Prebena SK-15-10, Руководство пользователя

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PREBENA
Wilfried Bornemann GmbH & Co. KG
BEFESTIGUNGSTECHNIK
– FASTENING TECHNOLOGY
27
8.3.14 External inspection of the compressor
Check the electric cable, the safety valve, the pressure gauge, the pressure vessel
and the pressure switch for damage that could compromise the correct operation
daily and before each use . Ensure that there are no deformities or fractures and that
the earth wire is connected properly.
8.3.15 Checking the safety valve on the compressed air container (applies only to
models with a compressed air tank)
T
he safety valve is a valve spring (Figure 8) . It has been adjusted in the factory, set
to the correct opening pressure and sealed. Breaking the seal and changing the
setting is prohibited and is not possible without destroying the integrity of the valve
body. Interventions to the safety valve void the manufacturer's warranty.
A test of the safety valve can be performed during normal compressor operation. The
safety valve can be tested as soon as the pressure in the compressed air container is
≥ 85% of the opening pressure.
The valve can be inspected manually via the pull ring on the upper part of the safety
valve. The test proceeds as follows: Pull the ring up when the upper pressure level
has been reached in the pressure vessel. Continue pulling until the valve is half open
and discharges pressure, then let the ring go so that it can return to the home
position again. If the valve can no longer seal the valve seat, it is broken and must be
replaced.
1
2
1 - Valve body
2 - Ring
Figure 8