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November 2008 Part No. 920559 Rev H
5.4 Vapor Recovery
All hoses, nozzles, breakaways, etc., must be CARB certified for use on Wayne vapor recovery dispensers.
5.4.1 Wayne Vac
See the Compliance Testing and Preventative Maintenance manual, p/n 917947.
5.4.2 Balance
Tears or rips in the balance nozzle vapor bellows will cause the vapor system to be in non-compliance.
Replace or repair the nozzles as necessary.
The bellows face-plate (where nozzle seals on vehicle fuel tank) must make a good seal when inserted into
the fuel tank. Damaged or warped faces are not acceptable and will cause the system to be in non-compli-
ance. Replace or repair as necessary.
Wire clamps at top of the bellows may have critical placement to requirement to maintain compliance. If
clamp is loose or broken, it must be replaced or repaired according to the nozzle manufacturer instructions.
To ensure on-going compliance of the balance system, once per year checks of the pressure drop and tight-
ness of the system are recommended. These test are discussed in Section 2.
5.5 Meter Maintenance Issue
It is recommended that Wayne Fuel Meters be periodically checked for acceptable accuracy based on
NCWM Handbook 44 under the General Code, G-UR.4 Maintenance Requirements and Liquid Measuring
Device Code, Section 3.30.
If adjustment need to be made, one would follow the prescribed procedure in the service manuals for the
respective equipment. All adjustments shall be made in accordance with G-UR.4 Maintenance Require-
ments of Handbook 44.
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