Issued July 2024
Body and Tailgate
Copyright 2024, The Heil Co.
Printed in the U.S.A.
BODY AND TAILGATE
78
AIR SUPPLY REGULATOR – PNEUMATIC DIAGRAMS
Figure 35. Air Supply Regulator
WELDING AND ELECTRONIC DEVICES / ELECTRICAL LUBRICANTS
Before welding on any unit with electronic devices like the Cortex Controller™, electronic control units (ECUs), and proximity
switches complete the following procedures.
WARNING
Never weld on a compressed natural gas vehicle unless the compressed natural gas fuel system has been purged with inert
gas. See Service Manual Section 1.
Disconnect all battery connections.
Place welding ground as close as possible to the area that is being repaired.
Disconnect the Cortex Controller and all other electronic control units (ECUs).
If welding within 24 inches of a proximity switch, remove the switch from the unit.
Failure to follow these procedures may cause damage to the devices. The damage comes from the inability of the devices to
withstand the amperage, open circuit voltage and magnetic flux a welder can produce.
Electrical Anti-Corrosion Lubricant
It is very important that all Packard connectors are properly lubricated. The following compounds, by brand name, or
functional equivalents, are approved for use.
Truck-Lite Corrosion Preventive Compound
GB ox-gard, anti-oxidant compound
Burndy Penetrox A electrical joint compound.
These lubricants may be obtained at an electrical supply store.
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