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C i <br /> HOURLY PRODUCTION: Sheet 2 of 3 <br /> ----------------- <br /> ----------------- <br /> Job Condition Corrections <br /> ------------------------- Truck/Load Team Support Equipment <br /> Truck Loader Load Area Dump Area <br /> Alt. = 12,300 ft. ------------------------------------------ <br /> Alt. adjustment ........... 0.920 0.860 0.980 0.760 <br /> Job efficiency ...(1sh/d) 0.830 0.830 0.830 0.830 <br /> -------- -------- -------- -------- <br /> Net Corrections 0.764 0.714 0.813 0.631 <br /> -------- -------- -------- -------- <br /> Load Equipment Capacity <br /> ----------------------- <br /> Rated capacity 4.500 LCY (nominal heaped) <br /> -------- Fill material description: <br /> Bucket fill factor 0.875 Loose material - 1" and over (85-90%) <br /> -------- ----------------------------------------- <br /> Adjusted capacity 3.938 LCY <br /> Truck Capacity <br /> -------------- <br /> Weight Basis: Volume Basis: <br /> Material weight = 2,900 lbs/LCY Struck capacity = 12.00 <br /> Mat. description -------- I Heaped capacity = 18.00 <br /> Decomposed rock- 50% Rock, 50% Earth ------- <br /> ------------------------------------ I Average = 15.00 LCY <br /> Rated payload = 43,000 lbs. ------- <br /> Payload volume = 14.83 LCY Max. Avg. Volume = 14.83 LCY <br /> Adj. truck volume based on discreet no. of loader passes 15.75 LCY <br /> Load Equipment Cycle Time <br /> ------------------------- <br /> Number of discreet Loader passes required to fill truck 4 <br /> Track loaders- ------- <br /> Load material description: N/A <br /> ------------------------------------------ <br /> Excavators/Shovels - cycle time vs. job condition rating: N/A <br /> - selected value within basic rating N/A <br /> ------------ <br /> Track loaders - basic cycle time elements: Load time = N/A min. <br /> Maneuver time = N/A <br /> Dump time = 0.09 <br /> Unadjusted Basic Cycle time = 0.500 min. <br /> Wheel/Track loaders- ------- <br /> Cycle Time Factors: Description Factor (min.) <br /> ---------------------------------------------------------------------- <br /> Material -Material 3/4" to 6" 0.000 <br /> Pile condition -Dumped by truck 0.020 <br /> Truck Ownership -Common ownership of trucks & loaders -0.040 <br /> Operation -Constant operation -0.040 <br /> Target -Nominal target 0.000 <br /> ---------------------------------------- ------- <br /> Net cycle time adj. _ -0.060 min. <br /> Adjusted Basic Cycle Time = 0.440 min. <br /> Total load time per truck incl. exchange time adj.* 1.410 min. <br /> *(bulk of 1st pass completed during truck exchange) ------- <br />