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VMR2004_001_00_02A.FM
XI
TIGHTENING TORQUES
Tighten fasteners to torque mentioned in exploded views and text. When they are not specified refer to
following tables. The tables also give the metric conversion.
In order to avoid a poor assembling, tighten screws and bolts in accordance with the following procedure:
1. Manually screw all screws, bolts and/or nuts.
2. Apply the half of the recommended torque value.
CAUTION:
Be sure to use the proper tightening torque for the proper strength grade.
NOTE:
When possible, always apply torque on the nut.
3. Torque at the recommended torque value.
NOTE:
Always torque screws, bolts and/or nuts in a criss-cross sequence.
WARNING
Torque wrench tightening specifications must be strictly adhered to.
Locking devices (ex.: locking tab, elastic stop nut, self-locking fasteners, etc.) must be installed or
replaced with new ones where specified. If the efficiency of a locking device is impaired, it must
be renewed.
TIGHTENING
TORQUE
STRENGTH GRADE
GRADE 5.8
GRADE 8.8
GRADE 10.9
GRADE 12.9
DIM
E
NS
ION
M4
1.5 to 2 N•m
(13 to 18 lbf•
in
)
2.5 to 3 N•m
(22 to 27 lbf•
in
)
3.5 to 4 N•m
(31 to 35 lbf•
in
)
4 to 5 N•m
(35 to 44 lbf•
in
)
M5
3 to 3.5 N•m
(27 to 31 lbf•
in
)
4.5 to 5.5 N•m
(40 to 47 lbf•
in
)
7 to 8.5 N•m
(62 to 75 lbf•
in
)
8 to 10 N•m
(71 to 89 lbf•
in
)
M6
6.5 to 8.5 N•m
(58 to 75 lbf•
in
)
8 to 12 N•m
(71 to 106 lbf•
in
)
10.5 to 15 N•m
(93 to 133 lbf•
in
)
16 N•m (12 lbf•ft)
M8
15 N•m (11 lbf•ft)
24.5 N•m (18 lbf•ft)
31.5 N•m (23 lbf•ft)
40 N•m (30 lbf•ft)
M10
29 N•m (21 lbf•ft)
48 N•m (35 lbf•ft)
61 N•m (45 lbf•ft)
72.5 N•m (53 lbf•ft)
M12
52 N•m (38 lbf•ft)
85 N•m (63 lbf•ft)
105 N•m (77 lbf•ft)
127.5 N•m (94 lbf•ft)
M14
85 N•m (63 lbf•ft)
135 N•m (100 lbf•ft)
170 N•m (125 lbf•ft)
200 N•m (148 lbf•ft)
INTRODUCTION
Summary of Contents for DS 650
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