Case 2050M, Руководство оператора, Страница: 158 / 286

7 - MAINTENANCE
Torque charts - Minimum tightening torques for normal assembly
Metric non-flanged hardware
Nominal
size Class 8.8 bolt and Class 8 nut Class 10.9 bolt and Class 10 nut
Locknut CL .8
W/CL8.8 bolt
Locknut CL.10
W/CL10.9 bolt
Unplated Plated W/ZnCr Unplated Plated W/ZnCr
M4
2.2 N·m
( 19 lb in )
2.9 N·m
( 26 lb in )
3.2 N·m
( 28 lb in )
4.2 N·m
( 37 lb in )
2 N·m
( 18 lb in )
2.9 N·m
( 26 lb in )
M5
4.5 N·m
( 40 lb in )
5.9 N·m
( 52 lb in )
6.4 N·m
( 57 lb in )
8.5 N·m
( 75 lb in )
4 N·m
( 36 lb in )
5.8 N·m
( 51 lb in )
M6
7.5 N·m
( 66 lb in )
10 N·m
( 89 lb in )
11 N·m
( 96 lb in )
15 N·m
( 128 lb in )
6.8 N·m
( 60 lb in )
10 N·m
( 89 lb in )
M8
18 N·m
( 163 lb in )
25 N·m
( 217 lb in )
26 N·m
( 234 lb in )
35 N·m
( 311 lb in )
17 N·m
( 151 lb in )
24 N·m
( 212 lb in )
M10
37 N·m
( 27 lb ft )
49 N·m
( 36 lb ft )
52 N·m
( 38 lb ft )
70 N·m
( 51 lb ft )
33 N·m
( 25 lb ft )
48 N·m
( 35 lb ft )
M12
64 N·m
( 47 lb ft )
85 N·m
( 63 lb ft )
91 N·m
( 67 lb ft )
121 N·m
( 90 lb ft )
58 N·m
( 43 lb ft )
83 N·m
( 61 lb ft )
M16
158 N·m
( 116 lb ft )
210 N·m
( 155 lb ft )
225 N·m
( 166 lb ft )
301 N·m
( 222 lb ft )
143 N·m
( 106 lb ft )
205 N·m
( 151 lb ft )
M20
319 N·m
( 235 lb ft )
425 N·m
( 313 lb ft )
440 N·m
( 325 lb ft )
587 N·m
( 433 lb ft )
290 N·m
( 214 lb ft )
400 N·m
( 295 lb ft )
M24
551 N·m
( 410 lb ft )
735 N·m
( 500 lb ft )
762 N·m
( 560 lb ft )
1016 N·m
( 750 lb ft )
501 N·m
( 370 lb ft )
693 N·m
( 510 lb ft )
NOTE: M4 through M8 hardware torque specifications are shown in pound-inches. M10 through M24 hardware torque
specifications are shown in pound-feet.
7-2