www.larius.com
16
GHIBLI 30:1/40:1
REV.
. 01 - 03/2020 - Cod. 150088
Always close the compressed air supply and release the pressure in the plant before performing any check or
replacement of parts of the pump.
Problem
Cause
Solution
The pump works, but the flow of
product is not sufficien
Suction valve worn or partially
clogged;
Disassemble the suction valve.
Clean and/or replace, if possible,
the parts worn;
Outlet product line clogged;
Clean. disconnect the outlet hose of the
product, feed the pump at the minimum
pressure and verity if delivery increases
without the outlet hose;
The feed air pressure is too low;
Increase air pressure;
Waste of product from the wet cup
Upper gaskets worn.
Tighten the packing nut. In case of
persistent waste of product, replace the
upper gaskets of the pumping element.
The equipment does not suck the
product
Suction filter clogged;
Clean or replace it;
Suction filter too fine;
Replace it with a larger-mesh filter (with
very dense products, remove the filter);
The equipment sucks air;
Check the suction pipe;
The pressure of the material is signi
ficantly reduced when the trigger is
pressed
The spray gun’s nozzle is too large or worn;
Replace it with a smaller one;
The spray gun’s filter and the material
output filter’s sieve are too fine;
Replace them with filters of a larger
mesh size;
