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Excavators

303.5E2 CR Hydraulic Excavator

  • Engine Model
    Cat® C1.7
  • Net Power
    23.5 HP
  • Net Power
    23.5 hp
  • Engine Model
    Cat® C1.7
Engine
Engine Model
Cat® C1.7
Net Power
23.5 HP
Net Power
23.5 hp
Engine Model
Cat® C1.7
Gross Power
24.8 hp
Gross Power
24.8 HP
Bore
3.4 in
Stroke
3.6 in
Displacement
104 in3
Bore
3.4 in
Displacement
104 in³
Stroke
3.6 in
Net Power
23.5 hp
Rated Net Power
23.5 hp
Note
Cat C1.7 engine meets U.S. EPA Tier 4 Final/EU Stage IIIB emission standards.
Net Power
23.5 HP
Note
Cat C1.7 engine meets U.S. EPA Tier 4 Final/EU Stage IIIB emission standards.
Rated Net Power
23.5 HP
Weights
Operating Weight
8209 lb
Operating Weight
8209 lb
Operating Weight
8209 lb
Operating Weight with Canopy
7803 lb
Note
Weight includes rubber tracks, bucket, operator, full fuel and auxiliary lines.
Note
Weight includes rubber tracks, bucket, operator, full fuel and auxiliary lines.
Operating Weight
7803 lb
Travel System
Travel Speed
2.9 mph
Travel Speed
2.0 mph
Maximum Traction Force
3822 lbf
Maximum Traction Force
6992 lbf
Travel Speed
2.9 mile/h
Travel Speed
2 mile/h
Ground Pressure
4.6 psi
Ground Pressure
4.6 psi
Hydraulic System
Pump Flow
26.4 gal/min
Operating Pressure
3553 psi
Operating Pressure
3553 psi
Operating Pressure
3132 psi
Auxiliary Circuit
18.5 gal/min
Auxiliary Circuit
6.6 gal/min
Digging Force
4249 lbf
Digging Force
3799 lbf
Type
Load Sensing Hydraulics with Variable Displacement Piston Pump
Note
Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
Pump Flow at 2
26.4 gal/min
Maximum Auxiliary Circuit
6.6 gal/min
Maximum Auxiliary Circuit
3553 psi
Maximum Auxiliary Circuit
15.9 gal/min
Maximum Auxiliary Circuit
3553 psi
Digging Force
7419 lbf
Digging Force
7419 lbf
Swing System
Machine Swing Speed
10 rpm
Machine Swing Speed
10 r/min
Boom Swing
80°
Boom Swing
55°
Swing
50°
Blade
Width
70 in
Width
70 in
Height
13 in
Dig Depth
19 in
Lift Height
16 in
Service Refill Capacities
Cooling System
1.5 gal (US)
Engine Oil
1.8 gal (US)
Hydraulic Tank
11.2 gal (US)
Fuel Tank
12.2 gal (US)
Cooling System
1.5 gal
Engine Oil
1.8 gal
Hydraulic Tank
11.2 gal
Fuel Tank
12.2 gal
Hydraulic System
17.2 gal
Hydraulic System
17.2 gal (US)
Operating Specifications
Maximum Dig Depth
125 in
Maximum Dig Depth
125 in
  • 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
  • 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