LS tractor 30139708, Руководство оператора

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TORQUE TIGHTENING CHART
Minimum hardware tightening torques
In foot pounds (Newton-meters) for normal assembly applications
Always tighten hardware to these values unless a different torque value or tightening procedure is listed
for a specific application.
Fasteners must always be replaced with the same grade as specified in the manual parts list.
Always use the proper tool for tightening hardware : SAE or SAE hardware and Metric for metric hardware.
Make sure fastener threads are clean and you start thread engagement properly.
Inch hardware
SAE Grade 2 SAE Grade 5 SAE Grade 8
(No dashes) (3 Radial dashes) (6 Radial dashes)
Diameter
(Inches)
Wrench
Size
Marking on head
SAE 2 SAE 5 SAE 8
lbs.-ft N-m lbs.-ft N-m lbs.-ft N-m
1/4" 7/16" 6 8 10 13 14 18
5/16" 1/2" 12 17 19 26 27 37
3/8" 9/16" 23 31 35 47 49 67
7/16" 5/8" 36 48 55 75 78 106
1/2" 3/4" 55 75 85 115 120 163
9/16" 13/16" 78 106 121 164 171 232
5/8" 15/16" 110 149 170 230 240 325
3/4" 1-1/8" 192 261 297 403 420 569
7/8" 1-5/16" 306 416 474 642 669 907
1" 1-1/2" 467 634 722 979 1020 1383
Metric hardware
Metric Metric
Grade 8.8 Grade 10.9
Diameter &
thread pitch
(Millimeters)
Wrench
Size
Coarse thread Fine thread
Diameter &
thread pitch
(Millimeters)
Marking on head Marking on head
Metric 8.8 Metric 10.9 Metric 8.8 Metric 10.9
N-m lbs.-ft N-m lbs.-ft N-m lbs.-ft N-m lbs.-ft
6 x 1.0 10mm 8 6 11 8 8 6 11 8 6 x 1.0
8 x 1.25 13mm 20 15 27 20 21 16 29 22 8 x 1.0
10 x 1.5 16mm 39 29 54 40 41 30 57 42 10 x 1.25
12 x 1.75 18mm 68 50 94 70 75 55 103 76 12 x 1.25
14 x 2.0 21mm 109 80 151 111 116 87 163 120 14 x 1.5
16 x 2.0 24mm 169 125 234 173 181 133 250 184 16 x 1.5
18 x 2.5 27mm 234 172 323 239 263 194 363 268 18 x 1.5
20 x 2.5 30mm 330 244 457 337 367 270 507 374 20 x 1.5
22 x 2.5 34mm 451 332 623 460 495 365 684 505 22 x 1.5
24 x 3.0 36mm 571 421 790 583 623 459 861 635 24 x 2.0
30 x 3.0 46mm 1175 867 1626 1199 1258 928 1740 1283 30 x 2.0
SAE Series
torque chart
SAE Bolt head
Identification
Metric Series
torque chart
Metric Bolt Head
Identification