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Maintenance and repair
Bosch Rexroth AG, Type HAD...-1X/ and HAD...-2X/, RE 50150-B/10.20
10.1.2
Test intervals of the diaphragm type accumulator
Table 6: Test intervals of the diaphragm type accumulator
Test
Interval
Inspection of the
Test 1:
pre-filling pressure
Within one week as of
and external visual
commissioning
inspection
Test 2:
Within 3 months after
commissioning, if no gas
losses during test 1
Test 3:
Annual test, if no gas losses
during test 2
Internal visual
Every 10 years
inspection according to
national provisions
10.1.3
Maintenance schedule of the system
For a safe operation and a long service life of the diaphragm type accumulator,
a maintenance schedule is to be drawn up for the power unit, the machine, or the
system. The maintenance schedule must guarantee that the operating conditions
of the diaphragm type accumulator stay in the prescribed limits during the entire
period of use.
In particular, compliance with the following operating parameters has to be ensured:
• Operating pressure
• Operating temperature range
• Surface temperature
• Leak-tightness
Changes made to these parameters increase the wear of the diaphragm type
accumulator. The cause must be identified and remedied immediately.
In order to achieve high operational safety of the diaphragm type accumulator in the
machine/system, Bosch Rexroth recommends checking the parameters mentioned
above continuously and automatically and shutting the system off automatically
in case of modifications which exceed the usual fluctuations in the intended
operating range.
Further information on the maintenance is provided in the operating instructions
of the overall system.
10.2 Repair
The diaphragm type accumulator is not repairable. In case of damage, an adequate
replacement is to be provided.
If you have any questions regarding spare parts and repair, please contact your local
Bosch Rexroth service or the service department of the diaphragm type accumulator
manufacturer's factory:
Maintenance activities
Inspection of the pre-filling pressure
Inspection of leak-tightness,
connection thread;
Visual inspection of corrosion
protection.
An internal visual inspection is
not possible due to the design.
The accumulator is to be replaced.
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