Service/Spare Parts Manual
Series V16
MSG30-5526-M1/UK
15
Parker Hannifin
Pump & Motor Division Europe
Trollhättan, Sweden
Parker Hannifin
Pump & Motor Division Europe
Trollhättan, Sweden
Controls and gauge ports
Gauge ports AC control
Threshold setting procedure
AC with positive control characteristics (T code)
With motor not pressurized (ACI control type) or with
port X5 (ACE control type) not pressurized, the motor
will be kept at minimum displacement.
1. Make sure that the motor has been supplied with the
correct modulating spring (ordering code and name
plate information should agree). The hydraulic oil
should be 50°C.
2. Install a 0 – 600 bar gauge in port X1 and X5.
3. Turn the adjustment screw counter clockwise to en-
sure that the threshold spring is unloaded.
4. Pressurize the motor (ACI control type) and port X5
for ACE control type to desired threshold pressure
(at this pressure the control starts to go to max. dis-
placement).
5. Start turn the threshold adjustment screw clockwi-
se until the pressure gauge in port X1 starts to de-
crease. Right threshold pressure has been reached.
Note:
One turn of the setting screw corresponds to
57 bar (820 psi)
WARNING
In order to prevent injury to the technician or the
bystanders during the adjustment procedure,
all hydraulic functions on the vehicle/machine
should be disabled (e.g. wheels raised off the
ground, work functions disconnected).
Avoid fast forward/reversed changes that
can damage the synchronizing shaft.
Gauge/pilot ports (ACI compensator)
X1
Setting piston pressure
(large setting piston area)
X2
Servo supply pressure (after orifice)
X4
Servo supply pressure (before orifice)
Port sizes:
–
M14x1.5 (ISO version)
–
9
/
16
"-18 O-ring boss (SAE version).
Main port A
Main port B
Port X4
Port X5
Port X1
Port X2
Airbleed
Port locations - V16 -220/270 with AC control.
Setting screw
Gauge/pilot ports (ACE compensator)
X1
Setting piston pressure
(large setting piston area)
X2
Servo supply pressure (after orifice)
X4
Servo supply pressure (before orifice)
X5
Pilot pressure
Port sizes:
–
M14x1.5 (ISO version)
–
9
/
16
"-18 O-ring boss (SAE version).