Bosch Rexroth A6VM series 71 - HA Control: Hydraulic Override and Circuit Diagrams; HA.T3: Hydraulic Override Control

RE-A 91610/12.2015, Bosch Rexroth Corp.
Axial piston variable motor | A6VM series 71
HA – Automatic high-pressure related control
19
HA.T3 hydraulic override, remote control, proportional
With the HA.T3 control, the beginning of control can be
influenced by applying a pilot pressure to port X.
For each 15psi(1bar) of pilot pressure increase, the
beginning of control is reduced by 250psi(17bar).
Beginning of control setting 4350psi
(300bar)
4350psi
(300bar)
Pilot pressure at port X 0 psi 145psi
0 bar (10bar)
Beginning of control at 4350psi 1900psi
(300bar) (130bar)
Note
Maximum permissible pilot pressure 1450psi (100bar).
▼ Circuit diagram HA1.T3
B
A
M
1
T
2
T
1
V
g min
V
g max
X
U
G
▼ Circuit diagram HA2.T3
B
A
M
1
T
2
T
1
G
X
V
g min
V
g max
U