J&M GC-31T Manual - Manual (Page 6)

4
GENERAL INFORMATION
BOLT TORQUE CHART
Always tighten hardware to these values unless a different torque or tightening procedure is listed for 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 for SAE hardware and Metric for Metric hardware.
Make sure fastener threads are clean and you start thread engagement properly.
All torque values are given to specifications used on hardware defined by SAE J1701 & J1701M (JUL 96)
TIGHTENING WHEEL NUTS
Standard 3/4” wheel studs and nuts should be tightented to torque 500 Ft.-Lbs. during initial operation of the grain cart
and then checked for proper torque after every 10 hours of use. Failure to do so may damage wheel nut seats. Once
seats are damaged, it will become impossible to keep nuts tight. Standard 22mm studs with 900/60R32 tires should be
tightened to torque 500 Ft.-Lbs.
Diameter
(Millimeters)
Wrench
Size
N-m Lbs.-
FT
N-m Lbs.-
FT
N-m Lbs.-
FT
N-m Lbs.-
FT
Diameter
Thread Pitch
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 80 151 111 118 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 334 172 323 239 263 194 353 268 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 40mm 1175 867 1626 1199 1258 928 1740 1283 30 X 2.0
SAE Series
Torque Chart
Marking On Head
SAE 2 SAE 5 SAE 8
Diameter
(inches)
Wrench Size 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 Series
Torque Chart
Coarse Thread
Marking on Head
Fine Thread
Marking On Head
Metric 8.8 Metric 10.9 Metric 8.8 Metric 10.9