Schwing SP 1800-D, Оригинальная инструкция по эксплуатации

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3.40-7
001.177.19-EN
2.4 FORCE OUT (BLOW OUT) PUMPING LINE
WITH COMPRESSED AIR
WARNING
The following points must be observed when
blowing out the pipeline with compressed air.
1. The blowing out must be carried out
under expert guidance.
2. Elbows or hoses may not be mounted
at the end of the pipeline.
3. No-one may remain in the area of the
concrete output.
4. Empty and rinse tapered tubes
manually. Only blow out pumping lines
of the same nominal size.
5. A trap basket must be connected to the
concrete output (Fig.: 14).
6. Set the concrete output high so that the
concrete can escape freely.
7. The cleaning head must be equipped
with a functioning pressure gauge 2 and
a large-dimensioned blow valve 3
(Fig.: 15).
8. The length of the plug must be such
that it seals the pipeline hermetically on
the trap basket upon completion of the
blowing out.
9. The plug must be sealed in order to
prevent the compressed air from
penetrating past it into the concrete.
10. Only work on unpressurised pipelines.
Open blow valve 3 (Fig.: 15) . Concrete
emerging under pressure can injure
persons.
11. Individual tubes and short 10 m-long
tube strings may not be blown out. High
risk of accident caused by recoil due to
low mass!
In addition to the made paper plug, as referred
to above, a hard sponge rubber ball is used for
blowing out.
Fig.: 14
Fig.: 15