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Truck/Loader Team Work cont'd Task #: 04a 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 dumr 0.575 minutes <br />Cycle Time Factors Loading Condition Description Factor (min.) Source <br />Material : Material 1/8" to 3/4" diameter -0.020 (Cat HB) <br />Stockpile : No adjustment - factor not applicable 0.000 (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 : -0.100 minutes <br /> Adjusted loader cycle time (total time per loader pass) : 0.475 minutes <br /> Net load time per truck * : 1.525 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 **: 0.50 minutes........ Adjusted for site altitude : 0.500 minutes <br />Truck load time: 1.525 minutes........ Adjusted for site altitude : 1.658 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 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 1,200 -1.60 5.00 3.40 2800 0.619 <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />Return route : <br />*• total haul and return time shown includes altitude adjustment <br />Haul time ** : 0.619 minutes <br />Total truck cycle time <br />4.233 <br />minutes <br />minutes <br />Loading tool unit production : 488.74 LCY/hour...... Adjusted for job efficiency : 405.65 LCY/hour <br />Truck unit production : 249.11 LCY/hour...... Adjusted for job efficiency : 206.76 LCY/hour <br />Optimal no. trucks/loading tool : 2 trucks........... Selected no. trucks/loader : 2 trucks <br /> Adjusted hourly truck team production : 413.52 LCY/hr <br /> Adjusted hourly single truck/loader team production : 405.65 LCY/hr <br /> Adjusted hourly multiple truck/loader team production : 405.65 LCY/hr <br />JOB TIME AND COST <br />Fleet size : 1 Team(s) Total job time : 67.79 Hours <br />Unit cost : $0.992 /LCY Total job cost : $27,279 <br />• travel time shown for each segment includes acceleration/deceleration adjustment Return time**: 0.557