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Caterpillar

623K Wheel Tractor-Scraper

Flywheel Power – Tractor/Scraper

304 kW (407 hp)

304 kW (407 hp)

Scraper Capacity – Heaped

23 yd³

17.6 m³

Top Speed – Loaded

33.5 mile/h

53.9 km/h

Overview

Quick loading, high travel speeds and the ability to load and dump on the run yield fast cycle times, allowing Cat Wheel Tractor-Scrapers to consistently deliver high productivity at the lowest cost per ton.

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Exterior

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Interior

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Features

Details

Specifications

Spec Value
Top Speed – Loaded 33.5 mile/h 53.9 km/h
Number of Flights 15 15
Operating Weight – Empty 88061 lb 39937 kg
180° Curb-to-Curb Turning Width 38.71 ft 11.8 m
Overall Shipping Height 12.37 ft 3.77 m
Overall Length 45.18 ft 13.77 m
Maximum Depth of Spread 18.3 in 465 mm
Fuel Tank Refill Capacity – Scraper 201 gal (US) 763 l
Scraper Capacity – Struck 18.8 yd³ 14.4 m³
Scraper Capacity – Heaped 23 yd³ 17.6 m³
Rated Load 25 038 kg (55,200 lb); 25.1 tonnes (27.6 tons) 25 038 kg (55,200 lb); 25.1 tonnes (27.6 tons)
Tires – Tractor Drive 33.25R29**E3 33.25R29**E3
Width – Cut 10.3 ft 3.14 m
Elevator Flight Spacing 20 in 520 mm
Overall Width 11.71 ft 3.57 m
Maximum Depth of Cut 10.3 in 262 mm
Maximum Floor Opening 4.4 ft 1.34 m
Tires – Scraper 33.25R29**E3 33.25R29**E3
Spec Value
Flywheel Power – Tractor/Scraper 304 kW (407 hp) 304 kW (407 hp)
Rated Engine RPM 2000 r/min 2000 r/min
Engine Model Cat C13 Cat C13
Flywheel Power – Tractor 407 HP 304 kW
Note C13 engine emits equivalent to U.S. EPA Tier 2/EU Stage II or U.S. EPA Tier 3/EU Stage III. C13 engine emits equivalent to U.S. EPA Tier 2/EU Stage II or U.S. EPA Tier 3/EU Stage III.
Spec Value
Top Speed – Loaded 33.5 mile/h 53.9 km/h
Spec Value
Scraper Capacity – Heaped 23 yd³ 17.6 m³
Spec Value
Fuel Tank 216.09 gal (US) 818 l
Crankcase 8.08 gal (US) 30.58 l
Cooling System 11.89 gal (US) 45 l
Hydraulic System 21.926 gal (US) 83 l
Transmission System 24.76 gal (US) 93 l
Spec Value
Height – Overall Shipping 158.9 in 4037 mm
Length – Overall Machine 542 in 13767 mm
Width – Overall Machine 141.1 in 3585 mm
Height – Top of Cab 142.6 in 3621 mm
Height – Scraper Blade Maximum 20.5 in 520 mm
Width – Tractor 133.1 in 3381 mm
Width – Inside of Bowl 120 in 3048 mm
Width – Outside Rear Tires 128.9 in 3275 mm
Front of Tractor to Front Axle 122.8 in 3119 mm
Wheel Base 329.5 in 8370 mm
Rear Axle – Rear of Machine 89.7 in 2278 mm
Ground Clearance – Tractor 21.9 in 557 mm
Width – Overall Machine – Ladder Down 149.2 in 3790 mm
Axle to Vertical Hitch Pin 17 in 432 mm
Width – Rear Tire Centers 90.2 in 2290 mm
Height – Top of Elevator 148.3 in 3768 mm
Spec Value
ROPS/FOPS Meets ISO standards Meets ISO standards
Exterior Sound Level The exterior sound power level for the standard machine (ISO 6393) is 111.5 dB(A). The exterior sound power level for the standard machine (ISO 6393) is 111.5 dB(A).
Spec Value
Reverse Alarm ISO 9533:2010 ISO 9533:2010
Steering System ISO 5010:2007 ISO 5010:2007
Rollover Protection Structure (ROPS) ISO 3471:2008 for up to 17 084 kg (37,664 lb) ISO 3471:2008 for up to 17 084 kg (37,664 lb)
Seat Belt SAE J386:JUN1985 SAE J386:JUN1985
Falling Object Protective Structure (FOPS) ISO 3449:2005 Level II ISO 3449:2005 Level II
Brakes ISO 3450:2011 ISO 3450:2011
Spec Value
Transmission Gear – Reverse 5.7 mile/h 9.2 km/h
Transmission Gear – Sixth 18.4 mile/h 29.6 km/h
Transmission Gear – Third 7.5 mile/h 12.1 km/h
Transmission Gear – Second 5.5 mile/h 8.9 km/h
Transmission Gear – Fifth 13.6 mile/h 21.9 km/h
Transmission Gear – Seventh 24.8 mile/h 39.9 km/h
Transmission Gear – First 3.1 mile/h 5 km/h
Transmission Gear – Eighth 33.5 mile/h 53.9 km/h
Transmission Gear – Fourth 10.1 mile/h 16.3 km/h
Spec Value
Ejector Retract 9.7 s 9.7 s
Bowl Raise 3 s 3 s
Bowl Lower 3.5 s 3.5 s
Ejector Extend 6.45 s 6.45 s

Standard Equipment

NOTE

  • Standard and optional equipment may vary. Consult your Cat dealer for details.

POWER TRAIN – TRACTOR

  • Cat C13
  • 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:
    – Regeneration control
    – Parking brake
  • 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
    – 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

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
    – 17.6 m³ (23 yd³), heaped
    – 13.5 m³ (17.6 yd³), struck
  • Vandalism locks
  • Elevator with 15 flights
  • 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
  • Product Link
  • Cat Grade Control with Load Assist

WORK LIGHT ATTACHMENTS

  • HID work lights

AMBIENT CAPABILITY ARRANGEMENTS

  • Cooling, high ambient HRC
  • Extended Life Coolant, -50° C (-58° F)
  • 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
  • Wiring group
  • Year of manufacture plate

SERVICE INSTRUCTIONS

  • Film arrangement – U.S. (ANSI)
  • Film arrangement – International (ISO)

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