Installation 45/68
RE 92003-01-B/12.2015, A4VG Series 32,
Bosch Rexroth AG
Table 10: Ports A4VG Series 32
Ports
1)
p
max
[bar]
2)
State
6)
A, B
Working port
450
O
S
Suction port
5
O
3)
T
1
Drain port
3
O
4)
T
2
Drain port
3
X
4)
R
Air bleed port
3
X
X
1
, X
2
Control pressure port (upstream of orifice)
40
X
X
1
, X
2
Control pressure port (upstream of orifice, DG
only)
40
O
X
3
, X
4
5)
Stroking chamber pressure port
40
X
G
Boost pressure port inlet
40
X
P
S
Pilot pressure port
40
X
P
S
Pilot pressure port (DA7 only)
40
O
Y
Pilot pressure port outlet (DA7 only)
40
O
M
A
, M
B
Measuring port pressure A, B
450
X
M
H
Measuring port, high pressure
450
X
F
a
Boost pressure port inlet
40
X
F
a1
Boost pressure port inlet (attachment filter)
40
X
F
e
Boost pressure port outlet
40
X
F
S
Line from filter to suction port (cold start)
40
X
Y
1
, Y
2
Pilot pressure port (pilot signal HD only)
40
O
Z
Pilot pressure port (inch signal DA8 only)
40
X
1)
The measuring system and thread size can be taken from the installation drawing.
2)
Depending on the application, short-term pressure peaks can occur. Keep this in mind when
selecting measuring equipment and fittings.
3)
Closed with external feed in supply.
4)
Depending on the installation position, T
1
or T
2
must be connected (see chapter 7.3 “Installation
5)
Optional
6)
O = Must be connected (plugged when delivered)
X = Plugged (in normal operation)
The following tightening torques apply:
•
Fittings:
Observe the manufacturer's specifications regarding the tightening torques of the
used fittings.
•
Female threads in the axial piston unit:
The maximum permissible tightening torques
M
G max
are maximum values of the
female threads and must not be exceeded. For values, see Table 11.
•
Threaded plugs:
For the metallic threaded plugs supplied with the axial piston unit, the required
tightening torques of threaded plugs
M
V
apply. For values, see Table 11.
•
Mounting bolts:
For mounting bolts with metric ISO thread according to DIN 13 or thread according
to ASME B1.1, we recommend checking the tightening torque in individual cases in
accordance with VDI 2230.
Tightening torques
