EATON Vickers
®
Vane Pumps V Series - Low Noise Vane Pumps 560 November 201110
Operating Data
Sound Levels
Average sound levels are at
138 bar (2000 psi) using SAE
10W (26 cSt) – (128 SUS) oil
at 50°C (120°F).
- dB(A) -
1200 1500 1800
Model rpm rpm rpm
20V 62 64 66
25V 63 65 67
35V 64 66 69
45V 67 69 71
Sound levels for double
pumps are on the average 1
to 3 dB(A) higher when both
pumping sections are pres-
surized.
Sound levels are per NFPA
T3.970.12 test standards.
Hydraulic Fluids
Use antiwear industrial
hydraulic oils or automotive
crankcase oils having letter
designations SC, SD, SE or
SF with viscosity grades of
32 to 68 cSt at 40° C (140°
F). Preferred viscosity at
rated speed and pressures:
Minimum 13 cSt (70 SUS)
Maximum 54 cSt (251 SUS)
Minimum 49°C (120°F)
Maximum 65°C (150°F)
Cold Starts
When operating with SAE
10W oil in the 860 to 54 cSt
(4000 to 251 SUS) range, the
speed and pressure should
be limited to 50% or less of
their respective rated values
until the system has warmed
up. Extreme caution must
be used when starting units
when fluid viscosities are
greater than 860 cSt (4000
SUS). Care should be exer-
cised to warm up the entire
system, including remote
cylinders and motors.
High Temperature
Viscosities must not be less
than the respective minimum
values listed for each series
of pumps. Temperatures
should not exceed 99° C
(210° F) because the life ex-
pectancy of cartridge kits and
elastomers will decrease.
Water-in-oil Emulsions
Water-in-oil emulsions may
be used. However, they
require careful selection and
monitoring of the fluid. For
assistance contact your Vick-
ers representative. Soluble
oil-in-water solutions are not
recommended.
Synthetic Fire Resistant Fluids
Phosphate esters and their
blends with operating viscos-
ity of the petroleum oil de-
scribed above may be used.
These fluids are generally
compatible with fluorocarbon
and silicone elastomers. Add
F3 prefix to the model code
for special seals.
For operating conditions
exceeding recommendations
listed in this section, consult
your Vickers representative.
For details, refer to Vickers
data sheet I-286-S, M-2950-S
or GB-B-920, “Hydraulic Fluid
and Temperature Recom-
mendations.”
Filtration Requirements
For satisfactory service life of
components, use full flow fil-
tration to provide fluid cleanli-
ness conforming to ISO code
(see next page). Vickers OFP,
OFR and OFRS series filters
are recommended. Contact
your Vickers representative
for further filtration advice.
Drive Data
Pumps are assembled for
CW or CCW rotation. Right
hand or clockwise rotation
and left hand or counterclock-
wise rotation is viewed from
the shaft end.
Inlet and outlet ports remain
the same regardless of the
direction of shaft rotation.
Assembly change of internal
parts is necessary, when
change of shaft rotation is
required.
Pump Drive
Direct coaxial drive is recom-
mended. If drives imposing
radial shaft loads are con-
sidered, please consult your
Vickers representative.
Air Bleed
At the time of first-starting,
if the pump does not im-
mediately prime, air should
be bled from the pump
delivery line. This may be
accomplished by loosening
a connection in the deliv-
ery line close to the pump
until oil flows – indicating
the pump has primed. An air
bleed valve is available for
this purpose.
CAUTION: – No Case Drain The
pump is drained internally into its
inlet. System pressure at the pump
inlet connection may not exceed 1,4
bar (20 psi).
CAUTION: – Low Outlet Pressure Do
not run a pump with the outlet pres-
sure lower than the inlet pressure.
This causes operating noise and
vane instability.
Start-up Procedure
Make sure the reservoir and
circuit are clean and free of
dirt/debris prior to filling with
hydraulic fluid.
Fill the reservoir with filtered
oil and fill to a level sufficient
enough to prevent vortex-
ing at suction connection to
pump inlet. It is good practice
to clean up the system by
flushing and filtering using an
external slave pump.
Before starting the pump,
fill with fluid through one
of the ports. This is particu-
larly important if the pump is
above the fluid level of the
reservoir.
When initially starting the
pump, remove all trapped air
from the system. This can be
accomplished by loosening
the pump outlet fittings or
connections before starting
the pump or by using an air
bleed valve. All inlet con-
nections must be tight to
prevent air leaks.
Once the pump is started it
should prime within a few
seconds. If the pump does
not prime, check to make
sure that there are no restric-
tions between the reservoir
and the inlet to the pump,
and that there are no air leaks
in the inlet line and connec-
tions. Also check to make
sure that trapped air can
escape at the pump outlet.
After the pump is primed,
tighten the loose outlet con-
nections, then operate for
five to ten minutes unloaded
to remove all trapped air from
the circuit.
If reservoir has a sight gage,
make sure the fluid is clear –
not milky.
Add fluid to the reservoir to
bring it up to the proper fill
level.