M315C Wheel Excavator - Unimaq

HydraulicsFast cycle times, increased lift capacity and high bucket and stick forces combine to maximizeyour productivity in any job.Automatic Engine Control. AutomaticEngine Control (AEC) reduces engine rpmif no operation is performed, maximizingfuel efficiency and reducing sound levels.Dedicated Swing Pump. A separatededicated variable displacement pistonpump and fixed displacement piston motorpower the swing mechanism. This closedhydraulic circuit helps to provide maximumswing performance without reducing powerto the main hydraulic functions.Caterpillar’s XT-6 ES Hoses. To meet thecritical flexibility and strength demandsof wheel excavator applications, XT-6 EShoses are installed in the high pressurehydraulic system. XT-6 ES hoses are madeof four overlapping insulated wire spiralwraps bonded together for high abrasionresistance, excellent flexibility and easyinstallation. Hose routings are designed toprotect from damage in this way reducinghose failure downtime. O-ring face sealcouplings provide positive sealing forreliable and leak-free connections.Auxiliary Hydraulic Valves. The versatilityof the hydraulic system can be expandedwith multiple valve options.Multifunction Valve. The multifunction valveis the core of the innovative Tool Controlsystem. This valve can be electronicallyprogrammed for flow direction (one or twoways), pressure and flow rate. The valvealso features priority flow to maximizecontrol of the work tool. This on-boardelectro-hydraulic functionality eliminatesthe need for manual readjustments to theauxiliary hydraulics each time a differenttool is used.Hammer. The dedicated hammer valveis the best option for machines which willonly require a hammer tool and do notneed the flexibility provided by the multifunctionvalve.Hydraulic Cylinder Snubbers.The hydraulic cylinder snubbers atthe rod end of boom cylinders, both endsof stick cylinders and bucket cylinderrod end cushion shocks, reduce soundand increase cylinder life, keeping themachine working longer.Caterpillar ® Hydraulic Oil.Maximum protection against mechanicaland corrosive wear in all hydraulic systems.Its high zinc content reduces wear andextends pump life. Provided certainrequirements are met (e.g. S•O•S analysisevery 500 hours), the hydraulic oil changeinterval is extended from 2000 hours to4000 hours.Controllability. The hydraulic systemoffers precise control of the M315C,reducing operator fatigue and improvingeffectiveness.Stick Regeneration Circuit. Stick regenerationcircuits increase efficiency andhelp increase controllability for higherproductivity and lower operating costs.Adjustable Hydraulic Sensitivity.It allows the operator to adjustthe aggressiveness of the machineaccording to needs. For precisionwork, one of four different levels ofaggressiveness can be pre-selectedon the soft-switch panel. Increasedsensitivity can then be quicklyactivated and deactivated during thework cycle by using the joysticks.Proportional Medium Pressure.The unique Cat proportional slidingswitches provide modulation to themedium pressure circuit and bettercontrol for attachments and work tools.They are ideal for tilting buckets androtating tools. They enable the operatorto select exactly how much movementis required and subsequentlyvary this throughout the operation.5