3 bolt torque, Special torque requirements, Sae 2 bolt diameter "a" sae 5 sae 8 – Echo 76624 Owners Manual v.1 User Manual
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6 INCH CHIPPER
SPECIFICATIONS
7.3 bolT TorQue
the tables shown below give correct torque values for various bolts and capscrews. tighten all bolts to the torques
specified in chart unless otherwise noted. Check tightness of bolts periodically, using this bolt torque chart as a guide.
Fasteners should be replaced with the same grade. tighten serrated or center-lock nuts to the full torque value.
Do not use these values if a different torque value or tightening procedure is given for a specific application. Torque
values listed are for general use only.
Torque figures indicated at left are
valid for non-greased or non-oiled
threads and heads unless otherwise
specified. Therefore, do not grease
or oil bolts or capscrews unless
otherwise specified in this manual.
When using locking elements, in-
crease torque values by 5%.
* torque value for bolts and
capscrews are identified by their
head markings.
SAE - 8
SAE - 2
A
SAE - 5
SAE
Grade
and
Head
Markings
BOLT DIAMETER
UNIFIED INCH BOLT TORQUE VALUES
(unless otherwise specified in the manual)
Bolt Torque *
(N.m)
(ft - lb)
(N.m)
(ft - lb)
(N.m)
(ft - lb)
1/4"
7.5
5.5
12
9
17
12.5
5/16”
15
11
25
18
35
26
3/8”
27
20
44
33
63
46
7/16”
44
32
70
52
100
75
1/2”
67
50
110
80
150
115
9/16”
95
70
155
115
225
160
5/8”
135
100
215
160
300
225
3/4”
240
175
375
280
550
400
7/8”
240
175
625
450
875
650
1”
360
270
925
675
1300
975
1-1/8”
510
375
1150
850
1850
1350
1-1/4”
725
530
1650
1200
2600
1950
1-3/8”
950
700
2150
1550
3400
2550
1-1/2”
1250
930
2850
2100
4550
3350
SAE 2
Bolt
Diameter
"A"
SAE 5
SAE 8
sPecial TorQue reQuiremenTs
locaTion on machine
hardWare descriPTion
TorQue (unified inch)
oN ChIPPeR dISk, blade MouNtING
CaP SCReWS
1/2 x 1-3/4 Flhd (aStMF835)
CaP SCReWS
20 Ft-lbS