Metric Bolt Specifications Bolting Into Cast Aluminum; Flare-Type Hydraulic Fittings - MacDon M Series Unloading And Assembly Instructions

6.1.3 Metric Bolt Specifications Bolting into Cast Aluminum
Table 6.9 Metric Bolt Bolting into Cast Aluminum
Nominal 8.8
Size (A) (Cast Aluminum)
N·m
–
M3
–
M4
–
M5
M6 9
M8 20
M10 40
M12 70
–
M14
–
M16

6.1.4 Flare-Type Hydraulic Fittings

1. Check flare (A) and flare seat (B) for defects that might
cause leakage.
2. Align tube (C) with fitting (D) and thread nut (E) onto
fitting without lubrication until contact has been made
between flared surfaces.
3. Torque fitting nut (E) to specified number of flats from
finger tight (FFFT) or to a given torque value in Table
6.10 Flare-Type Hydraulic Tube Fittings, page
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.
147962
REFERENCE
Bolt Torque
10.9
(Cast Aluminum)
N·m
ft·lbf ft·lbf
– –
–
4 2.6
– 5.5
8
6 12
14 28
55
28
52 100
– –
– –
363.
1
9
20
40
Figure 6.9: Bolt Grades
73
–
–
Figure 6.10: Hydraulic Fitting
362
Revision A