Commissioning 67/132
RE 30201-B/07.2014, SYEPS series 1X,
Bosch Rexroth AG
7
8
9
7
Fig. 41: Gas-sided connection on the bladder-type (on the left-hand side) and diaphragm-type
accumulator (on the right-hand side)
7
Protective cap
8
Sealing cap
9
Gas charging screw
3.
Screw the charging and testing device for the pressure accumulator to the gas
connection of the accumulator observing the operating instructions for the
charging and testing device.
4.
Connect the precharge valve to the nitrogen bottle using the charging and
testing device.
5.
For the specified pre-charged pressure, see the hydraulic circuit diagram.
6.
Open the shut-off valve [
6
] of the gas bottle.
7.
Loosen the gas filling screw via the charging and testing valve until gas can flow
into the accumulator.
8.
Charge the accumulator until the specified precharge pressure is indicated on
the pressure gauge of the precharge valve. Continuously observe the pressure
gauge while charging the accumulator.
9.
Close the shut-off valve [
6
] of the gas bottle.
10.
The precharge pressure is temperature-related. During charging, the accumulator
warms up. Wait, until the accumulator has cooled down.
11.
Check the precharge pressure and, if required, correct it.
12.
Retighten the gas charging screw on the diaphragm-type accumulator to 25 Nm
via the charging and testing valve.
13.
Unload the charging device via the bleeder valve and then remove the charging
and testing valve.
14.
Screw the protective cap onto the accumulator.
15.
Mark the set precharge pressure clearly legibly on the accumulator.
The precharge pressure is now tested and set.
16.
Check the precharge pressure at least once in the first week after commissioning
and then proceed as described in Chapter 10.2.5 “Check of gas charge
pressure” on page 111.
▶
Connect a pressure gauge to test port MND1 for the low pressure accumulator
(diaphragm-type accumulator) and to test port MHD1 for the high pressure
accumulator (bladder-type accumulator) by means of a hose.
Measurement on the fluid
side
