighth | 53.9 km/h (33.5 mile/h) |
| Transmission Gear - Reverse | 9.2 km/h (5.7 mile/h) |
| Implement Cycle Times | |
|---|---|
| Apron Raise | 2.95 s (2.95 s) |
| Bowl Raise | 3 s (3 s) |
| Ejector Retract | 6.7 s (6.7 s) |
| Bowl Lower | 3.5 s (3.5 s) |
| Apron Lower | 3.8 s (3.8 s) |
| Ejector Extend | 5.2 s (5.2 s) |
| Bail Lower | 3.2 s (3.2 s) |
| Bail Raise | 1.8 s (1.8 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
- 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
- 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
- Film arrangement – U.S. (ANSI)
- Film arrangement – International (ISO)