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15
GHIBLI 30:1/40:1
REV.
. 01 - 03/2020 - Cod. 150088
O
TROUBLESHOOTING
Problem
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;
- Open the recirculation tap to check
whether the pump starts up. Unscrew
the high pressure filter and clean/
replace the filter sieve. Clean/replace
the spray gun’s filter.
- Clean. Disconnect the outlet product
pipe. Feed pump at minimum pressure
and check if the pump starts without
the outlet pipe;
Clogged product intake line;
Clean the suction filter;
Dried product inside the pumping
element;
Disassemble the pumping group and
clean;
Pneumatic motor blocked in the cycle
reversal position;
- Reduce feed air pressure;
- Consult the paragraph "
Manual reset
of the pneumatic motor
";
Parts failure of the pneumatic motor;
Disassemble the motor and verify;
Accelerate working and no pressure
of the pump
There is no product;
Check the flexible suction tube;
The pump sucks air;
Controllare il tubo di aspirazione
flessibile;
Gaskets of the pumping rod worn;
Replace the lower gaskets;
Suction valve worn or partially clogged;
Disassemble the suction valve. Clean
and/or replace, if possible, the parts
worn;
Suction filter clogged;
Clean/replace the suction filter’s two
disks;
Suction filter too fine;
Remove the fine disk, leaving only the
larger one inside;
Exit valve is worn
Disassemble the exit valve.
Clean and/
or replace, if possible, the parts worn;
The pump functions, but doesn't
stop when the chamber is full (the
pump continues slowly, increasing
and/or decreasing)
Pumping rod seals worn;
Replace the lower seals;
Suction valve worn or partially clogged;
Disassemble the suction valve. Clean
and/or replace, if possible, the parts
worn;
Delivery valve worn or partially obstructed;
Disassemble the delivery valve and
clean/replace any worn parts;
Upper gaskets worn.
Tighten the packing nut.