Parker OLAER IBV Series Setup guide

©Parker Hannifin GmbH Pat-Parker-Platz 1 41564 Kaarst
Tel.: [phone] Fax: [phone] E-Mail: park[email protected] Web: www.olaer.de
Stand 06/14
doc 6.140
Page 1 von 2
Bladder accumulator series IBV / EBV
Repair instructions
Dismantling the accumulator
Disconnect and close the accumulator
inlet and discharge the hydraulic fluid
from the accumulator.
Remove the accumulator from its
mounting and lay it horizontally in a
vice or other fixation system. Take care
not to damage the accumulator.
Unscrew the protective cap(s). If
necessary remove the lead seal from
the protective cap(s).
Deflate the bladder using Parker Olaer
tester and pressurize instrument
(Fig. 1) .
Operate the tester and pressurize
instrument as described in its manual.
Unscrew the gas inlet valve (Fig. 2).
Release the gas inlet valve sub-
assembly nut and remove the name
plate
(Fig. 3) .
Unscrew the flange or reduction from
the hydraulic fluid end. Dismantle the
venting screw (not used with every
model). Take care on the seal.
With the accumulator completely free
of pressure (gas and fluid), a loose fit
of the grid has to be detected
If this is not the case all further work
has to be stopped! Please contact
Parker Olaer
(Fig. 4).
Remove the spring ring (Fig. 5).
Remove the grid (Fig. 6).
Remove the bladder through the fluid
end opening
(Fig. 7).
Fig. 1 Fig. 2
Fig. 3 Fig. 4
Fig. 5 Fig. 6
Fig. 7
Cleaning, inspection and repairs
Carefully clean all metallic parts of the
accumulator and dry with compressed air.
Inspect the vessel from any internal damage.
Check that the bladder has no sign of wear of
ma
j
or frictional wear or other dama
g
e.
Under no circumstances attempt to repair the
bladder.
Replace all worm or damaged parts.

©Parker Hannifin GmbH Pat-Parker-Platz 1 41564 Kaarst
Tel.: [phone] Fax: [phone] E-Mail: park[email protected] Web: www.olaer.de
Stand 06/14
doc 6.140
Page 2 von 2
Assembly
Ensure that no foreign bodies are in the
accumulator.
To facilitate the reassembling of
bladder, smear it and vessel interior
with the system hydraulic fluid.
Press the upper part of the bladder
together and feed in though the
hydraulic end opening
(Fig. 7) .
Lightly screw the name plate and gas
inlet valve sub-assembly nut on
(Fig. 8).
Check that the bladder is either folded
or twisted.
Insert the grid into the accumulator
shell until it reaches its stop
(Fig. 9).
Reinstall the spring ring (Fig. 10).
Before mounting the reduction on the
hydraulic end, inflate the bladder slowly
with nitrogen to a pressure of 1 - 1,5
bar with the tester and pressurizer
instrument. Operate the tester and
pressurizer instrument as described in
its manual
(Fig. 11).
Mount the venting screw (not used with
every model) and gasket.
Tighten the name plate and gas inlet
valve sub-assembly nut fully
(Fig. 12).
Inflate the accumulator to the
precharge pressure required by the
system.
Fig. 8 Fig. 9
Fig. 10
Fig. 12
Fig. 11
First operation
Please note doc 6.120!
Before pressurizing the system, vent via the venting
screw if used. Retighten the screw carefully as soon
as the hydraulic fluid has left the vessel finally.
No welding/soldering or mechanical operations of
any kind must be undertaken on the accumulator!
Hydropneumatic accumulators are subject to official
pressure vessel regulations. These regulations
demands that the accumulator must be inspected
on a regular basis. The interval between inspections
varies from state to state.
Request the appertaining intervals for your
operation from the authorities responsible.