40/60 Installation
Bosch Rexroth AG
, A15VSO/A15VLO Series 11, RE 92801-01-B/11.2018
Table 13: Tightening torques for female threads and threaded plugs
Ports
Maximum permissible
tightening torque of female
threads
M
G max
Required tightening torque
of threaded plugs
M
V
WAF hexagon socket
of the threaded plug
Standard
Thread size
ISO 6149
M8 × 1
10 Nm
7 Nm
4 mm
M10 × 1
30 Nm
15 Nm
5 mm
M12 × 1.5
50 Nm
25 Nm
6 mm
M14 × 1.5
80 Nm
45 Nm
6 mm
M16 × 1.5
100 Nm
55 Nm
8 mm
M18 × 1.5
140 Nm
70 Nm
8 mm
M20 × 1.5
170 Nm
80 Nm
10 mm
M22 × 1.5
210 Nm
100 Nm
10 mm
M27 × 2
330 Nm
170 Nm
12 mm
M30 × 2
420 Nm
215 Nm
17 mm
M33 × 2
540 Nm
310 Nm
17 mm
M42 × 2
720 Nm
330 Nm
22 mm
M48 × 2
900 Nm
420 Nm
22 mm
1)
The tightening torques for the threaded plugs are valid for the condition "dry" and "lightly oiled".
2)
The tightening torques for the threaded plugs are valid for the condition "dry" – in the condition "lightly oiled", the tightening torques
for M10 × 1 are reduced to 10 Nm and for M12 × 1.5 to 17 Nm.
To connect the axial piston unit to the hydraulic system:
1.
Remove the protective plugs or threaded plugs from the ports where the
connections should be made according to the hydraulic circuit diagram.
2.
Make sure the sealing surfaces of the hydraulic ports and functional surfaces are
not damaged.
3.
Use only clean hydraulic lines or flush them before installation.
(Observe chapter 7.5 "Performing flushing cycle" on page 42 when you flush
out the entire system.)
4.
Connect the lines in accordance with the installation drawing and the machine
or system circuit diagram. Check that all ports are connected or plugged with
threaded plugs. With inside-reservoir installation, the housing of the axial
piston unit must be filled before fitting the lines and filling the reservoir with
hydraulic fluid.
5.
Properly tighten the fittings (observe tightening torques!). Mark all properly
tightened fittings, e.g. with a permanent marker.
6.
Check all pipes and hose lines and every combination of connecting pieces,
couplings or connecting points with hoses or pipes to ensure they are in safe
working condition.
Procedure