Ecolab Hybrid Penta SUPD33 Mode D'emploi page 20

9.6. Replacing hose and service of checkvalve
20
When removing the hose it is important to hold contra
on the part closest to the block.
Use a 17mm key.
Hold contra on the inner part while using a 19 mm
key to loosen the hose.
If you are only exchanging the hose, please loosen
the opposite end of the hose and go to *.
Use a 15mm key to loosen the outher part of the non
return valve.
Check or exchange o-rings, piston etc.
Tighten the top using a 15mm key.
1
*
1. Identify the hose end with conical seat. Use it for
2. Use the hose end with flat seat for the supply.
2
When you find the right end:
Tighten up the hose with a 19-mm wrench.
the satellite valve.