Case 2050M, Руководство оператора, Страница: 160 / 286

7 - MAINTENANCE
Inch non-flanged hardware
Nominal size SAE grade 5 bolt and nut SAE grade 8 bolt and nut
Locknut GrB W/
Gr5 bolt
Locknut GrC W/
Gr8 bolt
Unplated or
silver plated
Plated
W/ZnCr gold
Unplated or
Plated silver
Plated
W/ZnCr gold
1/4
8 N·m
( 71 lb in )
11 N·m
( 97 lb in )
12 N·m
( 106 lb in )
16 N·m
( 142 lb in )
8.5 N·m
( 75 lb in )
12.2 N·m
( 109 lb in )
5/16
17 N·m
( 150 lb in )
23 N·m
( 204 lb in )
24 N·m
( 212 lb in )
32 N·m
( 283 lb in )
17.5 N·m
( 155 lb in )
25 N·m
( 220 lb in )
3/8
30 N·m
( 22 lb ft )
40 N·m
( 30 lb ft )
43 N·m
( 31 lb ft )
57 N·m
( 42 lb ft )
31 N·m
( 23 lb ft )
44 N·m
( 33 lb ft )
7/16
48 N·m
( 36 lb ft )
65 N·m
( 48 lb ft )
68 N·m
( 50 lb ft )
91 N·m
( 67 lb ft )
50 N·m
( 37 lb ft )
71 N·m
( 53 lb ft )
1/2
74 N·m
( 54 lb ft )
98 N·m
( 73 lb ft )
104 N·m
( 77 lb ft )
139 N·m
( 103 lb ft )
76 N·m
( 56 lb ft )
108 N·m
( 80 lb ft )
9/16
107 N·m
( 79 lb ft )
142 N·m
( 105 lb ft )
150 N·m
( 111 lb ft )
201 N·m
( 148 lb ft )
111 N·m
( 82 lb ft )
156 N·m
( 115 lb ft )
5/8
147 N·m
( 108 lb ft )
196 N·m
( 145 lb ft )
208 N·m
( 153 lb ft )
277 N·m
( 204 lb ft )
153 N·m
( 113 lb ft )
215 N·m
( 159 lb ft )
3/4
261 N·m
( 193 lb ft )
348 N·m
( 257 lb ft )
369 N·m
( 272 lb ft )
491 N·m
( 362 lb ft )
271 N·m
( 200 lb ft )
383 N·m
( 282 lb ft )
7/8
420 N·m
( 310 lb ft )
561 N·m
( 413 lb ft )
594 N·m
( 438 lb ft )
791 N·m
( 584 lb ft )
437 N·m
( 323 lb ft )
617 N·m
( 455 lb ft )
1
630 N·m
( 465 lb ft )
841 N·m
( 620 lb ft )
890 N·m
( 656 lb ft )
1187 N·m
( 875 lb ft )
654 N·m
( 483 lb ft )
924 N·m
( 681 lb ft )
Identification
Inch bolts and free-spinning nuts
20083682
3
Grade marking examples
SAE Grade Identification
1 Grade 2 - No Marks 4 Grade 2 Nut - No Marks
2 Grade 5 - Three Marks
5
Grade 5 Nut - Marks 120 ° Apart
3 Grade 8 - Five Marks 6 Grade 8 Nut - Marks 60 ° Apart
7-4