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303.5E2 CR

Operator Station

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Operation and Hydraulic Control

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Engine

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COMPASS Control Panel

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Compact Radius Design

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Undercarriage

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Dozer Blade

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Coupler and Work Tool Options

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Serviceability and Support

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Overview

The Cat E2 Series Mini Hydraulic Excavators are designed to carry on the solid performance of their E Series predecessors, while adding even greater value for the customer. The new High Definition Hydraulic (HDH) System, redesigned operator station and enhanced digital control panel specially designed for Cat Mini Excavators – COMPASS (Complete, Operation, Maintenance, Performance And Security System) – are all standard features that improve performance and increase value.

Engine

  • Engine Model Cat® C1.7 Cat® C1.7
  • Net Power 23.5 HP 17.5 kW
  • Gross Power 24.8 HP 18.5 kW
  • Bore 3.4 in 87.0 mm
  • Displacement 104.0 in³ 1.7 l
  • Stroke 3.6 in 92.4 mm
  • Net Power - ISO 9249 23.5 HP 17.5 kW
  • Note Cat C1.7 engine meets U.S. EPA Tier 4 Final/EU Stage IIIB emission standards. Cat C1.7 engine meets U.S. EPA Tier 4 Final/EU Stage IIIB emission standards.
  • Rated Net Power - ISO 9249 23.5 HP 17.5 kW

Weights

  • Operating Weight 8209.0 lb 3723.0 kg
  • Operating Weight - With Cab 8209.0 lb 3723.0 kg
  • Note Weight includes rubber tracks, bucket, operator, full fuel and auxiliary lines. Weight includes rubber tracks, bucket, operator, full fuel and auxiliary lines.
  • Operating Weight - With Canopy 7803.0 lb 3539.0 kg

Travel System

  • Ground Pressure 4.6 psi 31.7 kPa
  • Maximum Traction Force - High Speed 3822.0 lbf 17.0 kN
  • Maximum Traction Force - Low Speed 6992.0 lbf 31.1 kN
  • Travel Speed - High 2.9 mile/h 4.6 km/h
  • Travel Speed - Low 2.0 mile/h 3.2 km/h

Hydraulic System

  • Auxiliary Circuit - Primary 18.5 gal/min 70.0 l/min
  • Auxiliary Circuit - Secondary 6.6 gal/min 25.0 l/min
  • Digging Force - Stick - Long 3799.0 lbf 16.9 kN
  • Digging Force - Stick - Standard 4249.0 lbf 18.9 kN
  • Operating Pressure - Equipment 3553.0 psi 245.0 bar
  • Operating Pressure - Swing 3132.0 psi 216.0 bar
  • Operating Pressure - Travel 3553.0 psi 245.0 bar
  • Pump Flow 26.4 gal/min 100.0 l/min
  • Digging Force - Bucket 7419.0 lbf 33.0 kN
  • Note Load sensing hydraulics with variable displacement piston pump. Load sensing hydraulics with variable displacement piston pump.

Swing System

  • Machine Swing Speed 10.0 r/min 10.0 r/min
  • Boom Swing - Left - With Stop 55° 55°
  • Boom Swing - Left - Without Stop 80° 80°
  • Swing - Right 50° 50°

Blade

  • Width 70.0 in 1780.0 mm
  • Height 13.0 in 325.0 mm
  • Dig Depth 19.0 in 470.0 mm
  • Lift Height 16.0 in 400.0 mm

Service Refill Capacities

  • Cooling System 1.5 gal (US) 5.5 l
  • Engine Oil 1.8 gal (US) 7.0 l
  • Hydraulic Tank 11.2 gal (US) 42.3 l
  • Fuel Tank 12.2 gal (US) 46.0 l
  • Hydraulic System 17.2 gal (US) 65.0 l

Operating Specifications

  • Maximum Dig Depth 125.0 in 3180.0 mm

303.5E2 CR Standard Equipment

Stick

  • – Long stick (optional in Europe)

303.5E2 CR Optional Equipment

Stick

  • – Standard stick (Europe only)

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