303E CR Mini Hydraulic Excavator CAT
303E CR Mini Hydraulic Excavator CAT
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Gross Power
Net Power 18.5 kW 24.8 hp
17.5 kW 23.5 hp ts • ~.J --0 ••••
3310 kg
3530 kg 7,297 lb Operating Weight with Canopy
Operating Weight with Cab 7,782 lb
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The Cat° 303E CR
Mini Hydraulic
Excavator delivers
high performance,
durability and
versatility in a
compact design
to help you work
in a variety of
applications.
Contents
Solid Performance in a Small Package 4
Productivity and Durability 5
Superior Operating Experience 6
Simple Service and Maintenance Access 7
Unmatched Support and Solutions 8
Specifications 9
Standard and Optional Equipment 11
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Solid Performance in a Small Package Compact and efficient design provides superior power.
Compact Radius
The 303E allows you to easily reposition
within a confined space and increase your
overall productivity. Proficient movement
is enhanced as a result of the limited
tailswing and swing boom design. Transport
With an operating weight of 3200 kg
(7,055 lb) and width of 1550 mm (60 in) the
303E is simple to load and position on a
trailer with tie down points — getting you
to the job site quicker. Fuel Economy
Powered by the C1.3 engine, the 303E
offers the performance and power
required for your job with minimal fuel
consumption.
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Productivity and Durability
Designed for reliability.
Auxiliary Hydraulics
The 303E is ready to work. Hammer and two way lines with quick disconnect fittings are standard on every machine.
The quick disconnects are located close to the tool to reduce hose length and decrease owning and operating costs associated
with hose replacement.
Hose routings provide superior protection and cylinder guards decrease opportunity for machine damage.
Thumb Ready Stick
The machine is configured with brackets and relief valves for simple and cost effective mounting of a hydraulic thumb.
Dozer Blade
The durable blade and dozer float function provide the required design and capability to increase overall efficiency.
Ground leveling and finishing applications are fast and easy with a single lever controlling all blade operation — up, down
and float.
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Spacious and Ergonomic Working Environment
Your safety and comfort is incorporated into the design of every Cat machine.
The adjustable suspension seat, retractable seat belt and adjustable wrist rests
allow you to customize the operating station to meet your needs. Ergonomically
designed joystick control and travel levers reduce fatigue and improve productivity.
An easy to use pattern control selector and informative gauge panel ensure
optimal operation.
Cat Interlock System aids in job site safety. When the hydraulic lockout lever
is in the up position no operational function is possible — including travel.
Travel alarm as standard safety offering. An audible alarm alerts job site
operators of machine travel (optional in Europe).
ROPS/TOPS/TOP GUARD certification ensures the machine is prepared to
protect you.
'Cab unit includes sliding door and openable front window/removable lower window
Superior Operating Experience Safety and comfort all day.
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Simple Service and Maintenance Access
Low cost of ownership.
Easy Maintenance Access and
Extended Service Intervals
Ease of access to daily maintenance check points ensures your
machine is in prime condition to complete any task.
Engine and hydraulic hoods are simple to open and offer
outstanding visibility and convenience to check points.
500 hour engine oil and fitter change period reduces operating
costs and machine downtime.
Easy access to the engine oil check and fill, vertically mounted
engine oil fitter, starter motor and afternator, as well as the
radiator and oil cooler all result in simplified cleaning and
reduced maintenance times.
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Unmatched Support and Solutions Equipment, service and attachments to meet your needs.
Customized Solutions for Any Application
A range of tools is available to take advantage of the machine's
versatility. All tools are matched to the machine to optimize
performance and deliver excellent value through high
productivity and long life.
Customer Support You Can Count on
Your Cat dealer is ready to assist you with your
purchase decision and everything after.
Financing packages are flexible to meet your needs.
Superior parts availability keeps you working.
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303E CR Mini Hydraulic Excavator Specifications
Pump Flow at 2,400 rpm
Operating Pressure — Equipment
Operating Pressure — Travel
Operating Pressure — Swing
Auxiliary Circuit — Primary
(186 bar/2,734 psi)
Auxiliary Circuit - Secondary 27 Limin 7.1 gal/min
(174 bar/2,524 psi)
Digging Force - Stick (standard) 16.6 kN
Digging Force — Bucket 28.4 kN Swing System
Engine Model Cat CI .3 Nlachine Swing Speed 9 rpm
Rated Net Power @ 2,400 rpm Boom Swing - Left• 80°
ISO 9249/EEC 80/1269 17.5 kW 23.5 hp Boom Swing — Right 50°
•Automatic swing brake, spring applied, hydraulic release. Gross Power
ISO 14396 18.5 kW 24.8 hp
Bore 78 mm 3.1 in
Stroke 88 mm 3.5 in Width 1550 mm 60 in
Displacement 126L 77 in' Height 335 mm 13 in
Dig Depth 472 mm 19 in
Lift Height 402 mm 16in
Operating Weight with Canopy 3310 kg 7,297 lb
Operating Weight with Cab 3530 kg 7,782 lb
•Weight includes counterweight, rubber tracks, bucket, operator,
full fuel and auxiliary lines. Number of Carrier Rollers 3
Number of Track Rollers 3
Track Roller Type Double Flange
Travel Speed — High
Travel Speed — Low
Max Traction Force — High Speed 15.2 kN
Max Traction Force - Low Speed 30.9 kN
Ground Pressure 4.5 km/h 2.8 mph
2.4 km/h 1.5 mph
3.417 lb
6.946 lb
32.2 kPa 4.6 psi
Gradeahility (maximum) 30°
Service Refill Capacities
Cooling System
Engine Oil
Fuel Tank 4.7 L 1.2 gal
5.7L 1.5 gal
45L 11.8 gal
47L I2A gal Hydraulic Tank
Hydraulic System 65 L 17.2 gal
Hydraulic System
Load Sensing Hydraulics with Variable Displacement Piston Pump
87.6 Llmin 23.1 gal/min
245 bar 3,553 psi
245 bar 3,553 psi
181 bar 2,625 psi
60 Limin 15.9 gaVmin
3,731 lb
6,384 lb Certification — Cab and Canopy
Roll Over Protective Structure (ROPS) ISO 12117-2
Tip Over Protective Structure (TOPS) ISO 12117
Top Guard ISO 10262 (Level I)
Lift Capacities at Ground Level*
Litt Point Radius 3000 mm (911 4000 mm (13'11
Front Side Front Side
Blade Down kg 1170 540 670 310
(Ib) (2,580) (1,191) (1,477) (684)
Blade Up kg 570 480 280 280
(Ib) (1,257) (1,058) (617) (617)
•The above loads are in coral:lance with hydraulic excavator lift
capacity rating standard ISO 10567:2007 and they do not exceed
87% of hydraulic lifting capacity or 75% of tipping capacity.
The excavator bucket weight is not included on this chart.
Lifting capacities are for standard stick.
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303E CR Mini Hydraulic Excavator Specifications
Dii
All dimensions are approximate.
11
L
1 Dig Depth 2750 mm 108 in
2 Vertical Wall 1960 mm 77 in
3 Maximum Reach at Ground Level 4810 nun 189 in
4 Maximum Reach 4950 mm 195 in
5 Maximum Dig Height 4530 nun 178 in
6 Maximum Dump Clearance 3150 nun I24in
7 Boom In Reach 2110 mm 83 in
8 Tail Swing 890 mm 35 in
9 Maximum Blade Height 402 mm 16 in
10 Maximum Blade Depth 472 mm 19 in
11 Boom Height in Shipping Position 1590 mm 63 in
12 O/A Shipping Height 2500 mm 98 in
13 Swing Bearing Height 565 mm 22 in
14 O/A Undercarriage Length 2210 mm 87 in
15 O/A Shipping Length 4470 mm 176 in
16 Boom Swing Right 825 mm 32 in
17 Boom Swing Left 610 mm 24m
18 Track Belt/Shoe Width 300 mm 12 in
19 O/A Track Width 1550 mm 60 in
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En 303E CR Standard and Optional Equipment
Prdard Equipment
Standard equipment may vary. Consult your Cat dealer for details.
• I-way and 2-way (combined function)
auxiliary hydraulic lines
• Adjustable armrests
• Alternator
• 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 I), ROPS ISO 12117-2 and
TOPS ISO 12117 • Coat hook
• Cup holder
• Control pattern changer
• Dozer blade with float function
• Foot travel pedals
• Gauges or indicators for fuel level engine
coolant temperature, hour meter, engine oil
pressure, air cleaner, alternator and glow
plugs, service interval
• 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
• Standard stick
• Suspension seat, vinyl covered
• "Thumb ready" sticks
• Travel alarm (optional in Europe)
Option!' quipment
Optional equipment may vary. Consult your Cat dealer for details.
• Beacon socket for canopy machines
• Boom mounted light
• Cab, Top Guard ISO 10262 (Level I),
ROPS ISO 12117-2 and TOPS ISO 12117 • High back suspension seat, fabric covered
• Mechanical quick coupler • Mirrors for cab and canopy
• Steel track
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For more complete information on Cat products, dealer services, and industry solutions, visit us on the web AEHQ7477 (06-20151
at www.catcom
ID 2015 Caterpillar
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📷 Images in this document (12 detected; 6 largest described)
AI-generated factual descriptions of embedded images (llava:13b). These are searchable across the corpus.
[Image 1] The image shows a person operating a yellow Caterpillar (CAT) excavator in an outdoor setting. The individual is wearing a high-visibility vest and a hard hat, indicating safety precautions. The excavator is equipped with a bucket attachment, and the person appears to be in the process of using it for some form of construction or landscaping work. The background features a clear sky and a line of
[Image 2] The image shows a piece of heavy equipment, specifically a Caterpillar 303E CR Mini Hydraulic Excavator, as indicated by the visible branding and model information. The excavator is parked on a dirt surface, which suggests an outdoor construction or excavation site. There is a person visible in the cab of the excavator, but their identity is not clear. The image appears to be a promotional or info
[Image 3] The image shows a piece of construction equipment, specifically a hydraulic excavator, which is a type of heavy machinery used for digging and moving materials. The excavator is parked on a grassy area with trees in the background, suggesting an outdoor setting, possibly a construction site or a park. There is a yellow banner with text on it, which appears to be an advertisement or informational s
[Image 4] The image appears to be a page from a brochure or informational document. The top of the page has a heading that reads "Unmatched support and solutions" followed by a subheading "Equipment, service, and attachments for any application." Below the headings, there is a section titled "Customer support" with a bullet point that says "Customer support can do more."
The page features three photographs
[Image 5] The image appears to be a composite of two photographs, one on top of the other. The top photograph shows a close-up of a control panel with various buttons and switches, likely from a piece of heavy machinery or equipment. The bottom photograph shows a yellow compact track loader, which is a type of construction vehicle with a small front loader.
The image also contains text overlays. The text a
[Image 6] The image appears to be a page from a document or brochure related to service and maintenance access for a piece of machinery, possibly a vehicle or a piece of equipment. The page is divided into two sections. On the left side, there is a photograph of the machinery with its engine compartment open, revealing various components such as a radiator, fan, and wiring. The machinery is yellow and black