Ediz. 010 - 06/2015
TROUBLESHOOTING
N
Always disconnect the equipment and discharge the pressure before performing any check or replacement of
pump parts
(see "correct procedure of decompression")
.
•
The equipment does not start
•
The equipment does not suck the
product
•
The equipment sucks but does not
reach the pressure desired
•
When pressing the trigger, the
pressure lowers considerably
•
The pressure is normal but the
product is not atomized
•
The atomization is imperfect
•
When releasing the trigger of the
gun, the equipment does not stop
(
the motor runs slowly and the
piston rod moves up and down
)
• Lack of voltage;
• Considerable drops in mains voltage;
• On/Off switch disconnected;
• Breakdown of pressure transmitter;
• Breakdown of motor electric control box;
• The line of material coming out of the
pump is already under pressure;
• The product is solidified inside the
pump;
• Suction filter clogged;
• Suction ilter too fine;
• The equipment sucks air;
• Ball is blocked;
• Lack of product;
• The equipment sucks air;
• The recirculating-safety valve is open;
• The gaskets of the pumping group
are worn;
• Suction or delivery valve dirty;
• Nozzle too big or worn;
• The product is too dense;
• The filter of the gun-butt is too fine;
• The nozzle is partially clogged;
• The product is too dense;
• The filter of the gun-butt is too fine;
• The nozzle is worn;
• The gaskets of the pumping group
are worn;
• Suction or delivery valve dirty;
• Recirculating-safety valve defective;
• Check the correct connection to
the power supply;
• Check the extension cable;
• Ensure the On/Off switch is on the
“on” position and turn clockwise
the pressure control knob;
• Verify and replace it, if necessary;
• Verify and replace it, if necessary;
• Open the drain valve to release
pressure in the circuit;
• Open the drain valve to release
pressure in the circuit and stop
the machine. Disassemble the
pumping group and the pressure
transmitter and clean;
• Clean or replace it;
• Replace it with a larger-mesh filter
(
with very dense products, remove
the filter
);
• Check the suction pipe;
• Press the manual unlocking device;
• Add the product;
• Check the suction pipe;
• Close the recirculating-safety val-
ve;
• Replace the gaskets;
• Disassemble the pumping group;
• Replace it with a smaller one;
• Dilute the product, if possible;
• Replace it with a larger-mesh filter;
• Clean or replace it;
• Dilute the product, if possible;
• Replace it with a larger-mesh filter;
• Replace it;
• Replace the gaskets;
• Disassemble the pumping group
and clean;
• Verify and replace it, if necessary;
Solution
Cause
Problem
Solution
Cause
Problem
www.larius.eu
JOLLY
18
