18. TROUBLESHOOTING
Failure
Cause of the failure
Repair
The equipment does not
start up
The equipment does not
absorb product
The equipment sucks but
does not reach the
required pressure under
load
Abnormal vibration in the
output hose
The equipment absorbs
product and generates
pressure on closing the
stopcock, but the pressure
drops sharply when the
trigger is pressed
Pronounces horns or
stripes appear at the
edges of the spray width
Faulty power supply
Failure in the electric motor
Pressure in the equipment
The container of product for application is empty
The suction filter is clogged
The suction probe is loose, clogged or
punctured
The pressure regulator is at the minimum setting
The drain stopcock is closed
The suction valve is jammed, dirty or damaged
The anti-return valve is jammed, dirty or
damaged
The oil level in the housing is insufficient
The driving diaphragm is damaged
The hydraulic system is loose or faulty
The drain tube stopcock is open or damaged
Insufficient oil level
Anti-return valve is damaged or dirty
Suction hose or filter is damaged or dirty
The diaphragm is punctured or broken
Air bubbles in the hydraulic system
Anti-return valve is damaged or dirty
Anti-return valve joint is damaged
Defective lower anti-return valve connection.
The suction probe and/or suction filter are loose,
dirty or damged
The suction probe is worn
The gun is not fitted with a cap
The gun filter is clogged
The cap is worn
The paint is too thick
The material is too thick
Insufficient pumping pressure
The gun filter is clogged
The suction probe and/or suction filter are loose,
dirty or damged
Check the power supply network
Make sure the equipment is plugged into the
power supply
Check that the motor switch is at the setting "on"
Faulty condenser in the motor
Faulty motor switch
Check the plug and switch wiring
Eliminate pressure in the unit following the
descompression procedure described on manual
Re-fill the container
Clean or replace
Check or replace the suction probe
attachment bolt
Adjust th epressure regulator
Open the stopcock
Release the suction valve and clean or
replace
Release anti-return valve and clean or
replace
Replenish the housing with oil to the level
indicated on the diptick
Replace the diaphragm
Disassemble as indicated in the appropriate
section and check the piston, sleeve and
hydraulic connections
Close the stopcock or replace
Replenish
Clean or replace the valve
Clean or replace the valve
Replace the diaphragm
Adjust th eproduct regulator (Maximum
-Minimum) to eliminate the air bubbles
Clean or replace the valve
Replace the joint
Replace the anti-return connection. Tighten
the suction probe, and clean or replace the
suction probe and the suction filter
Replace the suction probe
Fit a cap
Clean or replace
Replace with a new cap
Dilute the paint with solvent
Dilute the product to the correct viscosity
Turn the pressure regulator to increase the
pumping pressure
Clean or replace
Tighten and/or clean or replace the suction
probe and the suction filter
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