ARI Armaturen ARI REYCO RL969 EN - Manual (Page 12)

Page 2-12 Rev. 0040404000 4113
Operating and installation instructions
ARI-REYCO R / RL Series
7.0 Care and maintenance
Maintenance and maintenance-intervals have to be defined by the operator according to
the requirements.
- Lift the safety valve stem briefly (releasing the lever suddenly) to eliminate slight leaks due
to particles between the seat and disc.
- If this does not eliminate the leak, the sealing surfaces of the seat and/or disc have been
damaged.
This can only be rectified at our works or by an authorised contractor.
- With valves corresponding to Figures 971, the lever must always be returned to the
original position after lifting the safety valve.
- The manufacturer accepts guarantee liabilities only if tampering by third parties is
prevented.
7.1 Setting instructions
8.0 Troubleshooting
In the event of malfunction or faulty operating performance check that the installation and
adjustment work has been carried out and completed in accordance with these Operating
Instructions.
If malfunctions cannot be eliminate with the help of the following table
“9.0 troubleshooting table”, the supplier or manufacturer should be consulted.
ATTENTION !
- Too frequent lifting for test purposes can increase wear of the sealing surfaces!
- The safety valve must be lifted from time to time in line with current regulations
(by   75% from the set pressure) to ensure that the valve works correctly.
(The intervals at which this must be done depends on various factors so that no
generally applicable interval can be specified)
- Original parts only should be fitted as spares as a matter of policy.
- In safety valves with an open spring bonnet there is a danger of being crushed
between the spring windings during lifting and setting.
ATTENTION !
A change of the settings must only be carried out by authorised specialist
workshops or at the operator’s own responsibility with monitoring by an
independent agency (e.g. USA-VR-Stamp) according to the maintenance
manual. (Please contact manufacturer.)
-
ATTENTION !
It is essential that the safety regulations are observed when identifying faults.