The following precautions should be observed when using accumulators:

1. As an emergency power source, accumulators must be regularly inspected and maintained to ensure they are in good condition and safe to use.

2. Regular airtightness tests must be conducted on the airbags. Generally, for newly installed accumulators, the first test should be conducted within the first week, another test within the first month, and subsequent tests annually.

3. When the charging pressure of the accumulator falls below the specified value, it must be recharged promptly to ensure it remains in optimal operating condition at all times.

4. When the accumulator fails to function, first check the airtightness of the air valve. If there is air leakage, it should be replenished. If the air valve is leaking oil, inspect the airbag for damage. If oil is leaking, replace the relevant components.

5. Before inflating the airbag-type accumulator, inject a small amount of hydraulic oil through the oil port to lubricate the airbag.

How to charge the accumulator:

The accumulator must be charged using a charging tool. When charging, slowly turn the charging switch; once charging is complete, immediately close the switch, then open the exhaust valve to release any residual gas from the gas line. During the charging process, pay attention to the shut-off valve and pressure reducer between the charging tool and the nitrogen cylinder: before charging, first open the shut-off valve, then slowly open the pressure reducer, and charge slowly to avoid damaging the capsule. Once the pressure gauge needle indicates the charging pressure has been reached, close the shut-off valve, then close the charging valve, and the charging process is complete.

Note: After the accumulator is installed, it must be filled with nitrogen. It is strictly prohibited to fill it with oxygen, hydrogen, compressed air, or other flammable gases.

The charging pressure of the accumulator is as follows:

1. When a accumulator is used to dampen shocks, the charging pressure is typically set to the working pressure at the installation location or slightly higher.

2. When a accumulator is used to absorb pressure pulsations from a hydraulic pump, the charging pressure is generally set to 60% of the average pulsation pressure.

3. When a accumulator is used for energy storage, the pressure at the end of charging must not exceed 85% of the minimum working pressure of the hydraulic system, but must not be less than 30% of the maximum working pressure.

4. When a accumulator is used to compensate for pressure changes caused by temperature-induced deformation in a closed-loop system, the charging pressure should be equal to or slightly lower than the minimum pressure of the loop.