1. A contractor is using a CAT 930K loader to remove a rock-dirt mixture from a demolition site.

• The loader is equipped with a pin-on bucket that has a rated heaped capacity of 2.7 cubic yards.
• The soil being used for the backfill is a rock-dirt mixture weighting 2,900 pounds per loose cubic yard. Consider the average fill factor for the material.
• Assume that load time is 18 seconds and total maneuver time is 12 seconds.
• Other times can be obtained from tables provided.
• The average travel distance for the loader is 150 meters one way on level ground.

1. Perform a tipping load test (50% of full turn static tipping load for wheel loaders). Assume rigid tire.

b. What is the estimated production of the loader in tons per hour, if the contractor plans an operational efficiency of 45 minutes per hour?

924K Standard and High Lift Pin On/Hook On 105 kW 141 hp 109 kW 146 hp C6.6 ACERT 930K Standard and High Lift Pin On/Hook On 115 kW 154 hp 119 kW 160 hp C6.6 ACERT 1800 1800 MODEL Flywheel Power: Net Maximum Engine Model Rated Engine RPM Bore Stroke No. Cylinders Displacement Speeds Forward: 1st 105 mm BUCKET FILL FACTORS 4.00" 4.00" 105 mm 127 mm 127 mm 5.00" 5.00" 6 6.6 L 402 in 6.6 L 402 in km/h mph km/h mph 7.0 7.0 The following indicates the approximate amounts of material as a percent of rated bucket capacity which will actually be delivered per bucket per cycle. This is known as "Bucket Fill Factor." Loose Material Fill factor Mixed moist aggregates 95-100% Uniform aggregates up to 3 mm (1/8 in)..95-100 3 mm (1/8 in) to 9 mm (3/8 in) 12 mm (1/2 in) to 20 mm (3/4 in) ........ 85-90 24 mm (1.0 in) and over 85-90 2nd 13.0 8.0 13.0 8.0 3rd 27.0 17.0 27.0 17.0 90-95 4th 40.0 25.0 40.0 25.0 Speeds Reverse: km/h mph km/h mph 1st 7.0 7.0 2nd 13.0 8.0 13.0 8.0 3rd 27.0 17.0 27.0 17.0 80-95% 75-90 40.0 25.0 40.0 25.0 60-75 Blasted Rock Well blasted. Average Poor. Other Rock dirt mixtures Moist loam Soil, boulders, roots Cemented materials Seconds Seconds 5.5 5.1 100-120% 100-110 80-100 85-95 1.5 1.5 2.6 2.7 9.6 9.3 4th Hydraulic Cycle Time, Rated Load in Bucket Raise Dump Lower (Empty, Float Down) Total Tread Width Width Over Tires Ground Clearance Fuel Tank Capacity Hydraulic Tank Capacity Hydraulic System Capacity (includes tank) 1.93 m 1.93 m 249 m 82" 2.49 m 8'2" 400 mm 400 mm 195 L 195 L 90 L 51.5 U.S.gal 23.8 U.S.gal 51.5 U.S.gal 23.8 U.S.gal 90L 160 L 42.3 U.S.gal 160 L 423 U.S.gal 930K TRAVEL TIME - LOADED 930K TRAVEL TIME - EMPTY 275 TIME MIN) PERCENT GRADE TIME (MINE PERCENT GRADE 120 DISTANCE ONE WAY DISTANCE ONE WAY Performance Data 930K (LRC) Standard Lift Pin On Bucket Bucket Type General Purpose Pin On Rated bucket capacity 2.1 2.3 2.5 2.7 3.0 3.3 Struck capacity m yd m yd 19 2.1 2.3 2.5 2.7 Bucket width mm 2550 8'4" ft/in kg/m Ib/yd 1821 2550 8'4" 2018 3461 2855 94 1033 Nominal material density 100 percent fill factor Dump clearance at full lift and 45 discharge Reach at full lift and 45 discharge 3.0 2550 8'4" 1649 2754 2761 9'0" 3077 mm 2807 9'2" ft/in mm ft/in 1070 1109 3'4" 36" 37" mm 1560 1573 1587 ft/in 5'1" 5'1" 5'2" mm 2350 2413 2475 8'1" ft/in 7'8" 7'11" Reach at 45 discharge and 2130 mm (70") clearance Reach with lift arms horizontal and bucket level Digging depth Overall length Overall height with 100 100 100 mm in 3.9 3.9 3.9 mm ft/in 7551 249" mm 7488 24'6" 5122 16'9" 5933 5180 7613 24'11" 5239 17'2" 5970 bucket at full raise ft/in 16'11" mm 5951 19'5" 19'6" Loader clearance radius with bucket in carry position Tipping load straight (ISO 14397-1). Tipping load - straight (Rigid Tire)** 9908 9798 21,843 10 321 21,601 10 206 ft/in kg Ib kg lb kg lb kg Ib kg Ib kg Ib Tipping load - full turn (ISO 14397-1)" 22,753 8477 18.688 19'7" 9661 21,299 10 064 22,187 8246 18,179 8772 19,339 22,501 8375 18.463 8909 19,641 Tipping load - full turn (Rigid Tire)** 9018 19,881 Breakout force 12 891 12 158 11 488 28,419 13 135 26,803 13 198 29.096 25,326 13 297 Operating weight 28.956 29,314 924K Standard and High Lift Pin On/Hook On 105 kW 141 hp 109 kW 146 hp C6.6 ACERT 930K Standard and High Lift Pin On/Hook On 115 kW 154 hp 119 kW 160 hp C6.6 ACERT 1800 1800 MODEL Flywheel Power: Net Maximum Engine Model Rated Engine RPM Bore Stroke No. Cylinders Displacement Speeds Forward: 1st 105 mm BUCKET FILL FACTORS 4.00" 4.00" 105 mm 127 mm 127 mm 5.00" 5.00" 6 6.6 L 402 in 6.6 L 402 in km/h mph km/h mph 7.0 7.0 The following indicates the approximate amounts of material as a percent of rated bucket capacity which will actually be delivered per bucket per cycle. This is known as "Bucket Fill Factor." Loose Material Fill factor Mixed moist aggregates 95-100% Uniform aggregates up to 3 mm (1/8 in)..95-100 3 mm (1/8 in) to 9 mm (3/8 in) 12 mm (1/2 in) to 20 mm (3/4 in) ........ 85-90 24 mm (1.0 in) and over 85-90 2nd 13.0 8.0 13.0 8.0 3rd 27.0 17.0 27.0 17.0 90-95 4th 40.0 25.0 40.0 25.0 Speeds Reverse: km/h mph km/h mph 1st 7.0 7.0 2nd 13.0 8.0 13.0 8.0 3rd 27.0 17.0 27.0 17.0 80-95% 75-90 40.0 25.0 40.0 25.0 60-75 Blasted Rock Well blasted. Average Poor. Other Rock dirt mixtures Moist loam Soil, boulders, roots Cemented materials Seconds Seconds 5.5 5.1 100-120% 100-110 80-100 85-95 1.5 1.5 2.6 2.7 9.6 9.3 4th Hydraulic Cycle Time, Rated Load in Bucket Raise Dump Lower (Empty, Float Down) Total Tread Width Width Over Tires Ground Clearance Fuel Tank Capacity Hydraulic Tank Capacity Hydraulic System Capacity (includes tank) 1.93 m 1.93 m 249 m 82" 2.49 m 8'2" 400 mm 400 mm 195 L 195 L 90 L 51.5 U.S.gal 23.8 U.S.gal 51.5 U.S.gal 23.8 U.S.gal 90L 160 L 42.3 U.S.gal 160 L 423 U.S.gal 930K TRAVEL TIME - LOADED 930K TRAVEL TIME - EMPTY 275 TIME MIN) PERCENT GRADE TIME (MINE PERCENT GRADE 120 DISTANCE ONE WAY DISTANCE ONE WAY Performance Data 930K (LRC) Standard Lift Pin On Bucket Bucket Type General Purpose Pin On Rated bucket capacity 2.1 2.3 2.5 2.7 3.0 3.3 Struck capacity m yd m yd 19 2.1 2.3 2.5 2.7 Bucket width mm 2550 8'4" ft/in kg/m Ib/yd 1821 2550 8'4" 2018 3461 2855 94 1033 Nominal material density 100 percent fill factor Dump clearance at full lift and 45 discharge Reach at full lift and 45 discharge 3.0 2550 8'4" 1649 2754 2761 9'0" 3077 mm 2807 9'2" ft/in mm ft/in 1070 1109 3'4" 36" 37" mm 1560 1573 1587 ft/in 5'1" 5'1" 5'2" mm 2350 2413 2475 8'1" ft/in 7'8" 7'11" Reach at 45 discharge and 2130 mm (70") clearance Reach with lift arms horizontal and bucket level Digging depth Overall length Overall height with 100 100 100 mm in 3.9 3.9 3.9 mm ft/in 7551 249" mm 7488 24'6" 5122 16'9" 5933 5180 7613 24'11" 5239 17'2" 5970 bucket at full raise ft/in 16'11" mm 5951 19'5" 19'6" Loader clearance radius with bucket in carry position Tipping load straight (ISO 14397-1). Tipping load - straight (Rigid Tire)** 9908 9798 21,843 10 321 21,601 10 206 ft/in kg Ib kg lb kg lb kg Ib kg Ib kg Ib Tipping load - full turn (ISO 14397-1)" 22,753 8477 18.688 19'7" 9661 21,299 10 064 22,187 8246 18,179 8772 19,339 22,501 8375 18.463 8909 19,641 Tipping load - full turn (Rigid Tire)** 9018 19,881 Breakout force 12 891 12 158 11 488 28,419 13 135 26,803 13 198 29.096 25,326 13 297 Operating weight 28.956 29,314