Graco HydroShield Instructions Manual page 110

Repair
Replace Replace an Replace an an Electro/pneumatic Electro/pneumatic (V2P) Electro/pneumatic
Regulator Regulator Regulator
1. Prepare the electrical controls for service. Follow
the steps in Prepare the Electrical Controls for
Service, page 109.
2. Disconnect the splitter cable (446).
3. Disconnect the air lines.
4. Remove the screws (408) to remove the regulator
bracket (434) and V2P (415) from the panel.
5. Move the regulator bracket (434) and fittings to
the new V2P (415).
6. Reinstall the regulator bracket (434) and V2P
(415) onto the electronics panel (401).
Note
Do not use liquid thread sealant. Use
tape instead.
7. Reconnect the air lines as shown in
Pneumatic Connections, page
110
(V2P) (V2P)
8. Perform the zero clear procedure on the V2P
114.
(415):
The top of the V2P (415) contains 3 keys: Down
arrow, Set (S), and Up arrow.
a. To unlock the keys, press the down arrow
key for 2 seconds or more until the screen
flashes "Loc."
b. Press the S key once to unlock the keys. The
screen displays "unL" for approximately one
second when the keys are unlocked.
c. Press the S key for 2 seconds or more.
d. Use the up and down arrow keys to go to
"F03." The screen alternatively displays
"F03" and "0cL."
e. Press the S key. The screen flashes "0cL."
f. Press and hold both the up and down
arrows at the same time for approximately 3
seconds. The screen displays "0cL."
g. After 3 seconds, the zero clear is executed
and the screen displays "cLr" briefly. This
operation also locks the keys again.
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