Troubleshooting; General Troubleshooting; Check For Fluid Leaks, Page - Graco HydroShield WABH00 Instructions - Parts Manual

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
system and whenever you are instructed to discharge the voltage.
To reduce the risk of injection injury, follow the
instructed to relieve the pressure.
1. Follow the Pressure Relief Procedure, page
30 before checking or repairing the system.

General Troubleshooting

Troubleshooting
General General Troubleshooting
Problem
Problem Problem
Prime
The system does not prime.
Fluid leaks appear.
3A8492A
Pressure Relief Procedure, page
2. Check all possible problems and causes before
Diagnosis
Diagnosis Diagnosis
Incorrect mode.
Inlet valve is off or stuck.
The isolation fluid pump is not
calibrated and is not showing as
being empty.
The fluid pressure supplied to the
system is too low.
The fluid pressure to the gun is set
to zero or very low.
Seals are worn or there are loose
connections.
29, before checking or servicing the
30, whenever you are
disassembling the system.
Solution
Solution Solution
1. Change to Prime mode.
2. Trigger the gun.
3. Turn on the fluid supply and
check the incoming fluid
pressure.
Test the inlet valve using Main-
tenance screen 5 as described
in Maintenance 5: Misc Valve
Resets and Test, page
Service the solenoid valve or fluid
valve. See
Valve, page
Calibrate the pump and try
Prime mode again. See
Calibrate the Pump, page
Increase the supply fluid pressure.
Maximum is 100 psi (0.7 MPa, 7.0
bar).
Adjust the gun fluid pressure
setting.
See

Check for Fluid Leaks, page 68

locate and correct.
Troubleshooting
61.
Replace a Solenoid
106.
57.
to
71