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303.5E2 CR

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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

Units:
Engine Model Cat® C1.7 Cat® C1.7 Less
Net Power 23.5 hp 17.5 kW Less
Gross Power 24.8 hp 18.5 kW Less
Bore 3.4 in 87.0 mm Less
Stroke 3.6 in 92.4 mm Less
Displacement 104.0 in3 1.7 L Less
Net Power (ISO 9249) 23.5 hp 17.5 kW Less
Rated Net Power (ISO 9249) 23.5 hp 17.5 kW Less
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. Less

Weights

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

Travel System

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

Hydraulic System

Pump Flow 26.4 gal/min 100.0 L/min Less
Operating Pressure – Equipment 3553.0 psi 245.0 bar Less
Operating Pressure – Travel 3553.0 psi 245.0 bar Less
Operating Pressure – Swing 3132.0 psi 216.0 bar Less
Auxiliary Circuit – Primary 18.5 gal/min 70.0 L/min Less
Auxiliary Circuit – Secondary 6.6 gal/min 25.0 L/min Less
Digging Force = Stick (standard) 4249.0 lbf 18.9 kN Less
Digging Force = Stick (long) 3799.0 lbf 16.9 kN Less
Digging Force = Bucket 7419.0 lbf 33.0 kN Less
Note Load sensing hydraulics with variable displacement piston pump. Load sensing hydraulics with variable displacement piston pump. Less

Swing System

Machine Swing Speed 10.0 rpm 10.0 rpm Less
Boom Swing – Left (without stop) 80° 80° Less
Boom Swing – Left (with stop) 55° 55° Less
Swing – Right 50° 50° Less

Blade

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

Service Refill Capacities

Cooling System 1.5 gal 5.5 L Less
Engine Oil 1.8 gal 7.0 L Less
Hydraulic Tank 11.2 gal 42.3 L Less
Fuel Tank 12.2 gal 46.0 L Less
Hydraulic System 17.2 gal 65.0 L Less

Operating Specifications

Maximum Dig Depth 125.0 in 3180.0 mm Less

Operator Station

Productivity with Comfort and Quality


Operation and Hydraulic Control

Pushing Performance to the Limit


Engine

Intelligent Operation


COMPASS Control Panel

Complete, Operation, Maintenance, Performance and Security System


Compact Radius Design

Ease of Transport, Access and Operation


Undercarriage

A Strong Foundation


Dozer Blade

Maximize your productivity


Coupler and Work Tool Options

Versatility for Any Application


Serviceability and Support

Maximized Uptime and Ease of Service


303.5E2 CR Standard Equipment

1-way and 2-way (combined function) auxiliary hydraulic lines

Adjustable auxiliary flow control for work tools

Adjustable wrist rests

Alternator

Anti-theft security system

Automatic engine idle

Automatic swing park brake

Automatic two speed travel

Auxiliary line quick disconnects

Boom cylinder guard

Cab mounted work light

Canopy with Top Guard ISO 10262 (Level 1), ROPS ISO 12117-2 and TOPS ISO 12117

Coat hook

COMPASS display panel

Cup holder

Continuous flow

Control pattern changer (not available in Europe)

Dozer blade with float function

Floor mat

Foot travel pedals

Horn

Hydraulic oil cooler

Lifting eye on bucket linkage (standard equipment for all regions except Europe)

Lockable storage box

Low maintenance linkage pin joints

Maintenance free battery

Rubber track

Retractable seatbelt

Stick
  • – Long stick (optional in Europe)

Suspension seat, vinyl covered

Thumb Ready sticks (standard equipment for all regions except Europe)

Travel alarm (optional in Europe)

303.5E2 CR Optional Equipment

Air conditioning

Angle dozer blade with float function

Beacon socket for canopy machines

Boom check valve (Europe only)

Boom mounted light

Cab, radio ready with Top Guard ISO 10262 (Level 1), ROPS ISO 12117-2 and TOPS ISO 12117 with heater/defroster, interior light and windshield wiper/washer

Ecology drain valve for hydraulic tank

High back suspension seat, fabric covered

Hydraulic quick coupler lines

Lifting eye on bucket linkage (optional in Europe, standard for all other regions)

Stick
  • – Standard stick (Europe only)

Mechanical quick coupler

Mirrors for cab and canopy

Seatbelt, 75 mm (3 in) wide (optional in Europe, standard in all other regions)

Secondary auxiliary hydraulic lines

Steel track and steel track with rubber pads

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