GCE druva MM90 STANDBY Instrucciones De Uso página 8

8.2.2. HIGH SUPPLY PRESSURE
The signal is given by pressure switch no. 2 in outlet side of panel (see chapter Product descrip-
tion).
Check that the regulator outlet pressure is as preferred. If not, reset the regulator by turning
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regulator screw.
If you shortly after resetting the regulator have the same alarm condition again, the regulator
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most likely has internal leakage. Replace the regulator with a new or refurbished unit.
8.2.3. LOW SUPPLY PRESSURE
EN
The signal is given by pressure switch no. 3 in outlet side of panel (see chapter Product descrip-
tion).
Check that the regulator outlet pressure is as preferred. If not, reset the regulator by turning
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regulator screw.
9. ROUTINE MAINTENANCE INSTRUCTION
Service shall be carried out only by authorised person according to national standards.
Use only original components. Contact GCE for further information about repair procedures.
The following routine checks should be made on a weekly basis:
Check all valves for correct operation and leak test using a 0.5% teepol in water solution.
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Check pipework for leaks using a 0.5% teepol in water solution.
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Check that all notices are in place, can be easily read and are not obstructed from view.
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Inspect the vicinity of cylinders for anything introduced since last inspection, which could af-
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fect the continuing safe operation of the manifold.
General maintenance should be undertaken in accordance with a planned maintenance
schedule, which should include the following items:
Leak test all joints using a 0.5% teepol in water solution.
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Examine mounting frames and cylinder securing chains for damage deterioration and secu-
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rity of attachment.
Examine tailpipes/high pressure hoses for damage and security of attachment.
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High pressure hoses should receive particular attention to ensure they are secure, not worn
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or otherwise weakened.
Components with limited lifetimes, such as high pressure hoses, should be subjected to a
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rouine replacement programme.
Filters are in good condition and not blocked. Filter elements may need to be cleaned or
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renewed and pipelines may need to be blown through to remove foreign material.
Valves to be used in normal or emergency operation are accessible and easy to operate.
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Valves at service point's outlets and purge valves should be checked for gas tightness.
No item of equipment is overdue for any periodic inspection/test which may be applicable.
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The setting and operation of regulators is satisfactory.
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The necessary safety devices and instruments are fitted, are of the correct type and do not
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show signs of deterioration or unauthorised interference.
The equipment downstream of the outlet point is suitable for further service.
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Check connecting nuts and seating faces are undamaged.
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Check o-rings are undamaged.
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Check gauges operate smoothly and zero correctly.
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Check isolating valves for closure tightness and gland leakage.
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The gas manifold room must always remain thoroughly clean. Materials other than those
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required for operating the manifold must not be stored in the room.
Check that all ventilation grills are free from obstruction and that the extraction system (when
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installed) is functioning correctly.
Ensure that all restrictions on smoking and open fire are strictly enforced.
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