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12. Cleaning
The pump must be cleaned with the appropriate solvent, in order to remove any remaining
product after each use. The useful service life of the unit largely depends on the effectiveness
of this cleaning process.
The unit must be cleaned:
- Before using it for the first time, in order to eliminate the traces of
maintenance oil that the equipment comes with from the factory.
- After each use.
- When proceeding to apply a different product (different colour or
characteristics) to what we are currently using.
Before proceeding to clean the pneumatic pump you must have followed each and every one of
the steps described in the section Stopping when work is finished (Section 10.2).
This implies that the unit and its accessories must be depressurised and without any product
inside.
Always use an appropriate thinner when cleaning the unit. Always use water for waterborne
products, for other products always use whatever is recommended by the manufacturer of the
product to be applied.
1.- Place a correctly grounded metal container with the right cleaning solvent in the product
suction pipe.
2.- Place the product outlet pipe in the same container which contains the cleaning solvent. Hold
this firmly. Submerge the outlet end of the pipe in the cleaning
solvent in order to avoid splashing.
3.- Open air inlet stop cock to the pump.
4.- Operate the air inlet regulator to the pump until the unit comes into operation.
5.- Recycle for a time until cleaning is complete.
It is considered that the unit and its accessories are completely clean when the product
sprayed from the gun, or that flows out of the product outlet, is clean solvent and is free of the
applied product, for which it must be renewed as many times as necessary.
Once the unit and its accessories are clean, and as a prior step before definitively stopping
it, the Depressurisation procedure described before in Section 10.1 of the Manual must be
applied.
EN
32
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