Recommended Torques; General; Sae Bolts; Metric Bolts - MacDon A30-D Unloading And Assembly Instructions

RECOMMENDED TORQUES

A. GENERAL
•
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
strength bolt.
•
Torque figures are valid for non-greased or
non-oiled threads
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" SAE-5
(in.)
lbf·ft
1/4 9
5/16 18
3/8 32
7/16 50
1/2 75
9/16 110
5/8 150
3/4
265
7/8 420
1 640
* Torque categories for bolts and cap screws are identified by
their head markings.
169001
RECOMMENDED TORQUES
with the same
and heads unless
NC bolt torque*
SAE-8
N·m lbf·ft N·m
12 11 15
24 25 34
43 41 56
68 70 95
102 105 142
149 149 202
203 200 271
365 495
359
569 600 813
867 890 1205
SAE-5 SAE-8
C. METRIC BOLTS
Bolt dia.
"A"
lbf·ft
M3 0.4
M4 2.2
M5 4
M6 7
M8 18
M10 37
M12 66
M14 103
M16 166
M20 321
M24 553
M30 1103
M36 1917
* Torque categories for bolts and cap screws are identified by
their head markings.
5
Std coarse bolt torque*
8.8 10.9
N·m lbf·ft
0.5 1.3
3 3.3
6 7
10 11
25 26
50 52
90 92
140 148
225 229
435 450
750 774
1495 1550
2600 2710
Revision F
N·m
1.8
4.5
9
15
35
70
125
200
310
610
1050
2100
3675