Lubricating oil
Cod. 16340
M2
M1
Fig. 2L
CLEANING AT THE END OF THE
WORK
ROUTINE MAINTENANCE
•
In case of long inactivity during the use with the plant
(for example, all night long at the end of the working
day), ensure the product you are using can be left
inside the pump and the different pipes without drying.
In this case, it is enough to stop the air supply to the pump and
drain the residual pressure in the circuit acting on the delivery
valve or on the pump bleeder valve.
If a long period of inactivity is expected, it is advisable to suck
and leave light mineral oil inside the pumping unit according to
the following procedure:
•
Stop the air supply to the pump.
•
Dip the material pumping hose into the washing solvent tank
(check its chemical compatibility with the product being used).
•
Make compressed air flow into the pump. It is advisable to adjust
the air pressure to minimum necessary to its continuous working.
•
Point the spray gun or the delivery valve at a container and drain
all the product left inside the pump till a clean solvent comes out.
•
Now, stop the air supply to the pump and drain the residual
pressure.
•
In case of long downtime, we suggest to duly suck and leave
light mineral oil inside the pumping unit.
Store possible dangerous fluids in proper
containers. Their disposal must be performed in
accordance with the regulations in force about
the industrial waste goods.
Always close the compressed air supply and
release the pressure in the plant before performing
any check or maintenance of the pump.
Fig. 1M
IT
EN
•
Check periodically (and each time the pump is operated after
a long storage) the packing nut (
M2
) is not loosened, causing
otherwise the coming out of the product. To tighten the packing
nut, lift the wet cup (
M1
).
•
The packing nut (
M2
) must be tightened so as to avoid wastes of
product, but not excessively to provoke pumping piston seizure
and seals wear. In case of persistent coming out of product,
replace the seals.
•
To prevent the product from drying up on the piston rod, refill
the cup (
M1
) with lubricant (compatible with the product used).
•
Check periodically the air supply to the pump. Ensure the air is
always clean and lubricated. In case of installation of a lubricator
on the air supply to the pump, it is advisable to keep its cup full
of a mixture of water and antifreeze liquid (dilution ratio 4:1).
ED.
01 - 03/2022 - Cod. 150204
www.larius.com
45
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