Cat M312

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EngineCaterpillar four-stroke-cycle, four cylinder 3054 DITA direct injection turbochargeddiesel engine (M312 and M315). Caterpillar four-stroke-cycle, six cylinder 3116 DITdirect injection turbocharged diesel engine (M318).M312 M315 M318Ratings at 2000 rpm kW/hp kW/hp kW/hpGross power 85.1/114 92.4/124 103.5/139The following ratings apply at 2000 rpmwhen tested under the conditions for the specified standard:Net power kW/hp kW/hp kW/hpISO 9249 81.1/108.7 83.8/112 98/131EEC 80/1269 81.1/108.7 83.8/112 98/131DimensionsBore 100 mm 100 mm 102 mmStroke 127 mm 127 mm 130 mmDisplacement 3.99 liters 3.99 liters 6.6 litersMaximum torque 450 Nm 450 Nm 608 NmTorque rise 8% at 1400 rpm 16% at 1500 rpm 21% at 1500 rpmNoise levels *L PA = 72 dB(A) *L PA = 75 dB(A) *L PA = 78 dB(A)*L WA = 99 dB(A) *L WA = 99 dB(A) *L WA = 100 dB(A)Measured Emission Values** g/hph g/hph g/hphHydrocarbons (HC) 0.212 0.212 0.38Carbon Monoxide (CO) 0.511 0.511 1.32Nitrous Oxide (NO X ) 8.113 8.113 6.20* Dynamically measured according to ISO6396 or 95/27/EC.** ISO 8178Axles/BrakesPlanetary axles with planetary gearreduction final drives located in the axlehubs. Fully hydraulic brake system withseparate gear pump.Axle static load capacityM312M315/M31826 000 kg30 000 kgSteering/TiresFully hydraulic, powered by a separategear pump mounted on the engine.Steering angle 35°Standard tires 10.00-20Optional solid tires 10.00-20Maestro MobileElectronic Control SystemThe microcontroller monitors andcontrols a whole set of engine andhydraulic parameters.Hydraulic SystemClosed center, variable flow, load-sensing hydraulic system.Load-sensing axial-piston pump powers boom, stick, bucket,outriggers/dozer and travel circuit.Main Hydraulic System M312 M315 M318Maximum flow 190 l/min 220 l/min 260 l/minMaximum pressureImplements 330 bar 330 bar 330 barTravel 330 bar 330 bar 330 barPilot SystemMaximum flow 15 l/min 15 l/min 15 l/minMaximum pressure 25 bar 30 bar 25 barSwing MechanismDedicated variable displacement axial-piston pumpand fixed-displacement axial-piston motor powersthe swing mechanism.Swing system M312 M315 M318Maximum flow 80 l/min 80 l/min 112 l/minMaximum pressure 350 bar 370 bar 315 barSwing torque 31 kNm 36.5 kNm 46.4 kNmMaximum swing speed 11 rpm 10.1 rpm 9.4 rpm12 M312, M315 and M318 Industrial Arrangement specifications
Transmission2-gear power-shift transmission. Permanent all wheel drive.Speeds M312 M315 M3181st gear forward/reverse(work) 9 km/h 9 km/h 9 km/h2nd gear forward(travel) 34 km/h 34 km/h 34 km/h2nd gear reverse 20 km/h 20 km/h 20 km/hCreeper speed 3.8 km/h 3.8 km/h 3.8 km/hDrawbar pull 70 kN 91 kN 91 kNGradeability 57% 67% 61%Service Refill CapacitiesM312 M315 M318Liters Liters LitersFuel Tank 230 240 320Cooling 35 30 35Lubrication (engine) 9 9 21Rear axle housing, differential 11 11 11Front steering axle, differential 7 8.5 8.5Final drives, front (each) 2 2 2Final drives, rear (each) 2 2 2Powershift transmission 3 3 3Hydraulic system (including tank) 180 210 220Hydraulic tank 95 115 135Shipping DimensionsIncluding hoses and tubes.BACDEOne-piece boomVA boomM312 M315 M318 M312 M315 M318A Shipping height 3070 mm 3080 mm 3160 mm 3070 mm 3130 mm 3220 mmB Shipping length 7870 mm 8260 mm 9010 mm 8120 mm 8470 mm 8920 mmC Cab height 3070 mm 3080 mm 3100 mm 3070 mm 3080 mm 3100 mmD Counterweight clearance 1262 mm 1262 mm 1280 mm 1262 mm 1262 mm 1280 mmE Support point distance 3220 mm 3290 mm 3440 mm 3550 mm 3720 mm 3535 mmM312, M315 and M318 Industrial Arrangement specifications13
Page 1 and 2: M312/M315M318/M320Material Handler
Page 3 and 4: StructuresFor maximum strength and
Page 5 and 6: M318 MH and M320 MH Hydraulic Cab R
Page 7 and 8: Shipping dimensionsM320 MH and M318
Page 9 and 10: Lift Capacities M318 MHWith Straigh
Page 11: M312, M315 and M318 Industrial Arra
Page 15 and 16: Working Ranges M312 One-piece-boomW

Cat M312

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