303.5E2 CR Hydraulic Excavator

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303.5E2 CR Hydraulic Excavator

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Product Specs

Hydraulic System

Digging Force - Stick - Long
3799lbf
Digging Force - Stick - Standard
4249lbf
Operating Pressure - Equipment
3553psi
Operating Pressure - Swing
3132psi
Operating Pressure - Travel
3553psi
Note
Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
Type
Load Sensing Hydraulics with Variable Displacement Piston Pump
Pump Flow at 2,200 rpm
26.4gal/min
Maximum Auxiliary Circuit - Secondary - Pressure at Pump
3553psi
Digging Force - Bucket
7419lbf
Maximum Auxiliary Circuit - Primary - Flow at Pump
15.9gal/min
Maximum Auxiliary Circuit - Primary - Pressure at Pump
3553psi
Maximum Auxiliary Circuit - Secondary - Flow at Pump
6.6gal/min

Engine

Note
Cat C1.7 engine meets U.S. EPA Tier 4 Final/EU Stage IIIB emission standards.
Net Power - ISO 9249
23.5HP
Engine Model
Cat® C1.7
Net Power
23.5HP
Gross Power
24.8HP
Stroke
3.6in
Bore
3.4in
Displacement
104in³
Rated Net Power - ISO 9249
23.5HP

Service Refill Capacities

Hydraulic System
17.2gal (US)
Engine Oil
1.8gal (US)
Fuel Tank
12.2gal (US)
Hydraulic Tank
11.2gal (US)
Cooling System
1.5gal (US)

Weights

Note
Weight includes rubber tracks, bucket, operator, full fuel and auxiliary lines.
Operating Weight
8209lb
Operating Weight - With Cab
8209lb
Operating Weight - With Canopy
7803lb

Swing System

Swing - Right
50°
Boom Swing - Left - Without Stop
80°
Boom Swing - Left - With Stop
55°
Machine Swing Speed
10r/min

Blade

Dig Depth
19in
Width
70in
Lift Height
16in
Height
13in

Travel System

Maximum Traction Force - High Speed
3822lbf
Maximum Traction Force - Low Speed
6992lbf
Travel Speed - High
2.9mile/h
Travel Speed - Low
2mile/h
Ground Pressure
4.6psi

Operating Specifications

Maximum Dig Depth
125in

Worktool Attachments

Equipment

  • Engine
    • Cat C1.7 Tier 4 Final diesel engine
    • Automatic engine idle
    • Automatic engine shut-off
    • Automatic two speed travel
    • Fuel and water separator
  • Hydraulic System
    • 1-way and 2-way (combined function)
    • Accumulator
    • Automatic swing parking brake
    • Auxiliary hydraulic lines
    • Adjustable auxiliary relief
    • Auxiliary line quick disconnects
    • Cat interlock system: hydraulic lockout
    • Continuous auxiliary flow
    • Ecology drain
    • Hydraulic oil cooler
    • High definition hydraulics
    • Load sensing/flow sharing
  • Operator Environment
    • 100% pilot control ergonomic joysticks
    • Adjustable armrests
    • COMPASS: complete, operation, maintenance, performance and security system
      – Multiple languages
    • Cup holder
    • Hydraulic neutral lockout bar
    • Literature holder
    • Site reference system: leveling
    • Tool storage area
    • Travel control pedals with hand levers
    • Washable floor mat
  • Undercarriage
    • Dozer blade with float function
    • Track, rubber belt, 300 mm (12 in) width
    • Tie down eyes on track frame
    • Towing eye on base frame
  • Front Linkage
    • 200 degree bucket rotation
    • Certified lifting eye on bucket linkage
    • Front shovel capable
    • Thumb ready stick
  • Electrical
    • 12 volt electrical system
    • 60 ampere alternator
    • 650 CCA maintenance free battery
    • Fuse box
    • Ignition key start/stop switch
    • Slow blow fuse
    • Warning horn
  • Lights And Mirrors
    • Boom light with time delay capability
  • Safety And Security
    • Anti-theft system (compass)
    • Caterpillar Corporate “One Key” System
    • Door locks
    • Lockable fuel cap
    • Retractable seat belt
    • Roll Over Protective Structure (ROPS) (ISO 12117-2)
    • Tip Over Protective Structure (TOPS) (ISO 12117)
    • Top guard – ISO 10262 (Level 1)
    • Travel alarm

Optional Equipment

  • Engine
    • Engine block heater
  • Hydraulic System
    • Quick coupler lines
    • Boom lowering check valve
    • Stick lowering check valve
    • Secondary auxiliary hydraulic lines
  • Operator Environment
    • Cab:
      – Air conditioning
      – Heat
      – High back suspension seat
      – Interior light
      – Interlocking front window system
      – Radio
      – Windshield wiper
  • Undercarriage
    • Power angle blade
    • Track, double grouser (steel), 300 mm (12 in)
  • Front Linkage
    • Quick coupler: manual or hydraulic
    • Thumb
    • Buckets
    • Full range of performance matched work tools
      – Auger, hammer, ripper
  • Lights And Mirrors
    • Light, cab with time delay capability
    • Mirror, canopy right
    • Mirror, canopy left
    • Mirror, cab rear
  • Safety And Security
    • Battery disconnect
    • Beacon socket
    • Front wire mesh guard
    • Rearview camera
    • Vandal guard
  • Technology
    • Product Link

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