Maintenance - Linde HiQ REDLINE Instructions Manual

ENGLISH
10. Maintenance and breakdowns

10.1 Maintenance

The pressure control device should be examined regularly to make sure it is working correctly and to check for leaks.
When carrying out maintenance and service work, inform the operating personnel and the users before starting
work. For all service and maintenance work take the power off all associated operating equipment and secure
the main switch against unexpectedly being turned back on. Check fittings which have come undone for correct
positioning. After completing maintenance work, make sure that the safety installations are functional again.
DANGER! For safety reasons, repairs and maintenance work only to be carried out by Linde service companies.
10.2 Malfunctions
By experience these regulators have a high level of reliability. Should any of the following breakdowns occur despite
this, exchange the regulator and have the defective equipment repaired:
Gas release at the outlet of the regulator when the hand-wheel is completely closed. Display of increasing pressure on
the outlet pressure gauge when the valve is closed or no gas is flowing. Gas release at the regulator cover. Gas release
at a gasket. Too high pressure drop with normal flow. Gas release at the pressure relief valve. Gas release at the
pressure gauge. Pointer of a pressure gauge does not return to "0". Faulty pressure display.
11. Return of equipment under pressure
DANGER! Pressurized equipment can only be returned which are completely free of fluids and have been purged.
The packaging must be sealed gas-tight.
DANGER! Pay attention to local rules and legislation with regards to transport and storage of hazardous goods and
materials.
12. Manufacture
The right to technical changes which are progressive is reserved. The manufacturer has all rights.
Edition SPG-614/V2/09.2002. Printed in Germany.
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