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Truck/Loader Team Work cont'd Task # : o4a sheet 2 of 2 <br />Loadins~ Tool Cycle Time : Number of loading tool passes required to fill truck : 2 passes <br />Excavators and front shovels -machine cycle time vs. job condition rating : NA <br />-selected value within basic rating : NA <br />Track loaders -material descr.: NA <br />-cycle time elements (min.) : Load <br />NA Maneuver : NA Dump : 0.100 <br />Wheel and track loaders -unadjusted basic loader cycle time (load, maneuver, and dump) : 0.525 minutes <br />Cycle Time Factors Loading Condition Description Factor (min.) Source <br />Material : Mixed material 0.020 (Cat H!3) <br />Stockpile : Dumped by truck 0.020 (Cat HB) <br />Truck ownership : Common ownership of trucks and loaders -0.040 (Cat HB) <br />Operation : Constant operation -0.040 (Cat HB) <br />Dump target : Nominal target 0.000 (Cat HB) <br /> Net cycle time adjustment : -0.040 minutes <br /> Adjusted loader cycle time (total time per loader pass) : 0.485 minutes <br /> Net load time per truck' : 0.585 minutes <br />Truck Cvcle Time : • bulk of 1st loader cycle completed during truck exchange if adj. loader cycle time < exchange time <br />Truck exchange time **: 0.50 minutes........ Adjusted for site altitude : 0.500 minutes <br />Truck load time: 0.585 minutes........ Adjusted for site altitude : 0.585 minutes <br />Truck maneuver and dump time: 0.80 minutes........ Adjusted for site altitude : 0.800 minutes <br />"set at 0 if exchange time < adj. loader cycle time (truck exchange completed during 1st loader cycle) <br />Truck travel (haul & return) time: Road condition :Rutted dirt, little maintenance, no water, 2"tire penetration <br />Haul route <br />Road <br />segment # Haul distance <br />(feet) Grade <br />res. (%) Rolling <br />res. (%) Total <br />resistance (%) Speed <br />(feet/minute) Travel time * <br />(minutes) <br />1 500 0.00 5.00 5.00 2218 0.295 <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />Return route <br />Haul time ** : 0.295 minutes <br />travel time shown for each segment includes acceleration/deceleration adjustment Return time**: 0.206 minutes <br />"total haul and return time shown includes altitude adjustment Total truck cycle time : 2.386 minutes <br />Loading tool unit production : 395.39 LCY/hour...... Adjusted for job efficiency : 328.18 LCY/hour <br />Truck unit production : 179.80 LCY/hour...... Adjusted for job efficiency : 149.23 LCY/hour <br />Optimal no. trucks/loading tool : 2 trucks........... Selected no. trucks/loader : 2 trucks <br /> Adjusted hourly truck team production : 298.46 LCY/hr <br /> Adjusted hourly single truck/loader team production : 298.46 LCY/hr <br /> Adjusted hourly multiple truck/loader team production : 298.46 LCY/hr <br />JOB TIME AND COST <br />Fleet size : 1 Team(s) Total job time : 10.47 Hours <br />Unit cost : $0.703 /LCY Total job cost : $2,197 <br /> <br />