Endress+Hauser 450-126.416, Руководство по эксплуатации, Страница: 30 / 43

Maintenance and care Automatic Boat Drive
30
7.7 Cleaning and replacing the hook at the ABD
CAUTION
Risk of burns
Risk of burns from the hot side panel and the combustion tube! Only perform the main-
tenance in the cooled-down state.
If a sampler has been fitted to the ABD, this can be removed prior to pulling
out the hook for easier handling (see user manual of the sampler).
If the hook is contaminated or needs replacing, proceed as follows:
} Disconnect the ABD from the basic module (→ "Disconnecting the ABD
from the combustion tube"
 27).
} Switch off the ABD at the mains switch at the rear side.
} Push the ABD to the side until you have enough space to remove the
hook. You can also lift the ABD from the guide.
} Note the length of the connection cables on the rear of the ABD (flame
sensor, sampler cable). These could easily tear off.
} Remove the protective cover from the guide tube.
}
Push the magnetic coupling with hook carefully up to the stop towards
the sample sluice (see arrow).
}
Carefully pull the hook first out of the magnetic coupling and then fully
out of the sample sluice of the ABD.
ü You can now clean or replace the hook.
}
Insert the cleaned hook or a new hook into the sample sluice of the ABD.
NOTICE! Wear gloves when doing so to prevent contaminating the
hook
.
} Carefully slide the hook through the sample sluice until the coupling
sleeve of the hook is pulled into the magnetic coupling. The hook must
point upward during insertion!
}
Slide the magnetic coupling to the right up to the stop at the block of the
gas supply until the hook has been pulled in completely into the guide
tube.
} Put the protective cover back onto the guide tube.
ü The hook is now installed.