REFERENCE
6.1.3 Metric B
olt S pecifications Bolting into Cast Aluminum
Table 6.9 Metric Bolt Boltin g into Cast Aluminum
Bolt Torque
8.8
(Cast Alumin
um)
10.9
(Cast Alumin
um)
Nominal
Size (A )
N·m
ft·lbf
N·m
ft·lbf
M3
–––
1
M4
––
42.6
M5
––
8
5.5
M6 9 6 12 9
M8 20 14 28 20
M10 40 28
55
40
M12 70 52 100 73
M14
––––
M16
––––
Figure 6.9: B olt Grades
6.1.4 Flare-Type H ydraulic Fittings
1. Check flare (A) and flare seat (B) for defects that might
cause leakage.
2. Aligntube(C)withfitting (D) and thread nut (E) onto
fitting without lubrication until contac t has been made
between flared surfaces.
3. Torque fittingnut(E)tospecified number of flats from
finger tight (FFFT) or to a given torque value in Table
6.10 Flare-Type Hydraulic Tube Fittings, page 109.
4. Use two wrenches to prevent fitting (D) from rotating.
Place one wrench on fitting body (D), and tighten
nut (E) with other wrench to torque shown.
5. Assess final condition of connection.
Figure 6.10
: Hydraulic Fitting
214049 108 Revision A
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