15
Parker Hannifin
Pump and Motor Division
Trollhättan, Sweden
Service Manual
Series V14
Bulletin HY30-5510-M1/UK
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 ports EO/EP/HO/HP
The pressure/current setting procedure is
valid for all proportional and two-position con-
trols (EO, EP, HO and HP).
1.Make sure that the motor has been
supplied with the correct modulating
spring (ordering code and nameplate
information should agree). The hydraulic
oil should be 50°C (120°F).
2.Install 0 - 600 bar (0 - 8500 psi) gauge
in port X2. Use a 0 - 60 bar (0 - 850 psi) gauge to
measure pilot pressure if it is a HO or HP.
3.Turn the adjustment screw counter
clockwise to ensure that the threshold spring is
unloaded. The distance between nut and screw
end is approximately 22 mm when the threshold
spring is unloaded.
Note!
If you remove solenoid or end cover the
maximum distance between nut and screw end
should not be more then 16 mm.
If the unit is assembled the maximum distance
between nut and screw end should not be more
then 22 mm.
HO or HP controls
4.Pressurize port X5 to desired threshold (the
control goes to min displ.).
Standard factory setting is 10 bar.
Optional setting is 5 - 25 bar.
EO or EP controls
4.Apply the desired threshold current to the sole-
noid (the control goes to min displ.).
5.
Start to turn the threshold adjustment
screw clockwise until the pressure in
gauge X1 starts to increase. Right
threshold pressure setting has been
reached.
Note:
One turn of the setting screw corresponds
to:
•
40 mA on 12 VDC solenoids (EO, EP)
•
20 mA on 24 VDC solenoids (EO, EP)
•
2,1 bar (30 psi) on HO and HP controls
Standard factory setting is
400 mA (12 VDC)
200 mA (24 VDC)
Main port
A
Main port
B
Gauge port
X1 (max)
Gauge port
X2 (min)
Port X4
EO/EP control
Main port
A
Main port
B
Gauge port
X1 (max)
Gauge port
X2 (min)
Port X4
Port X5
HO/HP control