Macdon R85 Rotary Disc 16 Foot Self-Propelled Windrower H User Manual Page 108

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MAINTENANCE AND SERVICING
7.2 Torque Spe
cications
The following
tables give correct torque values for various bolts, cap screws, and hydraulic ttings.
Tighten all bo
ltstothetorquesspecied in chart (unless otherwise noted throughout this manual).
Replace hard
ware with the same s trength and grade bolt.
Check tightn
ess of bolts periodically, using the tables below as a guide.
Torque categ
ories for bolts and cap screws are identied by their head markings.
7.2.1 SAE Bo
lt Torque Specications
Torque valu
es shown in this table are valid for non-greased,
or non-oil
ed threads and heads. Therefore, do NOT grease
or oil bolt
s or cap screws unless otherwise specied in
this manua
l.
Table 7.1
SAE Grade 5 Bolt and Grade 5 Free Spinning
Torque (ft·lbf)
(*in·lbf)
Torque (N·m)
Nominal
Size (A)
Min. Max. Min. Max.
1/4-20 *106 *117
11.9 13.2
5/16-18 *218 *241
24.6 27.1
3/8-16
32 36 44 48
7/16-14
52
57
70
77
1/2-13
79 87 106 118
9/16-12
114 126 153 170
5/8-11
157 173 212 234
3/4-10
281 311 380 420
7/8-9
449 496 606 669
1-8 611 676 825 912
Figure 7.1
A-NominalSize B-SAE-8
C - SAE-5 D - SAE-2
169457 1
00
Rev. F
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