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