303C CR Mini Hydraulic Excavators

Engineered by Caterpillar to deliver high levels of productivity, versatility and serviceability.

Comfort and Ease of Operation



Class leading space and top level feature lead to a comfortable and productive environment.

Impressive Cab Dimensions



The CR C Series gives the operator a comfortable and spacious working environment with excellent visibility. The clear flat floor space and superior operator legroom provide high levels of operator comfort and help minimize fatigue.

Optional Air Conditioning



Optional air conditioning or fan and sun blind package offers further operator comfort.

Sliding Cab Door



The sliding door system offers good access and maintains the machines compact dimensions to reduce the risk of damage.

Fully Pilot Operated Controls



Pilot operated controls on all services including travel levers and dozer function ensure that as new levels of controllability are maintained throughout the machine life.

Automatic Two Speed Function



Improves machine maneuverability around the job site. Increased productivity is achieved by balancing high speed travel requirements with controllability.

Joystick Mounted Auxiliary and Boom Swing Functions



The new joystick mounted position of these functions gives fingertip control and a clear cab floor.

Compact Radius Design



Compact radius design gives greater machine versatility and the capability to work within confined areas. The radius of the upper body stays within the width of the undercarriage so the operator can concentrate on the work being done without having to worry about the back of the machine.

High Level of Standard Comfort Features



Reclining suspension seat, power point, adjustable wrist rests and a cup holder are standard features on the Cat C CR machines.

Performance and Versatility



The range of Cat buckets and hydraulically powered tools are machine matched to optimize performance.

Fast, Powerful Digging



High digging forces and fast cycle times through smooth responsive hydraulics, ensure that the Cat C Series CR machines deliver the productivity that customers demand.

Load Sensing Hydraulics



Load sensing hydraulics optimize flow for smooth powerful performance and increased fuel economy.

Dozer Blade Float Function



The dozer float enables easy ground levelling for landscaping and finishing applications, as well as more efficient site cleanup.

Stick Options



A choice of standard or long stick enables matching of machine to application.

Hydraulic Thumb Ready Sticks



All Cat CR C Series machines come standard with stick mounted brackets, ready to fit a hydraulic thumb.

Auxiliary Lines and Connectors



The auxiliary lines and connectors including quick connections are fitted as standard, meaning the Cat 303C CR come ready to work. Hammer oneway and auger twoway auxiliary lines are also fitted as standard.

Mechanical Quick Coupler



The Cat Quick Coupler makes tool changes fast and easy. It maximizes performance as it is compatible with all standard work tools. Work tool versatility is further enhanced with the option of a second additional auxiliary supply.

Wide Range of Work Tools



These tools are designed to get the best out of the machine and deliver excellent value through high productivity and long life. Tools include ulli Digging bucketslili Ditch cleaning bucketslili Angling ditching bucketslili Hydraulic hammerslili Augersliul

Bucket Angle



High rotation bucket angle combines good spoil retention and flat back trench characteristics.

Low Operating Costs



Good access to main check points and major components makes servicing and maintaining the 303C CR easier.

Swing Out Rear Door



Provides access to major components and service points ulli Engine oil check and filllili Vertically mounted engine oil filter lili Starter motorlili Alternatorliul

Lifting Side Hood



Allows excellent access to ulli Air filterlili Main implement valvelili Auxiliary change over valvelili Accumulator lili Fuel filterlili Hydraulic tanklili Radiator and oil coolerliul

SOSSM Oil Sampling Valve



Allows easy sampling of the hydraulic fluid for preventative maintenance.

500 Hour Oil and Filter Change Period



Reduces operating costs and machine down time.

Front Linkage



Protected front linkage lines are routed above the boom and stick to help reduce damage and downtime.

End Dampening



End dampening on both boom and stick cylinders reduces shock loading, increasing component life and improving soil retention when loading at height.

Liner Bearings



Liner bearings in the swing casting deliver longer component life and reduced parts replacement costs.

Angle Blade Configuration



Increased versatility and productivity are offered with the Cat angle blade

Versatility and Productivity



The Cat C Series machine can be increased even further by ordering the angle dozer blade configuration.

Strong and Durable



The Cat hydraulic angle blade is engineered to be strong and durable with a hardened steel wear edge and good protection to cylinders and hydraulic lines.

Single Control Lever



All dozer functions are controlled from inside the cab, with fully proportional fingertip control to position the blade at any angle, from the start to 25 degrees left or right while travelling in either direction.

Full Pilot Control



Full pilot control means no cables or linkages to wear, keeping as new controllability throughout the machines life and reducing maintenance costs.

Angle Blade Positioning



The angle blade can be positioned straight ahead or angled up to 25 degrees to the left or right reducing the number of times required to backup and reposition when backfilling thus reducing operation time.

Load Sensing Hydraulics, High Traction Force and Auto 2Speed Travel



These features are standard on the Cat C series CR machines and ideally suited for getting the best out of the angling blade installation.

Excellent Blade Visibility



The compact radius design of the Cat C Series machines gives excellent visibility to the blade in any position, allowing the blade to be positioned behind the operator and away from the front linkage for better access when back dragging and finishing in tight areas.

Customer Support



Industryleading customer support is provided by the Cat dealer network.

Selection



Make detailed comparisons of the machines under consideration before you purchase. Your Cat dealer can give you precise answers to your questions, as well as estimate component life, preventive maintenance cost and the true cost of lost production.

Purchase



Look past initial price. Consider the flexible financing options available, as well as daytoday operating costs. Look at dealer services that can be included in the cost of the machine to yield lower equipment owning and operating costs over the long haul. Your Cat dealer can provide a package to meet your needs.

Operation



Improving operating techniques can boost your profits. Your Cat dealer has training literature, video tapes, classes and other ideas to help increase your productivity.

Equipment Maintenance Services



More and more equipment buyers are planning for effective maintenance before buying. Choose from your dealers wide range of maintenance services at the time you purchase your new machine. Repair option programs guarantee the cost of repairs up front. Services that help optimize machine performance include ulli Customer Support Agreementslili SOSSM and Coolant Sampling and Technical Analysislili Maintenance contractslili Scheduled technical inspectionsliul

Unmatched Product Support



You will find nearly all parts at our dealer parts counter. Cat dealers use a worldwide computer network to find instock parts to minimize machine downtime. Save money with genuine Cat Remanufactured parts. You receive the same warranty and reliability as new products at a cost savings of 4070 percent.


Engine
Engine model
Mitsubishi S3Q2
Net power
30 hp
Gross power
31 hp

Weights
Operating weight
7573 lb
Operating weight with cab
7835 lb

Dimensions
Max digging depth - standard stick
9.6 ft
Max reach ground level - standard stick
16.8 ft

Engine Dimensions
Bore
3.5 in
Stroke
4.1 in
Displacement
116 in3

Travel System
Travel speed - high
2.9 mph
Travel speed - low
1.6 mph
Gradeability (max) - high
30 Degrees

Hydraulic System
Operating pressures - equipment
3553 psi
Operating pressure - travel
3553 psi
Operating pressure - swing
2495 psi
Auxiliary circuit - primary (245 bar, 3550 psi)
15.9 gal/min
Digging forces - stick (standard)
4249 lb
Digging force - stick (long)
3799 lb
Digging force - bucket
7419 lb

Swing System
Machine swing speed
9 RPM
Boom swing - left (without stop)
80 Degrees
Boom swing - left (with stop)
55 Degrees
Boom Swing - right
50 Degrees

Sound Levels
Canopy
78 dB(A)
Cab
82 dB(A)

Blade
Width
61 in
Height
13 in
Dig depth
18 in
Lift height
16 in

Service Refill Capacities
Cooling system
1.6 gal
Engine oil
1.6 gal
Fuel tank
11.9 gal
Hydraulic tank
9.8 gal
Hydraulic system
17.2 gal