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Truck/Loader Team Work cont'd Task #: 081 <br />r m <br />Loadina Tool Cycle Time: Number of loading tool passes require( <br />Excavators and front shovels - machine cycle time vs. job condition rating <br />- selected value within basic rating <br />Track loaders - material descr. : Moist mixed aggregates ( 0.04 - 0.06 min. ) <br />- cycle time elements (min.) : Load : 0.050 Maneuver: <br />sheet 2 of 2 <br />t ;. <br />i to fill truck : 2 passes <br />NA <br />NA <br />0.200 Dump: 0.055 <br />Wheel and track loaders - unadjusted basic loader cycle time ( load, maneuver, and dumr 0.305 minutes <br />Cycle Time Factors <br />Loading Condition Description <br />Factor (min.) <br />Source <br />Material :Mixed <br />material <br />0.020 <br />(Cat HB) <br />Stockpile : <br />No adjustment - factor not applicable <br />0.000 <br />(Cat HB) <br />Truck ownership : <br />Common ownership of trucks and loaders <br />-0.040 <br />(Cat HB) <br />Operation : <br />Constant operation <br />-0.040 <br />(Cat HB) <br />Dump target : <br />Nominal target <br />0.000 <br />(Cat HB) <br />Road <br />segment # <br />Net cycle time adjustment: <br />-0.060 <br />minutes <br />Total <br />resistance ( %) <br />Adjusted loader cycle time (total time per loader pass) : <br />0.245 <br />minutes <br />7 <br />Net load time per truck * : <br />0.300 <br />minutes <br />Truck Cycle Time : <br />• bulk of 1st loader cycle completed during truck exchange if adj. loader cycle time < exchange time <br />trucks <br />Truck exchange time * *: <br />0.50 minutes........ Adjusted for site altitude : <br />0.500 <br />minutes <br />Truck load time: <br />0.300 minutes........ Adjusted for site altitude : <br />0.300 <br />minutes <br />Truck maneuver and dump time: <br />0.90 minutes........ Adjusted for site altitude : <br />0.900 <br />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: <br />Road condition NA-user <br />Haul route : <br />- - . ° �__ .,_. <br />..... _ <br />Road <br />segment # <br />Haul distance <br />(miles) <br />Grade <br />res. ( %) <br />Rolling <br />res. ( %) <br />Total <br />resistance ( %) <br />Speed <br />(miles/hour) <br />Travel time <br />(minutes) <br />1 <br />7 <br />NA -user <br />NA -user <br />NA -user <br />35 <br />12.000 <br />trucks <br />Adjusted hourly truck team production : <br />95.92 <br />LCY /hr <br />Adjusted hourly single truck/loader team production : <br />95.92 <br />LCY /hr <br />Adjusted hourly multiple truck/loader team production : <br />95.92 <br />LCY /hr <br />JOB TIME AND COST <br />- - . ° �__ .,_. <br />..... _ <br />Fleet size : <br />1 <br />Team(s) Total job time : <br />62.33 <br />Hours <br />Unit cost: <br />$5.745 <br />/LCY Total job cost : <br />$34,350 <br />Return route : Haul time ** : 12.000 minutes <br />minutes <br />minutes <br />Loading tool unit production : <br />618.75 <br />LCY /hour...... Adjusted for job efficiency : <br />513.56 <br />LCY /hour <br />Truck unit production : <br />19.26 <br />LCY /hour...... Adjusted for job efficiency : <br />15.99 <br />LCY /hour <br />Optimal no. trucks /loading tool : <br />32 <br />trucks........... Selected no. trucks /loader : <br />6 <br />trucks <br />Adjusted hourly truck team production : <br />95.92 <br />LCY /hr <br />Adjusted hourly single truck/loader team production : <br />95.92 <br />LCY /hr <br />Adjusted hourly multiple truck/loader team production : <br />95.92 <br />LCY /hr <br />JOB TIME AND COST <br />- - . ° �__ .,_. <br />..... _ <br />Fleet size : <br />1 <br />Team(s) Total job time : <br />62.33 <br />Hours <br />Unit cost: <br />$5.745 <br />/LCY Total job cost : <br />$34,350 <br />travel time shown for each segment includes acceleration /deceleration adjustment Return time * *: 12.000 <br />total haul and return time shown includes altitude adjustment Total truck cycle time : 25.700 <br />