Fan Belt Cutting Ring Bearing

c. Fan Belt

Index of Fit Sxy = = 21.2540 Sxx = = 5.5657 Syy = = 87.8593 Index of Fit r : r = = 0.9611 N ti Ti = LNti FTi Yi = LN{- LN[1-FTi]} Ti 2 Yi 2 Ti.Yi 1 2016 7.6089 0.0745 -2.5589 57.8949 6.5482 -19.4706 2 2400 7.7832 0.1809 -1.6120 60.5786 2.5985 -12.5465 3 3456 8.1479 0.2872 -1.0829 66.3877 1.1727 -8.8236 4 3528 8.1685 0.3936 -0.6927 66.7242 0.4798 -5.6580 5 3792 8.2406 0.5000 -0.3665 67.9083 0.1343 -3.0203 6 4008 8.2960 0.6064 -0.0700 68.8244 0.0049 -0.5809 7 4200 8.3428 0.7128 0.2211 69.6030 0.0489 1.8447 8 4344 8.3766 0.8191 0.5365 70.1666 0.2879 4.4944 9 4536 8.4198 0.9255 0.9545 70.8930 0.9111 8.0367 Total 32280 73.3843 -4.6709 598.9807 12.1863 -35.7241 Universitas Sumatera Utara

d. Cutting Ring

Index of Fit Sxy = = 23.5998 Sxx = = 4.4468 Syy = = 138.9721 Index of Fit r : r = = 0.9493 N ti Ti = LNti FTi Yi = LN{- LN[1-FTi]} Ti 2 Yi 2 Ti.Yi 1 1800 7.4955 0.0614 -2.7588 56.1831 7.6108 -20.6785 2 2664 7.8876 0.1491 -1.8233 62.2140 3.3245 -14.3817 3 2760 7.9230 0.2368 -1.3083 62.7737 1.7115 -10.3653 4 2880 7.9655 0.3246 -0.9355 63.4499 0.8751 -7.4517 5 2928 7.9821 0.4123 -0.6320 63.7135 0.3995 -5.0450 6 3000 8.0064 0.5000 -0.3665 64.1019 0.1343 -2.9344 7 3072 8.0301 0.5877 -0.1210 64.4823 0.0146 -0.9715 8 3168 8.0609 0.6754 0.1180 64.9774 0.0139 0.9514 9 3288 8.0980 0.7632 0.3649 65.5782 0.1331 2.9549 10 3768 8.2343 0.8509 0.6434 67.8037 0.4140 5.2981 11 3816 8.2470 0.9386 1.0261 68.0123 1.0530 8.4626 Total 33144 87.9303 -5.7929 703.2900 15.6845 -44.1610 Universitas Sumatera Utara

e. Bearing

Index of Fit Sxy = = 27.7590 Sxx = = 4.8028 Syy = = 169.1042 Index of Fit r : r = = 0.9740 N ti Ti = LNti FTi Yi = LN{- LN[1-FTi]} Ti 2 Yi 2 Ti.Yi 1 1848 7.5219 0.0565 -2.8455 56.5784 8.0966 -21.4031 2 2088 7.6440 0.1371 -1.9142 58.4302 3.6643 -14.6324 3 2184 7.6889 0.2177 -1.4042 59.1194 1.9717 -10.7965 4 2184 7.6889 0.2984 -1.0374 59.1194 1.0762 -7.9765 5 2688 7.8966 0.3790 -0.7413 62.3555 0.5496 -5.8540 6 2712 7.9054 0.4597 -0.4852 62.4960 0.2354 -3.8355 7 2736 7.9143 0.5403 -0.2520 62.6354 0.0635 -1.9945 8 3000 8.0064 0.6210 -0.0303 64.1019 0.0009 -0.2428 9 3000 8.0064 0.7016 0.1901 64.1019 0.0361 1.5220 10 3024 8.0143 0.7823 0.4216 64.2296 0.1778 3.3791 11 3120 8.0456 0.8629 0.6867 64.7315 0.4715 5.5246 12 3408 8.1339 0.9435 1.0558 66.1600 1.1148 8.5880 Total 31992 94.4664 -6.3559 744.0592 17.4585 -47.7218 Universitas Sumatera Utara LAMPIRAN V Perhitungan Waktu Rata-Rata Penggantian Komponen Mesin di PT. Sumatera Pioneer Building Material

5. Mesin Jaw Crusher

a. Fix Jaw