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Maintenance and repair
Bosch Rexroth AG, Accumulator shut-off block type ABZSS, 0532VAW, RE 50129-B/02.19
10 Maintenance and repair
Bursting of the accumulator shut-off block, danger of ejection of components or
protective plugs and danger of leakage of oil jets due to inadmissible operating
pressures!
Danger to life! Risk of injury! Damage to property!
▶
Before re-commissioning, ensure that the maximum admissible pressure of the
hydraulic components in the machine/system is not exceeded.
▶
Prior to re-commissioning, make sure that the operating pressure at line
connections at inlets and outlets of the accumulator shut-off block does not
fall below the operating pressure of the type-examination tested pressure relief
valve.
▶
Carry out a pressure test according to ISO 4413.
▶
Open the manual pressure relief prior to any maintenance and servicing.
Excessive pressure adjustment of the type-examination tested pressure relief
valve!
Danger to life! Danger of bursting! Damage to property!
▶
Make sure that the pressure adjustment of the type-examination tested pressure
relief valve does not exceed the maximum operating pressure of the hydraulic
accumulator.
▶
Compare the technical specifications of the hydraulic accumulator and the
accumulator shut-off block.
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For replacement, only use pressure relief valves up to the maximum operating
pressure.
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On replacement of the pressure relief valve, make sure that the tightening
torques for pressure ratings and sizes specified in the data sheet of the
respective accumulator shut-off block are complied with.
System pressure increase due to increasing flow!
Danger to life! Danger of bursting! Damage to property!
▶
Make sure that the system pressure increase due to the flow does not exceed
10% of the set response pressure. Refer to directive 2014/68/EU, annex 1,
2.11.2.
▶
Make sure that the discharge line (port T) of the accumulator shut-off block is
led out without any risk and that no fluid collects in the discharge system. Refer
to AD2000 data sheet A2.
▶
Make sure that the discharge line (port T) is sufficiently dimensioned for the
maximum admissible flow dependent on the counter pressure in the discharge
line according to the technical data specified in data sheet 50131, accumulator
shut-off block type ABZSS, and 50128, accumulator shut-off block type
0532VAW, see chapter 1.2 "Required and amending documentation".
WARNING
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