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Truck/Loader Team Work cont'd Task #: 005 sheet 2 of 2 <br />Loading Tool Cycle Time • Number of loading tool passes required to fill truck : 4 <br />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 <br />Maneuver: NA Dump: 0.100 <br />Wheel and track loaders - unadjusted basic loader cycle time ( load, maneuver, and dumr 0.575 minutes <br />Cycle Time Factors Loading Condition Description Factor (min.) Source <br />Material : <br />Stockpile : Material 314" to 6" diameter <br />Conveyor or dozer piled 10 ft. high and up 0.000 <br />0.000 (Cat HB) <br />(Cat HB) <br />Truck ownershi C <br />p: ommon ownership of trucks and loaders 0.040 (Cat HB) <br />Operation : Constant operation 0.040 (Cat HI <br />Dump target : Nominal target 0.000 (Cat HB) <br /> rvat t;ycie time aajustment : -0.080 minutes <br /> Adjusted loader cycle time (total time per loader pass) : 0.495 minutes <br /> Net load time per truck * : 1,585 minutes <br />Truck Cycle Time : bulk of 1 st 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: 1.585 minutes........ Adjusted for site altitude : 1.723 minutes <br />Truck maneuver and dump time: 0.90 minutes........ Adjusted for site altitude : 0.900 minutes <br />set at 0 if exchange time < adj. loader cycle time (truck exchange completed during 1 st loader cycle) <br />Truck travel (haul & return) time: Road condition : Rutted dirt, little maintenance, no water, 2"tire pe netration <br />Haul route <br />Road <br />segment# <br />1 Haul distance <br />(feet) <br />4,500 Grade <br />res. (%) <br />3.00 Rolling <br />. res. (%) <br />5.00 Total <br />resistance (%) <br />8.00 Speed <br />(feet/minute) <br />1381 Travel time <br />(minutes) <br />3.301 <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />Haul times ** ? '7n4 <br />1 4,500 73.00 5.00 2.00 2905 1.584 <br />ninutes <br />-- -- .•• ?? _ _ o "uecei aeon aatustment Keturn time**: 1.584 minutes <br />total haul and return time shown includes altitude adjustment Total truck cycle time : 8.008 minutes <br />Loading tool unit production : 448.75 LCY/hour...... Adjusted forjob efficiency : <br />_ 372.47 LCY/hour <br />Truck unit production : 124.57 LCY/hour...... Adjusted forjob efficiency : 103.39 LCY/hour <br />Optimal no. trucks/loading tool : 4 trucks........... Selected no. trucks/loader : 4 trucks <br /> Adjusted hourly truck team production : 413.56 LCY/hr <br /> Adjusted hourly single truck/loader team production : 372.47 LCY/hr <br /> Adjusted hourly multiple truck/loader team production : 372.47 LCY/hr <br />JOB TIME AND COST <br />Fleet size : 1 Team(s) Total job time : 20.94 Hours <br />Unit cost : $1,11 E /LCY Total job cost : $8,702 <br />