7
SOLUTION
Remove siphon tube and feel lower ball check
to be sure it is free to move off it is seat. Place
full cup of paint thinner over end of fluid
section and turn on pump.
Remove and clean.
Hold gun trigger in open position and run unit
about 10 seconds until air is purged. Check
for siphon tube leak.
Replace.
Prime pump with compatible solvent. Bring up
to pressure, carefully remove pump from
solvent container and immerse inlet tube into
heavy material to be sprayed. With nozzle tip
removed trigger gun until heavy material
appears at gun.
Replace nozzle tip and you are ready to spray.
Remove and clean.
Check connection and seal.
Relieve pressure, remove tip and clean.
Adjust to increase pressure.
Clean or temporaly remove.
Replace or clean.
Hold gun trigger in open position and run
about 10 seconds until airs is purged.
Replace.
Replace.
With gun trigger closed, allow unit to pump
up to pressure and shut off if pump
momentarily starts, internal leak is indicated
and fluid section rebuild is necesary.
CAUSE
Dried out piston packings.
Stuck valve balls.
Pump inlet screen plugged.
Air in pump or hose
Packings worn.
Fluid too viscous.
Siphon tube clogged.
Siphon tube air leak.
Clogged tip.
Pressure adjusting knob not
properly set.
Pump inlet strainer dirty.
Valve balls or seats worn or
dirty.
Air in pump or hose.
Packings worn.
Worn spray tip.
Internal leakage.
TROUBLE
Unit will not
prime
Unit will not
build or
maintain
pressure.
TROUBLESHOOTING CHART
8
CAUSE
Fuid leak.
Fluid too viscous.
Too large a spray tip.
Worn packing.
Upper packings worn.
Piston rod worn.
Too large a tip size.
Pressure adjustment wrong.
Insufficient fluid delivery.
Fuid too viscous.
Pressure adjustment low.
Improper voltage supply.
Excessive pressure.
Excesive extention cord length
or improper wire gauge.
TROUBLE
Unit will not
build or
maintain
pressure.
Fuid leakage
out relief hole
at pressure
control.
Fluid leakage
at upper end
of fluid
section.
Bad spray
pattern.
Unit lacks
power.
Blown fuses
at pump.
SOLUTION
Check for external leaks including hydraulic
fittings attached to pressure control
housing.
Consult manufacturers recommendations on
paint container label.
Change tip.
Repack or replace transducer.
Relieve pressure and tighten packing take
up nut or replace packings.
Replace.
Change to a smaller tip size.
Adjust pressure control knob.
Clean all straines and filters in system.
Add solvent to fluid according to
manufacturer’s recommendations.
Increase.
Reconnect input voltage accordingly.
Have Service Center recalibrate the pressure
control.
Use 3x1,5 mm. section wire or larger up to
maximum of 50 meters. For additional lenght,
more airless hose may be used.
