Graco HydroShield WABH00 Instructions - Parts Manual page 102

Repair
Reinstall Reinstall the Reinstall the the Isolation Isolation Isolation Fluid
Cabinet Cabinet Cabinet
NOTICE
NOTICE NOTICE
Any fluid leaking or pooling inside the cabinet can
cause the system's voltage to lower below normal
operating voltage. Low system voltage can cause
arcing that damages system components. Clean
the cabinet of residual fluid before reassembling.
1. Place the isolation fluid pump into the cabinet.
2. Connect the wire from the linear sensor (321) to
the cable splitter (427). For wiring locations, see
Wiring Connections, page
3. Reinstall the top mounting screws and bottom
mounting screws, then tighten all screws.
4. Reconnect the air line hose. For hose locations,
see Pneumatic Connections, page
5. Reconnect and tighten the inlet fluid hose fitting
at the bottom left of pump.
6. Reconnect and tighten the outlet fluid hose fitting
at the bottom right of pump.
7. Calibrate the pump. Follow the steps in
Calibrate the Pump, page
8. Perform a pump stall test. Follow the
Pump Stall Test Procedure, page
9. Replace the four 3/16 inch hex head screws to
close the electronics panel (14).
10. Replace the isolation valve cover (99) and tighten
the top and bottom screws (99a).
11. Reinstall the electrostatic shield (82) inside the
cabinet.
12. Close the cabinet door and use a flat blade
screwdriver to secure the door shut.
Disassemble Disassemble Disassemble the the the Isolation Isolation Fluid Isolation
1. Remove the isolation fluid pump from the cabinet.
See Remove the Isolation Fluid Pump from the
Cabinet, page 101.
2. Lay the pump on its side and unscrew the sensor
(321) from the top of the pump. Check the o-ring
next to the sensor to make sure it is not cracked.
3. Remove the muffler fitting (323).
102
Fluid Pump Fluid Pump in in in the Pump the the
112.
110.
57.
60.
Fluid Pump Fluid Pump Pump
4. Disassemble the fluid section of the pump:
a. Loosen the four tie rod screws (312) with a
socket wrench.
b. Sit the pump with the fluid side up and
remove the tie rod screws (312).
c. Lift up and remove the fluid cover (311) and
gasket seal (309).
d. Wiggle the cylinder (310) off of the middle
housing (307).
e. Lay the pump on its side.
Figure 46 Removing the Fluid Cover
3A8492A