Earthmoving

303.5E2 CR Hydraulic Excavator

Net Power:
23.5 HP
Operating Weight:
8209 lb
Maximum Dig Depth:
125 in
Operating Weight - With Cab:
8209 lb

Engine

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

Weights

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

Operating Specifications

Maximum Dig Depth
125in

Swing System

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

Blade

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

Service Refill Capacities

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

Travel System

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

Hydraulic System

Digging Force - Stick - Long
3799lbf
Digging Force - Stick - Standard
4249lbf
Operating Pressure - Equipment
3553psi
Operating Pressure - Swing
3132psi
Operating Pressure - Travel
3553psi
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
Note
Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
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

Standard 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