MacDon M Series - Metric Bolt Specifications Bolting into Cast Aluminum; Flare-Type Hydraulic Fittings

REFERENCE
6.1.3 Metric B
olt Specifications Bolting into Cast Aluminum
Table 6 .9 M etric Bolt Bolting into Cast Aluminum
Bolt To rque
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: Bolt Grades
6.1.4 Flare-Type H ydraulic Fittings
1. Chec k flare (A) and flare seat (B) for defects that might
cause leakage.
2. Aligntube(C)withfitting (D) and thread nut (E) onto
fitting without lubr ica tio n until contact 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 363.
4. Use two wrenches to prevent fitting (D) from rotatin g.
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
147962 362 Revision A