Recommended Torques; General; Sae Bolts; Metric Bolts - MacDon R85 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 with the same strength
bolt.

Torque figures are valid for non-greased or
non-oiled threads
otherwise specified. Do not grease or oil
bolts or capscrews unless specified in this
manual.

When using locking elements, increase
torque values by 5%.
B. SAE BOLTS
NC BOLT TORQUE*
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 capscrews are identified by
their head markings.
169561
and heads unless
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

GENERAL

C. METRIC BOLTS
BOLT
DIA. "A"
M3
M4
M5
M6
M8
M10
M12
M14
M16
M20
M24
M30
M36
* Torque categories for bolts and capscrews are identified by
their head markings.
5
STD COARSE BOLT TORQUE*
8.8
lbf·ft N·m lbf·ft
0.4 0.5 1.3
2.2 3 3.3
4 6 7
7 10 11
18 25 26
37 50 52
66 90 92
103 140 148
166 225 229
321 435 450
553 750 774
1103 1495 1550
1917 2600 2710
10.9
N·m
1.8
4.5
9
15
35
70
125
200
310
610
1050
2100
3675
Revision C