Contents
Dimensions
| Overall Length | 542 in (13767 mm) |
| Wheelbase | 329.5 in (8370 mm) |
| Width – Overall Machine | 141.1 in (3585 mm) |
| Width – Overall Machine – Ladder Down | 149.2 in (3790 mm) |
| Width -Tractor | 133.1 in (3381 mm) |
| Width – Rear Tire Centers | 90.2 in (2290 mm) |
| Width – Inside of Bowl | 120 in (3048 mm) |
| Width – Outside Rear Tires | 128.9 in (3275 mm) |
| Height – Overall Shipping | 158.9 in (4037 mm) |
| Height to Top of Cab | 142.6 in (3621 mm) |
| Height of Top of Elevator | 148.3 in (3768 mm) |
| Ground Clearance | 21.9 in (557 mm) |
| Front of Tractor to Front Axle | 122.8 in (3119 mm) |
| Axle to Vertical Hitch Pin | 17 in (432 mm) |
| Height – Scraper Blade Maximum | 20.5 in (520 mm) |
| Rear Axle to Rear of Machine | 89.7 in (2278 mm) |
Scraper Bowl
| Scraper Capacity (Heaped) | 23.0 yd3 (17.6 m3) |
| Scraper Capacity (Struck) | 17.6 yd3 (13.5 m3) |
| Cut Width | 124 in (3150 mm) |
| Maximum Depth of Spread | 18.3 in (465 mm) |
| Maximum Depth of Cut | 10.3 in (262 mm) |
| Elevator Flight Spacing | 20 in (520 mm) |
| Maximum Floor Opening | 53 in (1344 mm) |
| Number of Flights | 15 |
Implement Cycle Times
| Bowl Raise | 3.0 sec |
| Bowl Lower | 3.5 sec |
| Ejector Extend | 6.45 sec |
| Ejector Retract | 9.7 sec |
Engine Details
| Number of Cylinders | 6 |
| Engine Make | Caterpillar |
| Engine Model | Cat C13 ACERT |
| Displacement | 762.8 cu in (12.5 L) |
| Bore | 5.12 in (130 mm) |
| Stroke | 6.18 in (157 mm) |
| Net Power | 407 hp (304 kW) |
| Power Measured @ | 2000 |
| Peak Torque | 1399 lb ft (1896 Nm) |
| Torque Measured @ | 1400 |
| Fuel System | Direct Injection |
| Aspiration | Turbocharged Aftercooled (TA) |
| Emission Standards | US EPA Tier 4 Final + EU Stage IV |
Operational Specs
| Operating Weight (Empty) | 88061 lb (39937 kg) |
| Rated Load Capacity | 55200 lb (25038 kg) |
| Operating Voltage | 24 V |
| Alternator | 150 amps |
| Battery | 4x 12 V, CCA 1000 |
| 180° Curb-To-Curb Turning Width | 38.71 ft in (11.8 m) |
| Tire Size (Tractor) | 33.25R29 |
| Tire Size (Scraper) | 33.25R29 |
Cab
| ROPS/FOPS | ISO 3471:2008 for up to 37664 lb (17084 kg) |
| Falling Object Protective Structure (FOPS) | ISO 3449:2005 Level II |
| Steering System | ISO 5010:2007 |
| Seat Belt | SAE J386:JUN1985 |
| Reverse Alarm | ISO 9533:2010 |
| Sound Level (exterior) | 111.5 dB(A) |
Transmission
| Type | 8-speed planetary power shift transmission |
| Number of Gears | 8F / 1R |
| Max Forward Speed | 33.5 mph (54 km/h) |
| Max Reverse Speed | 5.7 mph (9.2 km/h) |
| Service Brakes | Primary and secondary, wet disc, hydraulic brakes |
| Parking Brake | Hydraulic-released, spring-applied brake |
| Standard of Brakes | ISO 3450:1996 |
Service Refill Capacities
| Fuel Tank Capacity (Tractor) | 216 gal (818 L) |
| Fuel Tank Capacity (Scraper) | 201 gal (763 L) |
| DEF Tank Capacity | 8 gal (30.5 L) |
| Engine Oil Capacity | 8.1 gal (30.6 L) |
| Cooling System Capacity | 11.9 gal (45.1 L) |
| Hydraulic System Capacity | 22 gal (83 L) |
| Transmission Oil Capacity | 24.8 gal (93 L) |
How much fuel does a 623K use per hour when working normal use?
Fuel Consumption for Cat 623K Scraper:
– Medium Loading: ≅11.4 – 14.4 gal/hr (43.2 – 54.5 L/hr).
– High Loading: ≅14.4 – 18.0 gal/hr (54.5 – 68.1 L/hr).