303 CR Mini Hydraulic Excavator

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Description

Technical Specifications

Benefits and Features

Equipment

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The Cat® 303 CR Mini Excavator delivers power and performance in a compact size to help you work in a wide range of applications.

Engine
Net Power	23.6 hp
Engine Model	C1.1 Turbo
Net Power - 2,400 rpm - ISO 9249, 80/1269/EEC	23.6 hp
Net Power - ISO 9249	24.7 hp
Bore	3 in
Stroke	3.2 in
Displacement	69 in³
Emissions	Meets U.S. EPA Tier 4 Final and EU Stage V emission standards.
Note	Advertised power is tested per the specified standard in effect at the time of manufacture.
Note (1)	Net power advertised is the power available at the flywheel when the engine is at the rated speed of 2,400 rpm and the engine is installed with the factory configured fan, air intake system, exhaust system and alternator with a minimum alternator load.
Weights
Operating Weight	7817 lb
Minimum Operating Weight with Canopy*	6670 lb
Maximum Operating Weight with Canopy**	7552 lb
Minimum Operating Weight with Cab*	6924 lb
Maximum Operating Weight with Cab**	7817 lb
EU: CE Plate Weight with Canopy***	6791 lb
EU: CE Plate Weight with Cab***	7012 lb
Note (1)	*Minimum Weight is based on fixed rubber tracks, operator, full fuel tank, standard stick, blade, no bucket and extra counterweight.
Note (2)	**Maximum Weight is based on steel tracks, operator, full fuel tank, long stick, blade, no bucket and extra counterweight.
Note (3)	***CE Plate Weight is based on the most common EU configuration. Includes 75 kg (165 lb) operator and full fuel tank and excludes bucket.
Dimensions - Long Stick
Dig Depth	116.1 in
Vertical Wall	81.5 in
Maximum Reach - Ground Level	201.2 in
Maximum Reach	206.3 in
Maximum Dig Height	183.1 in
Maximum Dump Clearance	130.3 in
Boom In Reach	74.2 in
Tail Swing without Counterweight	30.5 in
Tail Swing - with Extra Counterweight	35 in
Maximum Blade Depth	21.1 in
Maximum Blade Height	15.2 in
Boom Height - Shipping Position	75.6 in
O/A Shipping Height	97.6 in
Swing Bearing - Height	22.4 in
O/A Undercarriage Length	81.5 in
Overall Shipping Length*	179.5 in
Boom Swing - Right	34.3 in
Boom Swing - Left	25.2 in
Track Belt/Shoe Width	11.8 in
Track Width	61 in
Stick Length	61.4 in
Minimum Ground Clearance Below Undercarriage	12.2 in
Note	*Overall Shipping Length depends on blade position during shipment.
Service Refill Capacities
Cooling System	1.1 gal (US)
Engine Oil	1.1 gal (US)
Fuel Tank	11.9 gal (US)
Hydraulic Tank	4.8 gal (US)
Hydraulic System	9.2 gal (US)
Certification - Cab and Canopy
Roll Over Protective Structure (ROPS)	ISO 12117-2:2008
Tip Over Protective Structure (TOPS)	ISO 12117:1997
Top Guard	ISO 10262:1998 (Level I)
Travel System
Travel Speed - High	2.8 mile/h
Travel Speed - Low	1.6 mile/h
Maximum Traction Force - High Speed	3305 lbf
Maximum Traction Force - Low Speed	7059 lbf
Ground Pressure - Minimum Weight	4 psi
Ground Pressure - Maximum Weight	4.7 psi
Gradeability - Maximum	30 degrees
Dimensions - Standard Stick
Dig Depth	104.3 in
Vertical Wall	71.7 in
Maximum Reach - Ground Level	190.2 in
Maximum Reach	196.1 in
Maximum Dig Height	177.6 in
Maximum Dump Clearance	124.8 in
Boom In Reach	68.9 in
Tail Swing without Counterweight	30.5 in
Tail Swing with Extra Counterweight	35 in
Maximum Blade Depth	21.1 in
Maximum Blade Height	15.2 in
Boom Height - Shipping Position	63 in
O/A Shipping Height	97.6 in
Swing Bearing - Height	22.4 in
O/A Undercarriage Length	81.5 in
Overall Shipping Length*	177.6 in
Boom Swing - Right	34.3 in
Boom Swing - Left	25.2 in
Track Belt/Shoe Width	11.8 in
Minimum Ground Clearance Below Undercarriage	12.2 in
Stick Length	49.6 in
Note	*Overall Shipping Length depends on blade position during shipment.
Hydraulic System
Type	Load Sensing Hydraulics with Variable Displacement Piston Pump
Pump Flow at 2,400 rpm	26 gpm
Operating Pressure - Equipment	3553 psi
Operating Pressure - Travel	3553 psi
Operating Pressure - Swing	2553 psi
Auxiliary Circuit - Primary - Flow	17 gpm
Auxiliary Circuit - Primary - Pressure	3553 psi
Auxiliary Circuit - Secondary - Flow	7 gpm
Auxiliary Circuit - Secondary - Pressure	3553 psi
Digging Force - Stick - Standard	3732 lbf
Digging Force - Stick - Long	3327 lbf
Digging Force - Bucket	6385 lbf
Note	* Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
Swing System
Machine Swing Speed	9 r/min
Boom Swing - Left	75 °
Boom Swing - Right	50 °
Blade
Width	61 in
Height	13.8 in
Sustainability
Recyclability	95%
Weight Increase from Minimum Configuration
Cab	254 lb
Counterweight	221 lb
Extra Counterweight	551 lb
Long Stick	55 lb
Steel Tracks	276 lb
Sound
Operator Sound Pressure (ISO 6396:2008)	78 dB(A)
Average Exterior Sound Pressure (ISO 6395:2008)	94 dB(A)
Note	European Union Directive “2000/14/EC”
Air Conditioning System
Air Conditioning	The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a or R1234yf (Europe) (Global Warming Potential = 1430). See label or instruction manual for gas refrigerant identification. The system contains 0.75 kg (1

ALL DAY COMFORT

Choose either a canopy or a sealed and pressurized cab which can be equipped with air conditioning, adjustable wrist rests, and a suspension seat option to help keep you working comfortably all day long.

EASY TO OPERATE

Controls are easy to use and the intuitive Next Generation LCD monitor provides easy to read machine information. An advanced touchscreen monitor can also be equipped.

STICK STEER TRAVEL MODE

Moving around the job site is even easier with the Cat Stick Steer option. Easily switch from traditional travel controls with levers and pedals to joystick controls to move the machine and to operate the blade. The benefit of less effort and improved control is in your hands!

BIG PERFORMANCE IN A COMPACT DESIGN

Strong lift and dig performance helps you get the job done faster. The compact radius design lets you access and work in the tightest areas. Dozer float allows for easy clean up.

SAFETY ON THE JOB SITE

Your safety is our top priority. The Cat mini excavator is designed to help keep you safe on the job. Courtesy work lights and a fluorescent retractable seat belt with optional seat belt reminder system are just a couple of the safety features we’ve built into the machine.

SIMPLE SERVICE FOR LESS DOWNTIME

Maintenance is quick and easy on the Cat mini excavator. Routine check points are easy to access at ground level through the side doors. The unique tilt up cab or canopy lets you reach additional service areas when needed.

LOWER OPERATING COSTS

Equipped with features such as auto idle, auto engine shutdown, and efficient hydraulics with a variable displacement pump, the Cat mini excavator was designed with reducing your operating costs in mind.

UNMATCHED DEALER SUPPORT

Your Cat dealer is here to help you reach your business goals. From providing equipment solutions to operator training to service needs and beyond, your Cat dealer is ready to help.

SUSTAINABILITY

The Cat® C1.1 engine meets U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 emission standards.
Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) or ULSD blended with the following lower-carbon intensity fuels up to: 20% biodiesel FAME (fatty acid methyl ester) * or 100% renewable diesel, HVO (hydrotreated vegetable oil) and GTL (gas-to-liquid) fuels. Refer to guidelines for successful application. Please consult your Cat dealer or “Caterpillar Machine Fluids Recommendations” (SEBU6250) for details.
Auto Idle helps reduce unnecessary fuel burn and greenhouse gas emissions by allowing the engine to automatically go into idle mode when the machine is not working.
Engine Idle Shutdown Timer reduces fuel burn, greenhouse gas emissions and unnecessary idle time by shutting down the machine after a pre-set idling period.
Cruise control helps you maintain a constant speed as you travel across your jobsite saving fuel and reducing greenhouse gas emissions.
The Cat® Seat Belt Reminder provides audible and visual warnings to remind operators to buckle up during machine operation. The easy-to-install system is compatible with all equipment brands to help ensure operator safety.
Extended maintenance intervals not only reduce downtime but decrease the amount of fluid and filters that are replaced over the life of the machine.
Remote Flash minimizes downtime and maintenance time while keeping your asset running with maximum efficiency. Alerts for machine updates are sent virtually from your Cat dealer and updates can be deployed without a dealer technician needing to be onsite.(if equipped)
Remote Troubleshoot decreases maintenance time and keeps your machine running with maximum efficiency by allowing your Cat dealer to virtually test the machine while working. Once a problem is identified, a technician can fix it the first time, saving time and money.(if equipped)

*Engines with no aftertreatment devices can use higher blends, up to 100% biodiesel. (for use of blends higher than 20% biodiesel, consult your Cat dealer)

Standard Equipment:

Engine
- Cat C1.1 Turbo Engine (U.S. EPA Tier 4 Final/EU Stage V)
- Cat C1.1 Turbo Engine (U.S. EPA Tier 4 Final/EU Stage V)
- Automatic Engine Idle
- Automatic Engine Idle
- Automatic Engine Shutdown
- Automatic Engine Shutdown
- Automatic Two Speed Travel
- Automatic Two Speed Travel
- Fuel Water Separator
- Fuel Water Separator
- Power on Demand (not available in all regions)
- Power on Demand (not available in all regions)
- Variable Displacement Piston Pump
- Variable Displacement Piston Pump
- Load Sensing/Flow Sharing Hydraulics
- Load Sensing/Flow Sharing Hydraulics
Hydraulics
- Smart Tech Electronic Pump
- Accumulator
- Smart Tech Electronic Pump
- Automatic Swing Brake
- Accumulator
- Auxiliary Line Quick Disconnects
- Automatic Swing Brake
- One and Two Way Auxiliary Flow
- Auxiliary Hydraulic Lines
- Continuous Auxiliary Flow
- One and Two Way Auxiliary Flow
- Auxiliary Hydraulic Lines
- Continuous Auxiliary Flow
- Auxiliary Line Quick Disconnects
Guarding
- Top Guard ISO 10262:1998 Level I
- ROPS – ISO 12117-2:2008
- TOPS – ISO 12117:1997
- Top Guard ISO 10262:1998 (Level I)
Operator Environment
- Tilt-up Canopy or Tilt-Up Cab
- Stick Steer Mode
- Tilt-up Canopy or Tilt-Up Cab
- Travel Cruise Control
- Control Pattern Changer (optional in some regions)
- ROPS – ISO 12117-2:2008
- Adjustable Wrist Rests
- TOPS – ISO 12117:1997
- Washable Floor Mat
- Next Generation Advanced Monitor
  – Touch Screen
  – Site Reference System
  – High Definition Camera Capable (IP68 and IP69K)
  – Numeric Security Code
- Travel Pedals and Hand Levers
- Stick Steer Mode
- Machine Security
- Travel Cruise Control
- Machine Security – Standard Key with Pass Code
- Control Pattern Changer (optional in some regions)
- Fabric Suspension Seat (Cab only)
- Adjustable Wrist Rests
- Vinyl Suspension Seat (Canopy only)
- Washable Floor Mat
- Hydraulic Lockout – All Controls
- Travel Pedals and Hand Levers
- Retractable High Visibility Seat Belt (75 mm/3 in)
- Machine Security
- Coat Hook
- Machine Security – Standard Key with Pass Code
- Cup Holder
- Fabric Suspension Seat (Cab only)
- Storage Pocket
- Vinyl Suspension Seat (Canopy only)
- Skylight
- Hydraulic Lockout – All Controls
- Mounting Bosses for Front
- Retractable High Visibility Seat Belt (75 mm/3 in)
- Signaling/Warning Horn
- Coat Hook
- Interior Light (Cab only)
- Cup Holder
- Boom Light, Halogen (not available in all regions)
- Storage Pocket
- Utility Space for Mobile Phone
- Skylight
- Next Generation Color LCD Monitor (IP66)
  – Fuel Level and Coolant Temperature Gauges
  – Maintenance and Machine Monitoring
  – Performance and Machine Adjustments
  – Numeric Security Code
  – Multiple Languages
  – Hour Meter with Wake Up Switch
  – Jog Dial (cab only)
- Mounting Bosses for Front
- Signaling/Warning Horn
- Interior Light (Cab only)
- Boom Light, Halogen
- Utility Space for Mobile Phone
- Next Generation Color LCD Monitor (IP66)
  – Fuel Level and Coolant Temperature Gauges
  – Maintenance and Machine Monitoring
  – Performance and Machine Adjustments
  – Numeric Security Code
  – Multiple Languages
  – Hour Meter with Wake Up Switch
  – Jog Dial (cab only)
Undercarriage
- Rubber Belt (300 mm/11.8 in wide)
- Dozer Blade
- Dozer Blade Float
- Tie Downs on Track Frame
- Rubber Belt (300 mm/11.8 in wide)
- Dozer Blade
- Dozer Blade Float
- Tie Downs on Track Frame
Boom, Stick And Linkages
- One Piece Boom (2200 mm/86.6 in)
- Standard Stick (1260 mm/49.6 in)
- Front Shovel Capable
- Front Shovel Capable – Pin-On
- Thumb Ready (not available in all regions)
- Certified Lifting Eye (optional in some regions)
- One Piece Boom (2200 mm/86.6 in)
- Standard Stick (1260 mm/49.6 in)
- Front Shovel Capable – Hydraulic Coupler
- Front Shovel Capable – Pin-On
- Thumb Ready (not available in all regions)
- Certified Lifting Eye (optional in some regions)
Electrical
- 12 Volt Battery
- Software (machine and monitor)
- Maintenance Free Battery
- Lock Out/Tag Out Battery Disconnect
- Signaling/Warning Horn
- 12 Volt Power Socket
- 12 Volt Battery
- Software (machine and monitor)
- Maintenance Free Battery
- Signaling/Warning Horn
- 12 Volt Power Socket