www.larius.com
9
GHIBLI 10:1
ED.
05 - 10/2020 - Cod. 150154
Always close the compressed air supply and release the pressure in the plant before performing any check or
replacement of parts of the pump.
TROUBLESHOOTING
Problem
Possible cause
Solution
The pump does not start
Feed air not sufficient
Check on the air supply line. Increase
the diameter of the feed hose.
Outlet product line clogged
Clean. Disconnect the outlet hose of the
product. Feed the pump at he minimum
pressure and verify if the pump starts
without the outlet hose.
Inlet product line clogged
Clean the suction pipe.
Pneumatic motor blocked at the upper or
lower stroke end (Dead Center)
Reduce feed pressure;
Manually reset the pneumatic motor
(see on page 10);
Crosspiece screws failure of the pneu-
matic motor
Replace the screws (see on page 10).
Accelerated working and no pressure
of the pump
Lack of product
Add product.
The pumps sucks air
Check the flexible suction hose (only for
suction threaded valve version).
The product is too fluid
Adjust the suction valve (see on page 11).
Gaskets of the pumping rod worn
Replace the lower gaskets (see on
page 12).
The ball of the suction valve does not
perfectly "close"
Disassemble the suction valve and clean
(see on page 11).
The pump works but the flow of
product is not sufficient
Air feed pressure is too low
Increase air pressure.
Gaskets of the pumping rod worn
Replace the lower gaskets (see on
page 12).
Inlet product line clogged
Clean the suction pipe.
Product is too thick
Adjust the suction valve (see on page 11).
The ball of the suction valve does not
perfectly "close"
Disassemble the suction valve and clean
(see on page 11).
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