2 torque charts and guidelines – John Deere rhino pd54 User Manual
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5.2 Torque Charts and Guidelines
Do not use these values if a different torque value or tightening procedure is given for a specific application. Torque values listed are for general use. Check
tightness of fasteners periodically.
Shear bolts are designed to fail under predertermined loads. Always replace shear bolts with identical grade.
Fasteners should be replaced with the same or higher grade. If higher grade fasteners are used, these should only be tightened to the strength of the original.
Make sure fasteners' threads are clean and that you properly start thread engagement. This will prevent them from failing when tightening.
SAE GRADE 5
Coarse Thread, Zinc-Plated
SAE GRADE 8
Coarse Thread, Zinc-Plated
SIZE
TORQUE
SIZE
TORQUE
ft. lbs.
Nm
ft. lbs.
Nm
1/4 - 20 (.250)
6
8
1/4 - 20 (.250)
9
12
5/16 - 18 (.3125)
13
18
5/16 - 18 (.3125)
18
24
3/8 - 16 (.375)
23
31
3/8 - 16 (.375)
33
45
7/16 - 14 (.4375)
37
50
7/16 - 14 (.4375)
52
70
1/2 - 13 (.500)
57
77
1/2 - 13 (.500)
80
108
9/16 - 12 (.5625)
82
111
9/16 - 12 (.5625)
115
156
5/8 - 11 (.625)
112
152
5/8 - 11 (.625)
159
215
3/4 - 10 (.750)
200
271
3/4 - 10 (.750)
282
382
7/8 - 9 (.875)
322
436.5
7/8 - 9 (.875)
454
615
1 - 8 (1.000)
483
655
1 - 8 (1.000)
682
925
SAE GRADE 5
Fine Thread, Zinc-Plated
SAE GRADE 8
Fine Thread, Zinc-Plated
SIZE
TORQUE
SIZE
TORQUE
ft. lbs.
Nm
ft. lbs.
Nm
1/4 - 28 (.250)
7
10
1/4 - 28 (.250)
10
14
5/16 - 24 (.3125)
14
19
5/16 - 24 (.3125)
20
27
3/8 - 24 (.375)
26
35
3/8 - 24 (.375)
37
50
7/16 - 20 (.4375)
41
56
7/16 - 20 (.4375)
58
79
1/2 - 20 (.500)
64
87
1/2 - 20 (.500)
90
122
9/16 - 18 (.5625)
91
123
9/16 - 18 (.5625)
129
175
5/8 - 18 (.625)
128
173
5/8 - 18 (.625)
180
244
3/4 - 16 (.750)
223
302
3/4 - 16 (.750)
315
427
7/8 - 14 (.875)
355
481
7/8 - 9 (.875)
501
679
1 - 12 (1.000)
529
717
1 - 12 (1.000)
746
1011
1 -14 (1.000)
541
733
1 -14 (1.000)
764
1036