Graco HydroShield WABH00, Инструкция - Каталог запасных частей

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Troubleshooting
Problem Problem
Problem
Diagnosis Diagnosis
Diagnosis
Solution Solution Solution
Incorrect voltage level display Check system voltage using a
probe (236003).
Calibrate the bleed resistor as
described in
Calibrate the Bleed
Resistor, page 58 .
Check or replace the kV
board as described in
Replace a kV Board, page 106 .
Ground Rod Delay setting. Adjust the Ground Rod Delay
setting on the System screen. See
System Screen, page 66 .
The ground rod (18) does not
lower.
Follow the procedure in
Check and Lubricate the Ground
Rod, page 69
.
Voltage is still present at the gun
after the trigger is released.
The ES request input is still active. Remove the ES request input
signal.
Air pocket in the fluid line leaves
fluid isolated near the gun. Determine cause and correct.
Purge air from the fluid line. Voltage is still present at
the gun after following the
Fluid Voltage Discharge and
Grounding Procedure, page 29
.
Issue with the door switch. Check the door
switch as described in
Check the Door Switch, page 70 .
Paint goes backward toward the
paint supply. Faulty inlet valve and check valve. With the shuttle down, test the
Shuttle Fluid In, Pump Fluid In, and
Pump Pressure valves individually
on Maintenance Screen 4. If fluid
is in valves at the same time as
there is pump pressure, this can
result in fluid back-flowing if a
check valve is not present.
See Maintenance 4: Fluid Valve
Resets and Test, page 61 .
Check for a leaky check valve.
Other issues
Paint build-up on the isolation
valve stem. 1. Dirty wash fluid can no longer
clean properly.
2. The U-cup seals are not wiping
the isolation valve stem clean.
3. The isolation valve stem (222)
o-ring is not sealing fully.
1. Follow the steps in Replace
the Wash Fluid, page 69 .
2. Replace wash fluid U-cups as
seen in repair section.
3. Replace the isolation valve
stem o-ring as described in
Replace the Isolation Valve
Stem O-rings, page 96
.
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