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Truck/Loader Team Work cont'd Task #: 029 sheet 2 of 2 <br />Loading Tool Cycle Time : Number of loading tool passes required to fill truck : 4 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 : NA Maneuver : NA Dump : 0.100 <br />Wheel and track loaders - unadjusted basic loader cycle time ( load, maneuver, and duml 0.625 minutes <br />Cycle Time Factors Loading Condition Description Factor (min.) Source <br />Material : Mixed material 0.020 (Cat HB) <br />Stockpile : Conveyor or dozer piled 10 ft. high or less 0.010 (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 : -0.050 minutes <br /> Adjusted loader cycle time (total time per loader pass) : 0.575 minutes <br /> Net load time per truck * : 1.825 minutes <br />Truck Cycle Time : ' bulk of 1st loader cycle completed during truck exchange if adj. loader cycle time < exchange time <br />Truck exchange time **: 0.70 minutes........ Adjusted for site altitude : 0.700 minutes <br />Truck load time: 1.825 minutes........ Adjusted for site altitude : 1.825 minutes <br />Truck maneuver and dump time: 1.10 minutes........ Adjusted for site altitude : 1.100 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 Grade <br />res. (%) Rolling <br />res. (%) Total <br />resistance (%) Speed Travel time <br />(minutes) <br />1 1,200 8.00 5.00 13.00 678 1.798 <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />Return route : Haul time ** : 1.798 <br />1 1,200 -8.00 5.00 -3.00 3569 0.392 <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />' travel time shown for each segment includes acceleration/deceleration adjustment Return time**: 0.392 <br />" total haul and return time shown includes altitude adjustment Total truck cycle time: 5.815 <br />ninutes <br />minutes <br />minutes <br />Loading tool unit production : 935.64 LCY/hour...... Adjusted for job efficiency : 776.58 LCY/hour <br />Truck unit production : 406.31 LCY/hour...... Adjusted for job efficiency : 337.23 LCY/hour <br />Optimal no. trucks/loading tool : 2 trucks........... Selected no. trucks/loader : 2 trucks <br />Adjusted hourly truck team production : 674.47 LCY/hr <br />Adjusted hourly single truck/loader team production : 674.47 LCY/hr <br />Adjusted hourly multiple truck/loader team production : 674.47 LCY/hr <br />?. _?. ?.. , ....... ..- _ -- 'm _. ?. .........:_ _. . _.... 4 <br />JOB TIME AND COST <br />Fleet size : 1 Team(s) Total job time : 12.93 Hours <br />Unit cost : $1.603 /LCY Total job cost : $13,974