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Truck/Loader Team Work cont'd Task #: 302 <br />Loading Tool Cycle Time: Number of loading tool passes required to fill truck <br />Excavators and front shovels - machine cycle time vs. job condition rating : NA <br />- selected value within basic rating : NA <br />sheet 2 of 2 <br />passes <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 0.525 minutes <br />Cycle Time Factors Loading Condition Description Factor (min.) Source <br />Material :Material 118" to 3/4" diameter -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 />Road <br />segment# <br />Net cycle time adjustment: <br />-0.090 <br />minutes <br />Total <br />resistance ( %) <br />Adjusted loader cycle time (total time per loader pass) : <br />0.435 <br />minutes <br />1,120 <br />Net load time per truck * : <br />0.970 <br />minutes <br />Truck Cycle Time: <br />bulk of 1st loader cycle completed during truck exchange if adt loader cycle time <br />< exchange time <br />Adjusted hourly truck team production : <br />Truck exchange time * *: <br />0.50 minutes........ Adjusted for site altitude : <br />0.500 <br />minutes <br />Truck load time: <br />0.970 minutes........ Adjusted for site altitude : <br />0.970 <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 < adt loader cycle time (truck exchange completed during 1st loader cycle) <br />Truck travel (haul & return) time: <br />Road condition :Rutted dirt, little maintenance, no <br />water, 2" fire penetration <br />Haul route : <br />Road <br />segment# <br />Haul distance <br />Grade <br />res. ( %) <br />Rolling <br />res. ( %) <br />Total <br />resistance ( %) <br />Speed <br />Travel time <br />(minutes) <br />1 <br />1,120 <br />2.00 <br />500 <br />7.00 <br />1568 <br />0.747 <br />trucks <br />Adjusted hourly truck team production : <br />268.08 <br />LCY /hr <br />Adjusted hourly single truck/loader team production : <br />268.08 <br />LCY /hr <br />Adjusted hourly multiple truck /loader team production : <br />268.08 <br />LCY /hr <br />I <br />Return route <br />: <br />Haul time ** . <br />0.747 <br />1 <br />1,120 <br />-2.00 <br />5.00 <br />3.00 <br />2874 <br />0.415 <br />ninutes <br />' travel time shown for each segment includes acceleration /deceleration adjustment Return time * *: <br />0.415 <br />minutes <br />"total haul and return time shown includes altitude adjustment Total truck cycle time : <br />3.532 <br />minutes <br />Loading tool unit production : 388.01 LCY /hour...... Adjusted for job efficiency : <br />322.05 <br />LCY /hour <br />Truck unit production : 161.50 LCY /hour...... Adjusted for job efficiency : <br />134.04 <br />LCY /hour <br />Optimal no. trucks /loading tool : 2 trucks........... Selected no. trucks /loader : <br />2 <br />trucks <br />Adjusted hourly truck team production : <br />268.08 <br />LCY /hr <br />Adjusted hourly single truck/loader team production : <br />268.08 <br />LCY /hr <br />Adjusted hourly multiple truck /loader team production : <br />268.08 <br />LCY /hr <br />JOB TIME AND COST <br />Fleet size : 1 Team(s) Total job time: 18.20 Hours <br />Unit cost: $0.859 /LCY Total job cost: $4,193 <br />