Versa-Matic 2 Bolted Metallic Ball Valve Pumps (RE2) - Manual (Page 31)

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Model RE2 Metallic Bolted •
28
airVantage Servicing - Poppet Valve
Step #1: Remove the Patch Cable
Twist the ribbed portion of the patch cable connector in
a counterclockwise direction, until it unthreads from the
connector.
Step #2: Remove the AirVantage from the Pump
Use a ½” socket and remove the four 5/16-18 x 5 1/2 cap
screws that hold the AirVantage to the pump. Remove the two
chamber bolts/nuts that are holding the right side bracket to be
able to remove the right bracket and AirVantage unit from the
pump. Be sure to support the weight of the AirVantage while
removing the last cap screw. After the AirVantage is removed
from the pump, set the unit down on the plastic cover located
on the bottom. Inspect the o-ring between the poppet valve and
the adapter plate for damage.
Step #3: Access the Pilot Valve and Pressure Regulator
Use a 5/32 hex-key wrench and loosen the four 10-32 x .50
socket head cap screws securing the top cover on. Lift the
cover off, exposing the pilot valve and pressure regulator.
There is a molded o-ring seal located on the underside of the
cap. Make sure the o-ring stays located within the groove.
Unplug the connector attached to it. Use a miniature 4-way
Phillips screwdriver and remove the two screws securing the
pilot valve to the plate. The valve and gasket can now be
removed and/or replaced.
Use slip-joint pliers to unscrew the regulator from the body by
turning it in a counterclockwise direction.
“AirVantage CAUTION” – Do not loosen or tighten the
regulator by turning the knurled portion of the unit. Place
the slip-joint pliers on the smooth area underneath the
knurled area of the regulator.
Reinstall the top cover and loosely reinstall the bolts. Turn the
assembly over and let it now rest on the top cover.
Step #4: Access the Power Generation Module
Use a 5/32 hex-key wrench and remove the four 10-32 x .50
socket head cap screws securing the bottom cover on. Lift
the bottom cover off, exposing the power generation module.
There is a molded o-ring seal located on the underside of the
cap. Make sure the o-ring stays located within the groove.
Unplug the connector that connects the power generator to the
control board. Use a 5/32 hex-key wrench to loosen the four
10-32 x 2 ¼ socket head cap screws. The power generation
module should now be loose. Carefully lift the power
generation module off the rest of the assembly, making sure
that the control board wire and connector slips through the hole
in the power generation case.
Step #5: Access the Control Module
Use a 5/32 hex-key wrench and loosen the two 10-32 x 1.00
socket head cap screws securing the control module to the
poppet assembly. The control module should now be loose.
Carefully lift the control module off the poppet assembly,
making sure that the pilot valve connector wire slips through
the hole in the poppet valve assembly.
The Poppet valve assembly can now be replaced.
Step #6: Reinstallation
Install the control module on the poppet valve assembly. Make
sure to feed the pilot valve connector wire through the hole in
the poppet valve assembly. Install the two 10-32 x 1.00 socket
head cap screws and tighten to 30 in-lbs.
Install the power generation module onto the control module.
Make sure to feed the control module wire through the hole in
the power generation case. Install the four 10-32 x 2 ¼ socket
head cap screws and tighten to 60 in-lbs.
“AirVantage Caution” – Be sure to reattach the connector
from the power generator to the control board.
Install the bottom cover, making sure the o-ring seal is still in
the groove. Tighten the four 10-32 screws. The unit can now be
turned over and set on the bottom cover.
Install the pilot valve, tighten the screws snug with a jeweler's
screwdriver.
“AirVantage Caution” – Be sure to reattach the connector
to the pilot valve.
AirVantage Caution” – Be sure to reattach the patch cable
connector that connects the AirVantage module to the
intermediate.
If the pressure regulator needs to be replaced, use slip-joint
pliers to unscrew the regulator from the body by turning it in a
counterclockwise direction.
“AirVantage CAUTION” – Do not loosen or tighten the
regulator by turning the knurled portion of the unit. Place
the slip-joint pliers on the smooth area underneath the
knurled area of the regulator.
Step #4: Reinstallation
Reinstall the top cover, making sure the o-ring seal is still in the
groove. Tighten the four 10-32 screws.
Reinstall the AirVantage right bracket, chamber bolts/nuts and
four 5/16-18 x 5 1/2 cap screws, torque to 90 in-lbs.
“AirVantage Caution” – Be sure to reattach the patch
cable connector that connects the AirVantage module
to the intermediate.
Refer to Page 27 for Illustration.