L2
L1
ED.
03 - 10/2020 - Cod. 150087
www.larius.com
9
nova 20:1 ext
CLEANING AT THE END OF
THE WORK
ROUTINE MAINTENANCE
• Check periodically
(and each time the pump is operated after
a long storage)
the packing nut (
L2
) is not loosened, causing
otherwise the coming out of the product. To tighten the packing
nut, lift the wet cup (
L1
)
.
The packing nut (
L2
) 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 (
L1
) 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)
.
By cleaning at the end of the work we mean the cleaning to carry
out in case of use with a different product or if a long period of
downtime is foreseen.
• 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.
K
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.
L
Lubricating oil
Cod. 16340
Conservare eventuali fluidi pericolosi in con-
tenitori appropriati. Essi vanno eliminati in os-
servanza alle leggi relative allo smaltimento dei
rifiuti industriali.
Chiudere sempre la fornitura di aria compressa
e scaricare la pressione nell’impianto prima di
effettuare qualsiasi tipo di controllo o di manu-
tenzione sulla pompa.
Fig. 1L
Fig. 2L