
22
PureFlow
®
Technologies, Inc.
AirDog
®
FPII-150
Detroit Series 60 2003-09
Section 8
Wiring Harness
Relay Trigger Lead and Indicator Light Lead
The AirDog
®
Wiring Harness Indicator Light lead must be routed through the firewall and
to the dash board. The Relay Trigger Lead must be connected to a contact point that is
electrically “HOT” when the key is in the “RUN” position. This could be either in a spare fuse
holder in the fuse panel or on the ignition switch itself.
Note: DO NOT connect the AirDog
®
wiring harness relay trigger lead to a point that is
“HOT” when the key is in the ACCESSORY position.
8-5. Route the
AirDog
®
wiring harness
trigger lead (red wire with no connector/plug) and indicator
light lead through the firewall.
Routing the Indicator Light and Relay Trigger Lead
through the firewall:
8-4. Most Peterbilts and Kenworths have access holes located below the steering column. Remove
the plug and route the leads through the hole. For other make trucks, drill a 5/8” hole in firewall to
allow entry of the indicator light lead into the cab. Use the grommet to seal around the loom cover.
By the Steering Column
Under the Dash
NOTE: Be sure to seal the opening or install a grommet around the wire loom to prevent water
leakage and protection from chafing.
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