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    310 Mini Hydraulic Excavator
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    M322
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    Engine
    Net Power 69.5 HP - -
    Note 1 Advertised power is tested per the specified standard in effect at the time of manufacture. - -
    Stroke 4.7 in 5.3 in -
    Note Net power advertised is the power available at the flywheel when the engine is equipped with air cleaner, exhaust system and fan. - -
    Bore 3.7 in 4.1 in -
    Displacement 203 in³ 427.8 in² -
    Gross Power - SAE J1995:2014 74.3 HP - -
    Engine Model - U.S. EPA Tier 4 Final/EU Stage V Cat® C3.3B - -
    Net Power - 2,200 rpm - ISO 9249:2007, 80/1269/EEC 69.5 HP - -
    Engine Power - ISO 14396 - 174 HP -
    Engine Power - ISO 14396 (DIN) - 176 hp (metric) -
    Engine Model - C 7.1 -
    Net Power - ISO 9249 - 171 HP -
    Net Power - ISO 9249 (DIN) - 174 hp (metric) -
    Biodiesel Capability - Up to B20¹ -
    Emissions - Meets U.S. EPA Tier 4 Final, EU Stage V, Japan 2014 emission standards. -
    Note (1) - Net power advertised is the power available at the flywheel when the engine is equipped with fan, air cleaner, CEM exhaust gas aftertreatment, alternator, and cooling fan with engine speed at 2,200 rpm. Advertised power is tested per the specified standar -
    Note (2) - ¹Cat 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 -

    Weights
    Operating Weight 22451 lb - -
    Minimum Operating Weight with Cab* 21170 lb - -
    Maximum Operating Weight with Cab** 22451 lb - -
    Note (2) **Maximum Weight is based on steel tracks with rubber pads, counterweight, operator, full fuel tank, long stick, blade and no bucket. - -
    Note (1) *Minimum Weight is based on steel tracks, no counterweight, operator, full fuel tank, long stick, blade and no bucket. - -

    Dimensions
    Dig Depth 205.2 in - -
    Boom - VA 5.4m (17'10") -
    Stick - 2.9m (9'2") -
    Shipping Height with Falling Object Guard - 11 ft -
    Support Point - 11.3 ft -
    Shipping Length - 31.1 ft -
    Tail Swing Radius - 9.2 ft -
    Counterweight Clearance - 4.3 ft -
    Ground Clearance - 1.25 ft -
    Wheel Base - 9 ft -

    Blade
    Height 17 in - -
    Width - Standard 97.2 in - -
    Width - Wide 103.9 in - -

    Hydraulic System
    Maximum Auxiliary Circuit - Primary - Pressure at Pump 4134 psi - -
    Maximum Auxiliary Circuit - Secondary - Pressure at Pump 4134 psi - -
    Maximum Auxiliary Circuit - Primary - Flow at Pump 35 gal/min - -
    Operating Pressure - Swing 3336 psi - -
    Digging Force - Bucket 17459 lb - -
    Operating Pressure - Travel 4134 psi - -
    Operating Pressure - Equipment 4134 psi - -
    Note Flow and pressure are not combinable. Under load, as flow rises pressure goes down. - -
    Digging Force - Stick 11060 lb - -
    Type Load Sensing Hydraulics with Variable Displacement Piston Pump - -
    Pump Flow at 2,400 rpm 62 gal/min - -
    Maximum Auxiliary Circuit - Secondary - Flow at Pump 9 gal/min - -
    Main System - Maximum Flow - Implement - 95 gal/min -
    Maximum Pressure - Implement Circuit - Heavy Lift - 5366 psi -
    Maximum Pressure - Implement Circuit - Travel Circuit - 5076 psi -
    Maximum Pressure - Implement Circuit - Normal - 5076 psi -

    Swing System
    Machine Swing Speed 10.6 r/min - -

    Certification - Cab
    Top Guard ISO 10262:1998 (Level I) - -
    Roll Over Protective Structure (ROPS) ISO 12117-2:2008 - -
    Tip Over Protective Structure (TOPS) ISO 12117:1997 - -

    Sound
    Note European Union Directive "2000/14/EC" - -
    Average Exterior Sound Pressure (ISO 6395:2008) 99 dB(A) - -
    Operator Sound Pressure (ISO 6396:2008) 72 dB(A) - -

    Dimensions - Standard Stick
    Tail Swing without Counterweight 70.9 in - -
    Stick Length 98.4 in - -
    Boom In Reach 83.3 in - -
    Maximum Reach 303 in - -
    Dig Depth 205.2 in - -
    Ground Clearance - Frame 14 in - -
    O/A Track Width 97.2 in - -
    Cab Height 100 in - -
    Track Belt/Shoe Width 17.7 in - -
    Maximum Blade Depth 18.8 in - -
    Maximum Dump Clearance 229.5 in - -
    Maximum Dig Height 313.8 in - -
    Maximum Blade Height 16.6 in - -
    Tail Swing - Standard Counterweight 76.1 in - -
    O/A Undercarriage Length 126 in - -
    Vertical Wall 172.6 in - -
    Swing Bearing - Height 28.9 in - -
    Maximum Reach - Ground Level 298 in - -
    Overall Shipping Length - with Counterweight 274.9 in - -
    Note (2) **Boom Height when stick is pinned in working position with attachments. - -
    Note (1) *Boom Height when stick is pinned in transport position (if available) with no attachments. - -
    Overall Shipping Length - without Counterweight 269.7 in - -
    Height - Boom Transport - No Tools* 100.4 in - -
    Height - Boom Working - With Tools** 106.3 in - -

    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. - -
    Note - 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 1.43 metric tonnes. -

    Sustainability
    Recyclability 96% - -

    Weight Increase from Minimum Configuration
    Counterweight 552 lb - -
    Steel Tracks with Pads 728 lb - -

    Travel System
    Maximum Traction Force - Low Speed 19064 lb - -
    Maximum Traction Force - High Speed 6497 lb - -
    Travel Speed - High 3.1 mile/h - -
    Travel Speed - Low 1.6 mile/h - -
    Ground Pressure - Maximum Weight 6.4 psi - -
    Ground Pressure - Minimum Weight 6 psi - -
    Gradeability - Maximum 30 degrees - -

    Service Refill Capacities
    Hydraulic Tank 14 gal (US) - -
    Cooling System 2.6 gal (US) - -
    Engine Oil 3 gal (US) 3.4 gal (US) -
    Fuel Tank 38 gal (US) 124.2 gal (US) -
    Hydraulic System 37 gal (US) - -
    Diesel Exhaust Fluid (DEF) - 7.9 gal (US) -
    Hydraulic System - Including Tank - 71.3 gal (US) -

    Machine Weight
    Operating Weight Maximum - 52911 lb -
    Operating Weight Minimum - 44750 lb -

    Transmission
    Forward/Reverse - 2nd Gear - 18.6 mile/h -
    Forward/Reverse - 1st Gear - 5.6 mile/h -
    Creeper Speed - 1st Gear - 3.4 mile/h -
    Creeper Speed - 2nd Gear - 9.3 mile/h -
    Drawbar Pull - 28551 lbf -
    Maximum Gradeability - 70% -

    Swing Mechanism
    Swing Torque - 44250 lb/ft -

    Working Ranges and Forces
    Boom Type - VA 5.4m (17'10") -
    Stick - 2.9m (9'2") -
    Bucket - GD 1.2 m³ (1.7 yd³) -
    Maximum Loading Height - 24.7 ft -
    Maximum Digging Depth - 21.8 ft -
    Reach at Ground Level - 33.4 ft -
    Vertical Wall Digging Depth - 17.3 ft -
    Bucket Forces (ISO) - 33946 lbf -
    Stick Forces (ISO) - 23605 lbf -
    Maximum Depth Cut for 2440 mm (8 ft) Level Bottom - 21.6 ft -

    working Ranges and Forces
    Cutting Height - 35.8 ft -
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