308 CR Mini Hydraulic Excavator

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Description

Technical Specifications

Benefits and Features

Equipment

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The Cat^® 308 CR Mini Excavator delivers maximum power and performance in a mini size to help you work in a wide range of applications.

Engine
Net Power	69.5 hp
Engine Model	Cat C3.3B
Stroke	4.7 in
Bore	3.7 in
Gross Power - SAE J1995	74.3 hp
Rated Net Power - 2,200 rpm - U.S. EPA Tier 4 Final/EU Stage V - ISO 9249/EEC 80/1269	69.5 hp
Displacement	203 in³
Weights
Operating Weight	18493 lb
Note (1)	*Minimum Weight is based on rubber tracks, no counterweight, operator, full fuel tank, standard stick, blade and no bucket.
Note (2)	**Maximum Weight is based on steel tracks with rubber pads, counterweight, operator, full fuel tank, long stick, blade and no bucket.
Maximum Operating Weight with Cab**	18493 lb
Minimum Operating Weight with Cab*	16542 lb
Dimensions - Long Stick
Dig Depth	182.8 in
Boom Swing - Left	23.8 in
Maximum Dig Height	277.1 in
Maximum Blade Height	14.6 in
Track Belt/Shoe Width	17.7 in
Cab Height	100 in
Tail Swing with Counterweight	62.4 in
O/A Undercarriage Length	113.4 in
Maximum Dump Clearance	199.7 in
Boom Swing - Right	36.8 in
Maximum Blade Depth	16 in
Ground Clearance	13.8 in
Stick Length	92.8 in
Note	*Boom Height when stick is pinned in transport position with no attachments.
Maximum Reach	300.7 in
Note (2)	***With blade positioned at the rear of the machine.
Maximum Reach - Ground Level	293.7 in
Note (1)	**Boom Height when stick is pinned in working position with attachments. Standard Stick offers only one pin position.
Height - Boom Transport - No Tools*	89 in
Height - Boom Working - With Tools**	120.1 in
Overall Shipping Length - without Counterweight	6872 mm (270.6 in)***
Overall Shipping Length - with Counterweight	6872 mm (270.6 in)***
Boom In Reach	126.6 in
Swing Bearing - Height	29.7 in
O/A Track Width	90.6 in
Tail Swing without Counterweight	57.1 in
Vertical Wall	134 in
Blade
Height	17 in
Width - Standard	90.6 in
Width - Wide	96.5 in
Swing System
Machine Swing Speed	10.6 r/min
Boom Swing - Right	50 degrees
Boom Swing - Left	60 degrees
Hydraulic System
Digging Force - Bucket	13946 lb
Operating Pressure - Travel	4134 psi
Operating Pressure - Swing	3626 psi
Operating Pressure - Equipment	4134 psi
Digging Force - Stick - Long	8032 lb
Type	Load Sensing Hydraulics with Variable Displacement Piston Pump
Note	Flow and pressure are not combinable. Under load, as flow rises pressure goes down.
Maximum Auxiliary Circuit - Primary - Pressure at Pump	4134 psi
Maximum Auxiliary Circuit - Secondary - Pressure at Pump	4134 psi
Pump Flow at 2,400 rpm	44 gal/min
Maximum Auxiliary Circuit - Primary - Flow at Pump	35 gal/min
Maximum Auxiliary Circuit - Secondary - Flow at Pump	9 gal/min
Digging Force - Stick - Standard	9509 lb
Dimensions - Standard Stick
Cab Height	100 in
Vertical Wall	117.8 in
Boom In Reach	120.4 in
Tail Swing with Counterweight	62.4 in
Boom Swing - Right	36.8 in
Track Belt/Shoe Width	17.7 in
Maximum Reach	281.1 in
Stick Length	71.7 in
Maximum Blade Height	14.6 in
Boom Swing - Left	23.8 in
Maximum Blade Depth	16 in
Note	*Boom Height when stick is pinned in transport position with no attachments.
Overall Shipping Length - with Counterweight	264 in
Note (1)	**Boom Height when stick is pinned in working position with attachments. Standard Stick offers only one pin position.
O/A Track Width	90.6 in
Overall Shipping Length - without Counterweight	258.8 in
Note (2)	***With blade positioned at the rear of the machine.
Height - Boom Working - With Tools**	104.7 in
Height - Boom Transport - No Tools*	95.7 in
Maximum Dig Height	265.2 in
Maximum Dump Clearance	187.4 in
Maximum Reach - Ground Level	273.6 in
Tail Swing without Counterweight	57.1 in
O/A Undercarriage Length	113.4 in
Swing Bearing - Height	29.7 in
Ground Clearance	13.8 in
Dig Depth	161.7 in
Service Refill Capacities
Fuel Tank	39 gal (US)
Hydraulic System	29 gal (US)
Hydraulic Tank	14 gal (US)
Cooling System	2.6 gal (US)
Engine Oil	3 gal (US)
Travel System
Maximum Traction Force - High Speed	6250 lb
Ground Pressure - Maximum Weight	5.5 psi
Ground Pressure - Minimum Weight	4.9 psi
Travel Speed - High	3.2 mile/h
Travel Speed - Low	1.9 mile/h
Maximum Traction Force - Low Speed	15175 lb
Gradeability - Maximum	30 degrees
Weight Increase from Minimum Configuration
Steel Tracks with Pads	752 lb
Counterweight	552 lb
Long Stick	146 lb
Sustainability
Recyclability	96%
Certification - Cab
Top Guard	ISO 10262:1998 (Level I)
Roll Over Protective Structure (ROPS)	ISO 12117-2:2008
Air Conditioning System
Air Conditioning	The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1.0 kg of refrigerant which has a CO2 equivalent of 1.430 metric tonnes.
Sound
Operator Sound Pressure (ISO 6396:2008)	72 dB(A)
Note	European Union Directive "2000/14/EC"
Average Exterior Sound Pressure (ISO 6395:2008)	99 dB(A)

ALL DAY COMFORT

A sealed and pressurized cab is equipped with an improved air conditioning system, adjustable wrist rests and a suspension seat to help keep you working comfortably all day long.

EASY TO OPERATE

Controls are easy to use and the intuitive Next Generation Monitor provides customizable machine operator preferences and easy to read machine information.

STICK STEER TRAVEL MODE

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

BIG PERFORMANCE IN A MINI DESIGN

Increased lifting, swinging, travel and multi-functioning performance help you get the job done more efficiently, and blade 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. A back-up camera, courtesy work lights and a fluorescent retractable seat belt are just a few of the safety features we‚Äôve 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 with grouped service points and robust service panels.

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® C3.3B 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)
Cat Grade with advanced 2D and 3D technologies combine advanced guidance with optional automated machine control helping you reach grading targets while reducing fuel burn and greenhouse gas emissions by improving efficiency, job site productivity, and accuracy. (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 C3.3B Diesel Engine (U.S. EPA Tier 4 Final/EU Stage V) – Electronic Engine, Turbo, Diesel Particulate Filter (DPF)
- Automatic Engine Idle
- Automatic Engine Shutdown
- Automatic Swing Brake
- Automatic Two Speed Travel
- Fuel Water Separator with Indicator
- Radial Seal – Double Element Air Filter
- Extended Life Coolant, –37° C (–35° F)
Hydraulics
- Electronic Variable Displacement Piston Pump
- Load Sensing/Flow Sharing Hydraulics
- Power On Demand
- Hydraulic Temperature Monitoring
- Certified Accumulator
- HYDO Advanced Hydraulic Oil
Operator Environment
- Top Guard ISO 10262 1998 Level I
- ROPS ISO 12117-2:2008
- Stick Steer Mode
- Travel Cruise Control
- Control Pattern Changer
- Adjustable Wrist Rests
- Molded Footrests
- Removable, Washable Floor Mat
- Travel Pedals and Hand Levers
- Cat Key with Passcode Option
- HVAC with Automatic Temperature Control
- Hydraulic Lockout Controls
- Integrated Lower Front Window
- Assisted Front Window Overhead Storage
- Rear Window Emergency Exit
- Fabric, High Back, Suspension Seat
- Retractable Seat Belt (75 mm/3 in)
- Coat Hook
- Cup Holder
- LED Interior Light
- Literature Holder
- Mounting Bosses for Top and Front Guards
- 12V Power Socket
- Radio – Bluetooth, Auxiliary, Microphone, USB (charging only)
- Skylight
- Signaling/Warning Horn
- Cab and (left side) Boom Work Lights
- Utility Space for Mobile Phone
- Next Generation Color LCD Monitor (IP66)
  – Jog Dial Interface
  – Fuel Level and Coolant Temperature Gauges
  – Maintenance and Machine Monitoring
  – Performance and Machine Adjustments
  – Numeric Security Code
  – Multiple Languages
  – Camera Ready (IP68 & IP69K)
  – Hour Meter with Wake Up Switch
Undercarriage
- Greased and Lubricated Track
- Tie Down Eyes on Track Frame
- Dozer Blade
- Dozer Float
- Bolt-on, Reversible Wear Edge
Boom, Stick And Linkages
- One Piece Boom (3400 mm/133.9 in)
- Standard Stick (1820 mm/71.7 in)
- Front Shovel Capable – Pin-on/Manual Coupler/Hydraulic Coupler (not available in all regions)
- Thumb Ready (not available in all regions)
Electrical
- 12 Volt Electrical System
- 60 Ampere Alternator
- Circuit Breaker
- 900 CCA Maintenance Free Battery
- Battery Disconnect
- Ignition Key Stop Switch
Other
- Locks on External Enclosure Doors
- Lockable Fuel Cap
- Beacon Socket
- Rear Reflectors
Technology
- Product Link Basic