Service/Spare Parts Manual
Series V14
MSG30-5510-M1/UK
12
Parker Hannifin
Pump & Motor Division Europe
Trollhättan, Sweden
Gauge ports AC/AH control
Pressure setting procedure
The pressure setting procedure is valid for all pressure
compensators (AC and AH).
1. Make sure that the motor has beensupplied with the
correct modulatingspring (ordering code and name
plate information should correspond).
2. Install 0 – 600 bar (0 – 8500 psi) gauges in port X1
and X5; refer tofig. 1.
3. Turn the adjustment screw counterclockwise to en-
sure that the threshold spring is unloaded. The dis-
tance between nut and screw end is approximately
23 mm when the threshold spring is unloaded.
Note:
The distance between nut and screw end should
not be more than 28 mm, because of risk for
loosing guiding of the spring.
4. Increase the system pressure (e.g. by blocking the
motor shaft) to desired pressure setting (read the
pressure in port X5).
5. Start to turn the threshold adjustmentscrew clock-
wise until the pressure ingauge X2 starts to increase.
Rightthreshold pressure setting has beenreached.
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.
fig. 1
12
Parker Hannifin
Pump and Motor Division
Trollhättan, Sweden
Service Manual
Series V14
Bulletin HY30-5510-M1/UK
Gauge ports AC/AH control
Pressure setting procedure
The pressure setting procedure is valid for
all pressure compensators (AC and AH).
1.
Make sure that the motor has been
supplied with the correct modulating
spring (ordering code and name
plate information should correspond).
2.
Install 0 - 600 bar (0 - 8500 psi)
gauges in port X1 and X5; refer to
fig. 1.
3.
Turn the adjustment screw counter
clockwise to ensure that the thres-
hold spring is unloaded.
The distance between nut and screw
end is approximately 23 mm when
the threshold spring is unloaded.
Note!
The distance between nut and screw
end should not be more than 28 mm, becau-
se of risk for loosing guiding of the spring.
4.
Increase the system pressure (e.g.
by blocking the motor shaft) to desi
red pressure setting (read the pres
sure in port X5).
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.
fig. 1
5.
Start to turn the threshold adjustment
screw clockwise until the pressure in
gauge X2 starts to increase. Right
threshold pressure setting has been
reached.
Note:
One turn of the setting screw cor-
responds to 57 bar (820 psi).
Port X5
Port X4
Gauge port
X1 (max)
Gauge port
X2 (min)
Main port
A
Main port
B
Gauge port
X2 (min)
Gauge port
X1 (max)
Port X4
Port X5
Main port
A
Main port
B
Controls and gauge ports
