14/55
Problem
Possible cause
How to find
out
How to verify
(finding)
How to solve
How to check if the
problem was
solved
Panel turns on, but
the pump does
not work.
Panel and pump connec-
tors disconnected or in
bad contact.
Visual check by
opening the equip-
ment base lid and
analyzing all connec-
tions and terminals.
Visually analyze if the connectors are
connected or if there are differences in
the shape of the terminals.
Connect them if they are dis-
connected.
Pump should work normally.
Pressure switch is un-
regulated.
Visual check using a
calibrated pressure
gauge and practical
spray test where
intermittent spraying
can be found.
Using a calibrated pressure gauge and
the blue adjustable nozzle installed,
start the machine at maximum pressure
and press the trigger. Spraying should
be regular and continuous.
Using an allen wrench and the
trigger pressed, adjust the
pressure switch by turning the
screw until continuous spraying is
achieved. When we stop spraying,
we should find a pressure between
60 and 70 psi.
Spraying should have a contin-
uous flow without interruption,
and the pressure found when
spraying is stopped should be
between 60 and 70 psi, which
should be quantified by using a
calibrated gauge.
Wire solder and pump are
irregular.
Visual check by
opening the bottom
lid of the equipment
and checking for any
disconnected wires.
Visually analyze if the solder between
the wires or connectors is firm and well
connected.
Solder or adjust the wires and
connectors.
Pump should work normally.
Pump with shaft locked.
Visual check.
Turn off the panel. Wait 30 seconds and
turn on the panel at maximum pressure.
Press the trigger. If there is no spraying,
check if the pump is heated.
Replace the pump.
Spraying should occur normally.
Panel turns on,
pump turns on,
but there is no
spraying.
Tank suction or suction
filter clogged.
Visual check or
practical test.
Disconnect the base lid of the equip-
ment and check if the suction hose is
clogged. Remove the filter lid and check
if it is clean.
Clear or clean.
Spraying should occur normally.
Assembly of hoses or
components inverted.
Visual check.
Open the base lid of the equipment
and check if there is consistency of the
indicative arrow on the pump head with
the flow of hoses (inlet/suction and
outlet/pressure).
Position and assemble hoses or
valves correctly as specified in the
service manual.
Spraying should occur normally.
Lance, hose, or nozzle filter
clogged or damaged.
Visual check.
Check if the lance, hose, filter or nozzle
is clogged or damaged.
Unclog or change lance, hose or
spraying filter.
Spraying should occur normally.
Sphere glued.
Visual check.
The equipment turns on, but does not
pressurize the liquid.
Using a hose with a continuous
water flow, place it over the suc-
tion tube with the machine turned
on and the trigger lever pressed
for a few seconds.
The equipment will start spray-
ing after a few seconds.
Equipment work-
ing with intermit-
tent spraying.
Pressure switch is un-
regulated.
Visual check using a
calibrated pressure
gauge and practical
spraying test.
Install pressure gauge and blue adjust-
able nozzle, turn on the equipment at
maximum pressure, press the trigger
and check the spraying pattern. It
should be uniform. After closing the
lance trigger valve and the machine
shuts down, the pressure should be
between 60 and 70 psi.
Install the blue adjustable nozzle,
turn on the equipment at pressure
5, press and lock the trigger, adjust
the pressure switch by turning the
allen wrench until uniform spraying
and pump running continuously.
Stop spraying and check pressure
gauge until pressure is found
between 60 and 70 psi.
Spraying should have a contin-
uous flow without interruption,
and the pressure found when
spraying is stopped should be
between 60 and 70 psi, which
should be quantified by using a
gauged gauge.
Sudden interrup-
tion of spraying
during use.
Battery discharged.
Visual check.
After the interruption, the panel light
(LED) will flash.
Charge the battery.
The sprayer should work by
turning the potentiometer
clockwise.
Charging is irregu-
lar or interrupted.
Bad contact with plug
terminals.
Visual check.
When connecting the plug, the light
will switch on / off when the plug wire
is moved.
Replace charger.
When connecting the plug, the
charger light should change
color.
Spraying is
irregular.
Nozzle wear.
Visual check of
spraying pattern.
With the equipment working, make sure
that there are no irregularities in the
spray coming out of the nozzle.
Change full nozzle.
With the equipment working,
observe the spray coming out of
the nozzle. Uniform and continu-
ous spraying should be found.
