MacDon D65 - Manual (Page 7)

169784 5 Revision A
RECOMMENDED TORQUES
A. GENERAL
The tables shown below give correct torque
values for various bolts and cap screws.
 Tighten all bolts to the torques specified in
chart, unless otherwise noted throughout this
manual.
 Check tightness of bolts periodically, using
bolt torque chart as a guide.
 Replace hardware with the same
strength bolt.
 Torque figures are valid for non-greased or
non-oiled threads and heads unless otherwise
specified. Do not grease or oil bolts or cap
screws unless specified in this manual.
 When using locking elements, increase torque
values by 5%.
B. SAE BOLTS
BOLT DIA.
"A"
in.
NC BOLT TORQUE*
SAE-5 SAE-8
lbf·ft N·m lbf·ft N·m
1/4 9 12 11 15
5/16 18 24 25 34
3/8 32 43 41 56
7/16 50 68 70 95
1/2 75 102 105 142
9/16 110 149 149 202
5/8 150 203 200 271
3/4 265 359 365 495
7/8 420 569 600 813
1 640 867 890 1,205
* Torque categories for bolts and cap screws are identified by
their head markings.
C. METRIC BOLTS
BOLT DIA.
"A"
STD COARSE BOLT TORQUE*
8.8 10.9
lbf·ft N·m lbf·ft N·m
M3 0.4 0.5 1.3 1.8
M4 2.2 3 3.3 4.5
M5 4 6 7 9
M6 7 10
11 15
M8 18 25 26 35
M10 37 50 52 70
M12 66 90 92
125
M14 103 140 148 200
M16 166 225 229 310
M20 321 435 450 610
M24 553 750 774 1050
M30 1,103 1,495 1,550 2,100
M36 1,917 2,600 2,710 3,675
* Torque categories for bolts and cap screws are identified by
their head markings.
SAE-5 SAE-8