HY30-8223-INST
3
Parker Hannifin
Pump & Motor Division Europe
Trollhättan, Sweden
Hydraulic Motors
Series V12, V14 and T12
Installation and start-up information
Filtration
Maximum motor sevice life is obtained when the fluid clean lineness meets or exceeds ISO
code 20/18/13 (ISO 4406).
A 10 µm (absolute) filter is recommended.
Case pressure
To secure correct case pressure and lubrication, a spring loaded check valve, 1-3
bar, in the drain line (shown on next page) is recommended.
NOTE:
Contact Parker Hannifin for information when operating at high speeds.
Min and max case pressure [bar] vs. shaft speed [rpm].
Frame size 1500
3000
4000
5000
6000
V12-60
max 12
0.5–7
1–5.5
1.5–5
2–5
V12-80
max 12
0.5–7
1–5.5
1.5–5
2.5–5
V14-110
max 10
1–6
1.5–5
2–4.5
3–5
V14-160
max 10
1–6
2–5.5
2.5–5.5 -
Required inlet pressure
The motor may operate as a pump under certain conditions. When this occurs, a minimum
pressure must be maintained at the inlet port; increased noise and gradually deteriorating
performance due to cavitation may otherwise be experienced.
A 15 bar inlet pressure, measured at the motor inlet port, satisfies most operating condi-
tions.
Contact Parker Hannifin for more specific information on inlet pressure requirements.
Operating temperatures
The following temperatures should not be exceeded
Main circuit:
80 °C.
Drain fluid:
115 °C.
Continuous operation at high power levels usually requires case flushing in order for the
fluid to stay above the minimum viscosity requirement. A flushing valve and restricting noz-
zle, available as an option, provide the necessary main circuit flushing flow.
Refer to fig. 1 (page 5), and to:
