9.10.2 Checking the blow-off pressure
BAUER KOMPRESSOREN recommends that the intermediate pressure safety
valves be replaced very carefully. A the blow-off pressure can be tested only with
considerable expenditure.
1.
The final pressure switch is bypassed.
Set the unit to the final pressure when the drain cock or filling valve is closed.
Ä
The final pressure safety valve blows off.
2.
Compare the blow-off pressure of the final pressure safety valve with the final
pressure display.
9.11 Maintenance activities for pressure gauges
Pressure gauges must be checked in accordance with the maintenance schedule.
Using a special testing manometer is recommended for checking the pressure
gauges, see BAUER KOMPRESSOREN catalogue of high-pressure accessories.
Allowances should be made for minor deviations during operation. If the pressure
gauge shows large inaccuracies, however, it will need to be replaced.
A testing manometer is available.
1.
Connect the testing manometer parallel to the pressure gauge to be checked.
2.
Compare the display of the pressure gauge under operating conditions.
3.
If the pressure gauge shows large inaccuracies, however, it will need to be re-
placed.
OPERATING MANUAL
Maintenance | 9
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