303.5E2 CR Hydraulic Excavator

Overview
Engine Model
Cat® C1.7
Net Power
24 hp
Operating Weight
8,209 lb
  • Exterior View
  • Interior View

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
Net Power
24 hp
Gross Power
25 hp
Bore
3 in
Stroke
4 in
Displacement
104 in3
Net Power (ISO 9249)
24 hp
Rated Net Power (ISO 9249)
24 hp
Note
Cat C1.7 engine meets U.S. EPA Tier 4 Final/EU Stage IIIB emission standards.
Engine Model
Cat® C1.7
Net Power
24 HP
Gross Power
25 HP
Bore
3 in
Displacement
104 in³
Stroke
4 in
Net Power - ISO 9249
24 HP
Note
Cat C1.7 engine meets U.S. EPA Tier 4 Final/EU Stage IIIB emission standards.
Rated Net Power - ISO 9249
24 HP

Weights

Operating Weight
8,209 lb
Operating Weight - With Cab
8,209 lb
Operating Weight with Canopy
7,803 lb
Note
Weight includes rubber tracks, bucket, operator, full fuel and auxiliary lines.
Operating Weight
8,209 lb
Note
Weight includes rubber tracks, bucket, operator, full fuel and auxiliary lines.
Operating Weight - With Canopy
7,803 lb
Note
7,803 lb

Swing System

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

Blade

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

Service Refill Capacities

Cooling System
2 gal
Engine Oil
2 gal
Hydraulic Tank
11 gal
Fuel Tank
12 gal
Hydraulic System
17 gal
Cooling System
2 gal (US)
Engine Oil
2 gal (US)
Hydraulic Tank
11 gal (US)
Fuel Tank
12 gal (US)
Hydraulic System
17 gal (US)

Travel System

Travel Speed – High
3 mph
Travel Speed – Low
2 mph
Maximum Traction Force - High Speed
3,822 lbf
Maximum Traction Force - Low Speed
6,992 lbf
Ground Pressure
5 psi
Travel Speed - High
3 mile/h
Travel Speed - Low
2 mile/h
Ground Pressure
5 psi

Hydraulic System

Pump Flow
26 gal/min
Operating Pressure - Equipment
3,553 psi
Operating Pressure - Travel
3,553 psi
Operating Pressure - Swing
3,132 psi
Auxiliary Circuit - Primary
19 gal/min
Auxiliary Circuit - Secondary
7 gal/min
Digging Force - Stick - Standard
4,249 lbf
Digging Force - Stick - Long
3,799 lbf
Digging Force = Bucket
7,419 lbf
Note
Load sensing hydraulics with variable displacement piston pump.
Digging Force - Bucket
7,419 lbf
Note
Load sensing hydraulics with variable displacement piston pump.

Operating Specifications

Maximum Dig Depth
125 in
Maximum Dig Depth
125 in

Operator Station

Operation and Hydraulic Control

Engine

COMPASS Control Panel

Compact Radius Design

Undercarriage

Dozer Blade

Coupler and Work Tool Options

Serviceability and Support

  • Stick
    • – Long stick (optional in Europe)
  • Stick
    • – Standard stick (Europe only)

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