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621H

621H Standard Equipment

POWER TRAIN - TRACTOR

  • C13 ACERT engine with MEUI
  • Cat Engine Brake
  • Electric start, 24 Volt
  • Air cleaner, dry type with precleaner
  • Fan, hydraulic
  • Diesel Particulate Filter (DPF) aftertreatment (for engine meeting U.S. EPA Tier 4 Interim/EU Stage IIIB emission standards)
  • Ground level engine shutdown
  • Radiator, aluminum unit core
  • Guard, crankcase
  • Muffler (for engines achieving U.S. EPA Tier 3/EU Stage IIIA emission levels)
  • Starting aid, ether
  • Braking system: • Primary and Secondary, wet disc, hydraulic • Parking, hydraulically-released, spring-applied
  • Throttle Lock
  • Transmission: • 8-speed planetary powershift • ECPC Control • APECS software • Programmable top gear selection • Transmission hold • Differential lock • Guard, power train

POWER TRAIN - SCRAPER

  • Braking system: • Primary and Secondary, wet disc, hydraulic • Parking, hydraulically-released, spring-applied
  • 4-speed (torque converter drive) transmission, planetary powershift

ELECTRICAL - TRACTOR

  • Alternator, 150 Amp
  • Batteries (4), 12 Volt, 1,000 CCA, maintenance free, high output
  • Electrical system, 24V
  • Lighting system: • Headlights, halogen • Turn signals with hazard function • LED Floodlights, halogen (2), cutting edge (1), bowl (2), 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, 12V
  • ROPS/FOPS cab, pressurized
  • Keypad switches
  • Safety tab rocker switches
  • Parking brake
  • Seat belt, static two-piece
  • Seat, air suspension, Comfort Series 3, rotates 30 degrees
  • Steering wheel, tilt, telescoping, padded
  • Storage in dash if WAVS or Cat Grade Control is not equipped
  • 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 temp • Engine oil temp • Hydraulic oil temp • DPF temp • Fuel level • Park brake • Implement lockout • Brake system • Regeneration required • Throttle lock • System voltage • Secondary steering • Bail down • Differential lock • Apron float • Transmission hold • Cushion hitch • High beam lights • Action lamp • Engine speed, rpm • Gear selection out • DPF fill levels

FLUIDS

  • Extended Life Coolant to -37° C (-34° F)

OTHER STANDARD EQUIPMENT - TRACTOR

  • Cushion hitch
  • Accumulators (cushion hitch) with Canadian Registration Number (CRN)
  • Fast oil change
  • Fenders, non metallic
  • Heater, engine coolant 120V
  • Tow pin, front
  • Vandalism locks

OTHER STANDARD EQUIPMENT - SCRAPER

  • Quick drop bowl valve
  • Vandalism locks
  • Extended push block

Select Units

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.

Engine

  • Maximum Power 407.0 HP 304.0 kW
  • Tractor Cat® C13 ACERT™ Cat® C13 ACERT™

Tractor Engine

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

Scraper Bowl

  • Scraper Capacity - Heaped 24.0 yd³ 18.3 m³
  • Rated Load 57600.0 lb 26127.0 kg
  • Heaped Capacity 24.0 yd³ 18.3 m³
  • Maximum Apron Closure Force 50580.0 lb 225.0 kN
  • Maximum Apron Opening 69.6 in 1767.0 mm
  • Maximum Depth of Cut 12.4 in 315.0 mm
  • Maximum Depth of Spread 21.3 in 540.0 mm
  • Maximum Ground Clearance at Cutting Edge 23.4 in 594.0 mm
  • Maximum Hydraulic Penetration Force 130390.0 lb 580.0 kN
  • Struck Capacity 17.1 yd³ 13.0 m³
  • Thickness - Cutting Edge 0.9 in 22.0 mm
  • Width - Cut - Outside Router Bits 123.5 in 3136.0 mm

Transmission

  • Top Speed - Loaded 33.5 mile/h 53.9 km/h
  • 1 Forward 3.1 mile/h 5.0 km/h
  • 2 Forward 5.5 mile/h 8.9 km/h
  • 3 Forward 7.5 mile/h 12.1 km/h
  • 4 Forward 10.1 mile/h 16.3 km/h
  • 5 Forward 13.6 mile/h 21.9 km/h
  • 6 Forward 18.4 mile/h 29.6 km/h
  • 7 Forward 24.8 mile/h 39.9 km/h
  • 8 Forward 33.5 mile/h 53.9 km/h
  • Reverse 5.7 mile/h 9.2 km/h

Hydraulics

  • Cushion Hitch Circuit Flow 10.6 gal/min 40.1 l/min
  • Cushion Hitch Cylinder Bore 5.5 in 140.0 mm
  • Cushion Hitch Cylinder Stroke 9.9 in 251.0 mm
  • Push/Pull Bail Cylinder Bore 3.5 in 90.0 mm
  • Push/Pull Bail Cylinder Stroke 16.3 in 415.0 mm
  • Scraper Circuit Flow 66.0 gal/min 250.0 l/min
  • Secondary Steering Circuit Flow 10.3 gal/min 39.0 l/min
  • Steering Circuit Flow 61.8 gal/min 234.0 l/min
  • Steering Cylinder - Bore 5.0 in 127.0 mm
  • Steering Cylinder - Stroke 44.4 in 1128.0 mm
  • Bowl Cylinder Bore 5.5 in 140.0 mm
  • Bowl Cylinder Stroke 33.3 in 845.0 mm
  • Apron Cylinder Bore 5.9 in 150.0 mm
  • Apron Cylinder Stroke 22.2 in 565.0 mm
  • Ejector Cylinder Bore 5.5 in 140.0 mm
  • Ejector Cylinder Stroke 61.0 in 1550.0 mm

Steering

  • Steering Angle - Right 85º 85º
  • Steering Angle - Left 82º 82º

Service Refill Capacities - Tractor

  • Engine Crankcase 8.75 gal (US) 33.0 l
  • Windshield Washer Reservoir 1.3 gal (US) 5.0 l
  • Transmission 18.5 gal (US) 70.0 l
  • Differential 45.8 gal (US) 173.0 l
  • Final Drive - Each 5.0 gal (US) 19.0 l
  • Cooling System 17.0 gal (US) 64.0 l
  • Hydraulic Reservoir 22.0 gal (US) 83.0 l

Service Refill Capacities - Scraper

  • Fuel Tank 201.6 gal (US) 763.0 l
  • Non-Powered Wheel 1.1 gal (US) 4.0 l

Standards

  • Standards Standards Standards

Tractor Engine - U.S. EPA Tier 4 Interim/EU Stage IIIB

  • Bore 5.1 in 130.0 mm
  • Displacement 763.0 in³ 12.5 l
  • Maximum Power - All Gears - ISO 14396 407.0 HP 304.0 kW
  • Maximum Power Reference Engine Speed 1700.0 r/min 1700.0 r/min
  • Stroke 6.2 in 157.0 mm
  • Tractor Engine Cat® C13 ACERT™ Cat® C13 ACERT™

Tractor Engine - Prior U.S. EPA Tier 3/EU Stage IIIA Configuration*

  • Bore 5.1 in 130.0 mm
  • Displacement 763.0 in³ 12.5 l
  • Maximum Power - All Gears - ISO 14396 407.0 HP 304.0 kW
  • Maximum Power Reference Engine Speed 1700.0 r/min 1700.0 r/min
  • Stroke 6.2 in 157.0 mm
  • Tractor Engine Cat® C13 ACERT™ Cat® C13 ACERT™

Weights - Machines Meeting U.S. EPA Tier 4 Interim/EU Stage IIIB Emission Standards

  • Push-Pull - Loaded - Based on a Rated Load 141141.0 lb 63567.0 kg
  • Push-Pull - Operating Weight - Full Fuel Tanks 82541.0 lb 37440.0 kg
  • Push-Pull - Shipping Weight - 10% Fuel 81090.0 lb 36782.0 kg
  • Standard - Loaded, Based on a Rated Load 137374.0 lb 62312.0 kg
  • Standard - Operating Weight - Full Fuel Tanks 79774.0 lb 36185.0 kg
  • Standard - Shipping Weight - 10% fuel 78279.0 lb 35507.0 kg

Weights - Machines Achieving Prior U.S. EPA Tier 3/EU Stage IIIA Emission Levels

  • Push-Pull - Loaded - Based on a Rated Load 135597.0 lb 63320.0 kg
  • Push-Pull - Operating Weight - Full Fuel Tanks 81996.0 lb 37193.0 kg
  • Push-Pull - Shipping Weight - 10% Fuel 80502.0 lb 36515.0 kg
  • Standard - Loaded, Based on a Rated Load 136830.0 lb 62065.0 kg
  • Standard - Operating Weight - Full Fuel Tanks 79230.0 lb 35938.0 kg
  • Standard - Shipping Weight - 10% fuel 77735.0 lb 35260.0 kg

Operator's Station

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Operator Comfort

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Power Train - Engine

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Power Train - Transmission

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Structures

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Scraper Bowl

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Loading Options

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Integrated Technologies

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Complete Customer Support

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Safety

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