36/56 Installation
Bosch Rexroth AG, A22VG Series 40, RE 93221-01-B/07.2013
Table 10: Ports A22VG series 40
1)
Ports
p
max
[bar]
2)
State
A, B Service line port 420 O
S Suction port (only with boost pump) 5 O
T Drain port 3 O
R Air bleed 3 X
X
1
,
X
2
Control pressure (upstream of orifice, only HP, HW, EP
and ET)
30 X
X
3
,
X
4
3)
Stroking chamber pressure 30 X
X
5
,
X
6
Control pressure (upstream of orifice, HT only) 30 O
Y Pilot pressure, outlet (only with DA control valve) 30 O
G Boost pressure, inlet 30 O
G
1
Boost pressure, inlet (only with DA control valve) 30 O
G
2
Boost pressure, outlet (only with boost pump) 30 O
M
G
Boost pressure measurement G 30 X
M
A
, M
B
Measuring pressure A, B 420 X
1)
The measuring system and thread size can be taken from the installation drawing.
2)
Short-term pressure spikes may occur depending on the application. Keep this in mind when
selecting measuring devices and fittings.
3)
Optional
O = Must be connected (plugged on delivery)
X = Plugged (in normal operation)
PortG (or G
1
on the version with DA control valve) must be charged with boost
pressure by the customer.
The following tightening torques apply:
t Female threads hole of the axial piston unit:
The maximum permissible tightening torques M
Gmax
are maximum values of the for
the female threads and must not be exceeded. Values, see Table 11.
t Fittings:
Observe the manufacturer’s instruction regarding tightening torques for the used
fittings.
t 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.
t 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.
Tightening torques
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