Service/Spare Parts Manual
Series V14
MSG30-5510-M1/UK
13
Parker Hannifin
Pump & Motor Division Europe
Trollhättan, Sweden
Parker Hannifin
Pump & Motor Division Europe
Trollhättan, Sweden
EO/EP/HO/HP control description
Basically, the controls function in a similar way. At incre-
asing solenoid current (EP) or increasing pilot pressure
(HP) the control moves towards the min displacement
position. At decreasing current/pilot pressure, the con-
trol retracts towards max displacement.
In comparison with EP and HP, the EO and HO controls
have no modulating spring or feedback arm; this me-
ans that only min and max displacements (but no in-
termediate positions) are available with these controls
13
Parker Hannifin
Pump and Motor Division
Trollhättan, Sweden
Service Manual
Series V14
Bulletin HY30-5510-M1/UK
EO/EP/HO/HP control description
Basically, the controls function in a similar
way. At increasing solenoid current (EP) or
increasing pilot pressure (HP) the control
moves towards the min displacement posi-
tion. At decreasing current/pilot pressure,
the control retracts towards max displace-
ment.
In comparison with EP and HP, the EO and
HO controls have no modulating spring or
feedback arm; this means that only min and
max displacements (but no intermediate
positions) are available with these controls.
Module cross section
(EP shown)
1*.
Two-part seal
2.
Control module housing
3.
Treshold adjustment screw
4.
Feedback arm (EP, HP only)
5.
Treshold spring
6.
Modulating spring (EP, HP only)
7.
Servo valve spool
8.
Solenoid (EO, EP only);
cover on HO, HP
9.
End cover (max displ. limit)
10.
Max displ. limiting screw/bushing
11.
Setting piston
12.
Connecting arm
13.
Set screws
14.
Min displ. limiting screw/bushing
15.
Setting piston position sensor
16.
End cover position sensor
(min displ. limit)
E.
Restrictor location, servo supply
10
9
1
2
3
4
5
6
7
8
E
11
12
13
14
16
15
*
Yellow seal cap is factory mounted. Red seal
cap is available as spare part, part no. 3797065.
Module cross section
(EP shown)
1*. Two-part seal
2.
Control module housing
3.
Treshold adjustment screw
4.
Feedback arm (EP, HP only)
5.
Treshold spring
6.
Modulating spring (EP, HP only)
7.
Servo valve spool
8.
Solenoid (EO, EP only); cover on HO, HP
9.
End cover (max displ. limit)
10. Max displ. limiting screw/bushing
11. Setting piston
12. Connecting arm
13. Set screws
14. Min displ. limiting screw/bushing
15. Setting piston position sensor
16. End cover position sensor(min displ. limit)
E.
Restrictor location, servo supply
*Yellow seal cap is factory mounted. Red sealcap is av-
ailable as spare part, part no. 3797065.
Controls and gauge ports
