Service/Spare Parts Manual
Series V12
MSG30-5506-M1/UK
29
Parker Hannifin
Pump & Motor Division Europe
Trollhättan, Sweden
Parker Hannifin
Pump & Motor Division Europe
Trollhättan, Sweden
Gauge/Pilot ports (AC and AH control)
X1
Setting piston pressure (max-to-min, EO)
X1
Setting piston pressure (decreasing displ. EP)
X2
Servo supply pressure (after orifice)
X4
Servo supply pressure (before orifice)
X6
Setting piston pressure (min-to-max, EO)
X6
Setting piston pressure (increasing displ. EP)
Gauge/Pilot ports (EO and EP control)
Ports are:
- M14x1.5 (ISO and cartridge versions)
- 9/16”-18 O-ring boss (SAE version)
25
Pump and Motor Division
Trollhättan, Sweden
Service Manual
Series V12
HY30-5506-M1/UK
Gauge/Pilot ports (AC and AH control)
X1
Setting piston pressure (increasing displ.)
X2
Servo supply pressure (after
X4
Servo supply pressure (before
X5
External pilot pressure
X6
Setting piston pressure (decreasing displ.)
X7
Override pressure (only AH control)
Ports are:
-
M14x1.5
(ISO and cartridge versions)
-
9
/
16
"-18 O-ring boss (SAE version)
Max
Min
X4
X2
A
X4
X2
A
X6
X1
B
X6
X5
X1
B
Max
Min
Max
Min
Optional
modulating
pressure
Displacement
(setting piston position)
Override
engaged
Min threshold
pressure
Max
threshold
pressure
System
pressure
Ps
Δp
Threshold
pressure
Modul.
pressure
ACI 01 I schematic (spool in a balanced, mid-pos.)
ACE 01 I schematic (spool in a balanced, mid-pos.)
Max
Min
X4
X7
X2
A
X6
X1
B
Max
Min
X4
X7
X5
X2
A
X6
X1
B
Max
Min
Displacement
(setting piston position)
Override
engaged
Min threshold
pressure
Optional
modulating
pressure
Max
threshold
pressure
System
pressure
Ps
Δp
Threshold
pressure
Modul.
pressure
AHI 01 I schematic (spool in a balanced, mid-pos.)
AHE 01 I schematic (spool in a balanced, mid-pos.)
26
Pump and Motor Division
Trollhättan, Sweden
Service Manual
Series V12
HY30-5506-M1/UK
Gauge/Pilot ports (EO and EP control)
X1
Setting piston pressure (max-to-min, EO)
X1
Setting piston pressure (decreasing displ. EP)
X2
Servo supply pressure (after
X4
Servo supply pressure (before
X6
Setting piston pressure (min-to-max, EO)
X6
Setting piston pressure (increasing displ. EP)
Ports are:
-
M14x1.5
(ISO and cartridge versions)
-
9
/
16
"-18 O-ring boss (SAE version)
Max
Min
X4
X2
A
X6
X1
B
Max
Min
X4
X2
A
X6
X1
B
Max
Min
X4
X2
A
X6
X1
B
Max
Min
X4
X2
A
X6
X1
B
Max
Min
Max
Min
Displacement
(setting piston position)
Displacement
(setting piston position)
Solenoid
current
Threshold
current
Is
EOH 01 I schematic (non-activated solenoid)
EOH
01 E
schematic
(non-activated
solenoid)
Min threshold
current
Max threshold
current
Solenoid
current
ΔI
Is
Threshold
current
Modulating
current
EPH 01 E schematic (spool in balanced, mid-pos.)
EPH 01 I schematic (spool in balanced, mid-pos.)
26
Pump and Motor Division
Trollhättan, Sweden
Service Manual
Series V12
HY30-5506-M1/UK
Gauge/Pilot ports (EO and EP control)
X1
Setting piston pressure (max-to-min, EO)
X1
Setting piston pressure (decreasing displ. EP)
X2
Servo supply pressure (after
X4
Servo supply pressure (before
X6
Setting piston pressure (min-to-max, EO)
X6
Setting piston pressure (increasing displ. EP)
Ports are:
-
M14x1.5
(ISO and cartridge versions)
-
9
/
16
"-18 O-ring boss (SAE version)
Max
Min
X4
X2
A
X6
X1
B
Max
Min
X4
X2
A
X6
X1
B
Max
Min
X4
X2
A
X6
X1
B
Max
Min
X4
X2
A
X6
X1
B
Max
Min
Max
Min
Displacement
(setting piston position)
Displacement
(setting piston position)
Solenoid
current
Threshold
current
Is
EOH 01 I schematic (non-activated solenoid)
EOH
01 E
schematic
(non-activated
solenoid)
Min threshold
current
Max threshold
current
Solenoid
current
ΔI
Is
Threshold
current
Modulating
current
EPH 01 E schematic (spool in balanced, mid-pos.)
EPH 01 I schematic (spool in balanced, mid-pos.)
26
Pump and Motor Division
Trollhättan, Sweden
Service Manual
Series V12
HY30-5506-M1/UK
Gauge/Pilot ports (EO and EP control)
X1
Setting piston pressure (max-to-min, EO)
X1
Setting piston pressure (decreasing displ. EP)
X2
Servo supply pressure (after
X4
Servo supply pressure (before
X6
Setting piston pressure (min-to-max, EO)
X6
Setting piston pressure (increasing displ. EP)
Ports are:
-
M14x1.5
(ISO and cartridge versions)
-
9
/
16
"-18 O-ring boss (SAE version)
Max
Min
X4
X2
A
X6
X1
B
Max
Min
X4
X2
A
X6
X1
B
Max
Min
X4
X2
A
X6
X1
B
Max
Min
X4
X2
A
X6
X1
B
Max
Min
Max
Min
Displacement
(setting piston position)
Displacement
(setting piston position)
Solenoid
current
Threshold
current
Is
EOH 01 I schematic (non-activated solenoid)
EOH
01 E
schematic
(non-activated
solenoid)
Min threshold
current
Max threshold
current
Solenoid
current
ΔI
Is
Threshold
current
Modulating
current
EPH 01 E schematic (spool in balanced, mid-pos.)
EPH 01 I schematic (spool in balanced, mid-pos.)
25
Pump and Motor Division
Trollhättan, Sweden
Service Manual
Series V12
HY30-5506-M1/UK
Gauge/Pilot ports (AC and AH control)
X1
Setting piston pressure (increasing displ.)
X2
Servo supply pressure (after
X4
Servo supply pressure (before
X5
External pilot pressure
X6
Setting piston pressure (decreasing displ.)
X7
Override pressure (only AH control)
Ports are:
-
M14x1.5
(ISO and cartridge versions)
-
9
/
16
"-18 O-ring boss (SAE version)
Max
Min
X4
X2
A
X4
X2
A
X6
X1
B
X6
X5
X1
B
Max
Min
Max
Min
Optional
modulating
pressure
Displacement
(setting piston position)
Override
engaged
Min threshold
pressure
Max
threshold
pressure
System
pressure
Ps
Δp
Threshold
pressure
Modul.
pressure
ACI 01 I schematic (spool in a balanced, mid-pos.)
ACE 01 I schematic (spool in a balanced, mid-pos.)
Max
Min
X4
X7
X2
A
X6
X1
B
Max
Min
X4
X7
X5
X2
A
X6
X1
B
Max
Min
Displacement
(setting piston position)
Override
engaged
Min threshold
pressure
Optional
modulating
pressure
Max
threshold
pressure
System
pressure
Ps
Δp
Threshold
pressure
Modul.
pressure
AHI 01 I schematic (spool in a balanced, mid-pos.)
AHE 01 I schematic (spool in a balanced, mid-pos.)
26
Pump and Motor Division
Trollhättan, Sweden
Service Manual
Series V12
HY30-5506-M1/UK
Gauge/Pilot ports (EO and EP control)
X1
Setting piston pressure (max-to-min, EO)
X1
Setting piston pressure (decreasing displ. EP)
X2
Servo supply pressure (after
X4
Servo supply pressure (before
X6
Setting piston pressure (min-to-max, EO)
X6
Setting piston pressure (increasing displ. EP)
Ports are:
-
M14x1.5
(ISO and cartridge versions)
-
9
/
16
"-18 O-ring boss (SAE version)
Max
Min
X4
X2
A
X6
X1
B
Max
Min
X4
X2
A
X6
X1
B
Max
Min
X4
X2
A
X6
X1
B
Max
Min
X4
X2
A
X6
X1
B
Max
Min
Max
Min
Displacement
(setting piston position)
Displacement
(setting piston position)
Solenoid
current
Threshold
current
Is
EOH 01 I schematic (non-activated solenoid)
EOH
01 E
schematic
(non-activated
solenoid)
Min threshold
current
Max threshold
current
Solenoid
current
ΔI
Is
Threshold
current
Modulating
current
EPH 01 E schematic (spool in balanced, mid-pos.)
EPH 01 I schematic (spool in balanced, mid-pos.)
26
Pump and Motor Division
Trollhättan, Sweden
Service Manual
Series V12
HY30-5506-M1/UK
Gauge/Pilot ports (EO and EP control)
X1
Setting piston pressure (max-to-min, EO)
X1
Setting piston pressure (decreasing displ. EP)
X2
Servo supply pressure (after
X4
Servo supply pressure (before
X6
Setting piston pressure (min-to-max, EO)
X6
Setting piston pressure (increasing displ. EP)
Ports are:
-
M14x1.5
(ISO and cartridge versions)
-
9
/
16
"-18 O-ring boss (SAE version)
Max
Min
X4
X2
A
X6
X1
B
Max
Min
X4
X2
A
X6
X1
B
Max
Min
X4
X2
A
X6
X1
B
Max
Min
X4
X2
A
X6
X1
B
Max
Min
Max
Min
Displacement
(setting piston position)
Displacement
(setting piston position)
Solenoid
current
Threshold
current
Is
EOH 01 I schematic (non-activated solenoid)
EOH
01 E
schematic
(non-activated
solenoid)
Min threshold
current
Max threshold
current
Solenoid
current
ΔI
Is
Threshold
current
Modulating
current
EPH 01 E schematic (spool in balanced, mid-pos.)
EPH 01 I schematic (spool in balanced, mid-pos.)
26
Pump and Motor Division
Trollhättan, Sweden
Service Manual
Series V12
HY30-5506-M1/UK
Gauge/Pilot ports (EO and EP control)
X1
Setting piston pressure (max-to-min, EO)
X1
Setting piston pressure (decreasing displ. EP)
X2
Servo supply pressure (after
X4
Servo supply pressure (before
X6
Setting piston pressure (min-to-max, EO)
X6
Setting piston pressure (increasing displ. EP)
Ports are:
-
M14x1.5
(ISO and cartridge versions)
-
9
/
16
"-18 O-ring boss (SAE version)
Max
Min
X4
X2
A
X6
X1
B
Max
Min
X4
X2
A
X6
X1
B
Max
Min
X4
X2
A
X6
X1
B
Max
Min
X4
X2
A
X6
X1
B
Max
Min
Max
Min
Displacement
(setting piston position)
Displacement
(setting piston position)
Solenoid
current
Threshold
current
Is
EOH 01 I schematic (non-activated solenoid)
EOH
01 E
schematic
(non-activated
solenoid)
Min threshold
current
Max threshold
current
Solenoid
current
ΔI
Is
Threshold
current
Modulating
current
EPH 01 E schematic (spool in balanced, mid-pos.)
EPH 01 I schematic (spool in balanced, mid-pos.)
26
Pump and Motor Division
Trollhättan, Sweden
Service Manual
Series V12
HY30-5506-M1/UK
Gauge/Pilot ports (EO and EP control)
X1
Setting piston pressure (max-to-min, EO)
X1
Setting piston pressure (decreasing displ. EP)
X2
Servo supply pressure (after
X4
Servo supply pressure (before
X6
Setting piston pressure (min-to-max, EO)
X6
Setting piston pressure (increasing displ. EP)
Ports are:
-
M14x1.5
(ISO and cartridge versions)
-
9
/
16
"-18 O-ring boss (SAE version)
Max
Min
X4
X2
A
X6
X1
B
Max
Min
X4
X2
A
X6
X1
B
Max
Min
X4
X2
A
X6
X1
B
Max
Min
X4
X2
A
X6
X1
B
Max
Min
Max
Min
Displacement
(setting piston position)
Displacement
(setting piston position)
Solenoid
current
Threshold
current
Is
EOH 01 I schematic (non-activated solenoid)
EOH
01 E
schematic
(non-activated
solenoid)
Min threshold
current
Max threshold
current
Solenoid
current
ΔI
Is
Threshold
current
Modulating
current
EPH 01 E schematic (spool in balanced, mid-pos.)
EPH 01 I schematic (spool in balanced, mid-pos.)
26
Pump and Motor Division
Trollhättan, Sweden
Service Manual
Series V12
HY30-5506-M1/UK
Gauge/Pilot ports (EO and EP control)
X1
Setting piston pressure (max-to-min, EO)
X1
Setting piston pressure (decreasing displ. EP)
X2
Servo supply pressure (after
X4
Servo supply pressure (before
X6
Setting piston pressure (min-to-max, EO)
X6
Setting piston pressure (increasing displ. EP)
Ports are:
-
M14x1.5
(ISO and cartridge versions)
-
9
/
16
"-18 O-ring boss (SAE version)
Max
Min
X4
X2
A
X6
X1
B
Max
Min
X4
X2
A
X6
X1
B
Max
Min
X4
X2
A
X6
X1
B
Max
Min
X4
X2
A
X6
X1
B
Max
Min
Max
Min
Displacement
(setting piston position)
Displacement
(setting piston position)
Solenoid
current
Threshold
current
Is
EOH 01 I schematic (non-activated solenoid)
EOH
01 E
schematic
(non-activated
solenoid)
Min threshold
current
Max threshold
current
Solenoid
current
ΔI
Is
Threshold
current
Modulating
current
EPH 01 E schematic (spool in balanced, mid-pos.)
EPH 01 I schematic (spool in balanced, mid-pos.)