DRAGON
24
English
J
PROBLEMS AND SOLUTIONS
Solution
Cause
Problem
•
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 keeps on going up and
down)
•
Material escaping from the cap
•
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;
•
Lack of product;
•
The equipment sucks air;
•
The drain 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;
•
Drain valve defective;
•
Material leaking from the O-Ring.
•
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;
•
Add the product;
•
Check the suction pipe;
•
Close the drain valve;
•
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;
•
Replace the O-Ring.
Always close the air compressed supply and unload the plant pressure before performing any check or replace-
ment of pump parts
(see "correct procedure of decompression")
.
