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    310 Mini Hydraulic Excavator
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    M320 Wheeled Excavator
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    374 Hydraulic Excavator
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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 6.7 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 in 5.4 in
    Displacement 203 in³ 268.5 in³ 928 in³
    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 485 HP
    Engine Power - ISO 14396 (DIN) - 176 hp (metric) 492 hp (metric)
    Engine Model - C4.4 Cat C15
    Net Power - ISO 9249 - 171 HP 484 HP
    Net Power - ISO 9249 (DIN) - 174 hp (metric) 491 hp (metric)
    Biodiesel Capability - Up to B20¹ Up to B20¹
    Emissions - Meets U.S. EPA Tier 4 Final, EU Stage V, Japan 2014 emission standards. Meets U.S. EPA Tier 4 Final, EU Stage V, Korea Stage V, and 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 Net power advertised is the power available at the flywheel when the engine is equipped with fan, air intake system, exhaust system, and alternator with engine speed at 1,700 rpm. Advertised power is tested per the specified standard in effect at time of
    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 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 - 162900 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. - -
    Note - - Long Variable Gauge undercarriage, Reach boom, R4.67VB (15'4") stick, SD 3.3 m³ (4.32 yd³) bucket, 900 mm (35") HD double grouser shoes and removal type counterweight.

    Dimensions
    Dig Depth 205.2 in - -
    Boom - 5260 mm (17'3") Reach 7.8m (25'7")
    Bucket - 0.98 m³ GD (1.28 yd³) SD 3.3 m³ (4.32 yd³)
    Stick - 2.5 m (8' 2") R3.6m (11'10")
    Shipping Height - Top of Cab - 11 ft 11.8 ft
    Shipping Length - 29.3 ft 44.9 ft
    Counterweight Clearance - 4.3 ft 4.1 ft
    Ground Clearance - 1.4 ft 2.6 ft
    Support Point - 11.8 ft -
    Tail Swing Radius - 8.5 ft 13.8 ft
    Wheel Base - 8.9 ft -
    Handrail Height - - 13 ft
    Track Length - - 19.3 ft
    Track Length to Center of Rollers - - 15.5 ft
    Track Gauge - - 11.2 ft
    Transport Width - - 11.1 ft
    Note - - Track gauge undercarriage extended with 650 mm (26") shoes; transport width undercarriage retracted with 650 mm (26") shoes and no steps

    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 - 81 gal/min 237 gal/min
    Maximum Pressure - Equipment - 5366 psi 5366 psi
    Maximum Pressure - Swing - 5729 gal/min 5076 psi
    Maximum Pressure - Travel - 5076 gal/min 5076 psi
    Maximum Pressure - Equipment - Lift Mode - - 5511 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. - The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1.00 kg (2.2lb) of refrigerant, which has a CO2 equivalent of 1.430 metric tonnes (1.576 tons).
    Note - The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 0.85 kg of refrigerant which has a CO2 equivalent of 1.216 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) 40.9 gal (US) 86 gal (US)
    Cooling System 2.6 gal (US) 8.4 gal (US) 19 gal (US)
    Engine Oil 3 gal (US) - 16 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) 164 gal (US)
    Final Drive - 0.7 gal (US) -
    Fuel Tank Capacity - - 243 gal (US)
    Swing Drive - - 5 gal (US)
    Final Drive - Each - - 9 gal (US)
    DEF Tank - - 21 gal (US)

    Machine Weight
    Operating Weight Maximum - 46740 lb -
    Operating Weight Minimum - 41450 lb -

    Transmission
    Maximum Travel Speed - 21.7 mile/h -

    Working Ranges and Forces
    Boom Type - VA Boom -
    Bucket - 0.98 m³ GD (1.28 yd³) -
    Stick - 2.5 m (8' 2") -
    Reach at Ground Level - 30.5 ft -
    Vertical Wall Digging Depth - 13.9 ft -
    Cutting Height - 32.6 ft -
    Bucket Forces (ISO) - 30799 lbf -
    Stick Forces (ISO) - 20682 lbf -
    Note (1) - Range values are with dual pneumatic tires (10.00-20). Range values are calculated with a GD bucket (CW) and CW-30 quick coupler with a tip radius of 1535 mm (5'0"). -

    Swing Mechanism
    Swing Speed - 9.2 r/min 6.34 r/min
    Maximum Swing Torque - 37000 ft·lbf 220000 ft·lbf

    Working Ranges & Forces
    Maximum Digging Depth - - 28.1 ft
    Boom - - Reach 7.8m (25'7")
    Stick - - R3.6m (11'10")
    Bucket - - SD 3.3 m³ (4.32 yd³)
    Maximum Reach at Ground Level - - 43.2 ft
    Maximum Cutting Height - - 41.2 ft
    Maximum Loading Height - - 27.7 ft
    Minimum Loading Height - - 10.1 ft
    Maximum Depth Cut for 2440 mm (8 ft) Level Bottom - - 27.8 ft
    Maximum Vertical Wall Digging Depth - - 22.8 ft
    Bucket Digging Force - ISO - - 80550 ft·lbf
    Stick Digging Force - ISO - - 66390 ft·lbf
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