108
4
OPERATION AND USE
id.:
DB 460 REV. 00 02/01/2015
4.10.10. BUCKET, DRUM AND CHUTE WASHING
(fi g. 44)
CAUTION: The washing operations can be carried out both with the nozzle provided (pressure of 4.5
bar) and with an optional nozzle operating at a pressure of around 150 bar.
- Set the drum to rotate clockwise like for mixing.
- Fill the drum with water and gravel following the procedures as described above (chapter 4.10.5) in a
quantity suffi cient to dilute and detach the concrete residues.
- Connect the washing nozzle
G
to the pump delivery.
Set the switching valve
B
to position “
2
”
- Externally wash the bucket, drum and chute as well as all the parts normally soiled with concrete.
- Raise the drum.
- Change drum rotation from clockwise to anticlockwise.
- Drain out all the water in the drum and wash the chute and the extensions.
- Remove the extensions.
- Lower the bucket and wash it inside and out.
44
G
B
2
Содержание DB 460
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