Graco HydroShield WABL00, Instructions - Parts Manual

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Troubleshooting
Troubleshooting Troubleshooting Troubleshooting
Installing and servicing this equipment requires
access to parts which may cause an electric shock
or other serious injury if the work is not performed
properly. Do not install or repair this equipment
unless you are trained and qualified.
Follow the Fluid Voltage Discharge and Grounding
Procedure, page 29 before checking or servicing
the system and whenever you are instructed to
discharge the voltage.
To reduce the risk of an injury, follow the
Pressure Relief Procedure, page 30 whenever you
are instructed to relieve the pressure.
General General
General Troubleshooting
Troubleshooting
Troubleshooting
Problem Problem Problem Diagnosis Diagnosis Diagnosis
Solution Solution
Solution
Prime
Incorrect mode. 1. Change to Prime mode.
2. Trigger the gun.
3. Turn on the fluid supply and
check the incoming fluid
pressure.
Inlet valve is off or stuck.
Test the inlet valve using Main-
tenance screen 5 as described
in
Maintenance 5: Misc Valve
Resets and Test, page 61 .
Service the solenoid valve or fluid
valve. See
Replace a Solenoid
Valve, page 105 .
The isolation fluid pump is not
calibrated and is not showing as
being empty. Calibrate the pump and try
Prime mode again. See
Calibrate the Pump, page 57 .
The fluid pressure supplied to the
system is too low. Increase the supply fluid pressure.
Maximum is 100 psi (0.7 MPa, 7.0
bar).
The system does not prime.
The fluid pressure to the gun is set
to zero or very low. Adjust the gun fluid pressure
setting.
Fluid leaks appear. Seals are worn or there are loose
connections. See
Check for Fluid Leaks, page 67 to
locate and correct.
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