Bosch A4VSG - Page 40

40/60 Installation
Bosch Rexroth AG, RE 92100-01-B/09.2012 Series 10, 11 and 30,
The following tightening torques apply:
• Female threads hole of the axial piston unit:
The maximum permissible tightening torques M
Gmax
are maximum values of the
for the female threads and must not be exceeded. Values, see Table 11.
• Fittings:
Observe the manufacturer's instruction regarding tightening torques for the
used fittings.
• Mounting bolts:
For mounting bolts with metric ISO thread according to DIN 13 or with thread
according to ASME B1.1, we recommend checking the tightening torque in
individual cases as per VDI 2230.
• Threaded plugs:
For the metallic threaded plugs supplied with the axial piston unit, the required
tightening torques of threaded plugs M
V
apply. Values, see Table 11.
Table 11: Tightening torques of the female threads and threaded plugs
Ports
Maximum permissible
tightening torque of the
female threads M
Gmax
Required tightening torque
of the threaded plugs M
V
WAF hexagon socket
of the threaded plugs
Standard Thread size
DIN 3852
1)
M8 x 1 10 Nm 7 Nm 3 mm
M10 x 1 30 Nm 15 Nm
2)
5 mm
M12 x 1.5 50Nm 25 Nm
3)
6 mm
M14 x 1.5 80 Nm 35 Nm 6 mm
M16 x 1.5 100 Nm 50Nm 8 mm
M18 x 1.5 140 Nm 60 Nm 8 mm
M22 x 1.5 210 Nm 80 Nm 10 mm
M26 x 1.5 230 Nm 120 Nm 12 mm
M27 x 2 330 Nm 135 Nm 12 mm
M33 x 2 540 Nm 225 Nm 17 mm
M42 x 2 720 Nm 360 Nm 22 mm
M48 x 2 900 Nm 400 Nm 24 mm
DIN 3852-2 G1/4 70 Nm 30 Nm 6 mm
DIN 3853 S8 Form W 50Nm
S12 Form W 90 Nm
ISO 11926 5/16-24 UNF-2B 10 Nm 7 Nm 1/8 in
3/8-24 UNF-2B 20 Nm 10 Nm 5/32 in
7/16-20 UNF-2B 40 Nm 18 Nm 3/16 in
9/16-18 UNF-2B 80 Nm 35 Nm 1/4 in
3/4-16 UNF-2B 160 Nm 70 Nm 5/16 in
7/8-14 UNF-2B 240 Nm 110 Nm 3/8 in
1 1/16-12 UN-2B 360 Nm 170 Nm 9/16 in
1 5/16-12 UN-2B 540 Nm 270 Nm 5/8 in
1 5/8-12 UN-2B 960 Nm 320 Nm 3/4 in
1 7/8-12 UN-2B 1200 Nm 390 Nm 3/4 in
1)
The tightening torques of the threaded plugs M
V
are valid for the delivery condition "dry" and for installation related screw condition
"lightly oiled".
2)
In the "lightly oiled" state, M
V
is reduced to 10 Nm or M10 x 1 to 17 Nm for M12 x 1.5. For the delivery condition "dry" and for
reduced M
V
, 10Nm for M10x1 and 17Nm for M12x1.5, the maximum permissible pressure is 420bar.
Tightening torques