How to Measure the Tunnel Device Locations
PURPOSE
Guide for measuring the tunnel according to current standards.
PROCESS
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Place a 100’+ tape measure into the grating so the zero-point lines up with the photo eye.
- Run the tape measure down the full length of the tunnel
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Write down the measurements of each device and/or relay in the tunnel.
- You can download a copy of the Relay Planner.xlsx locally to your computer to assist with saving measurements
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To measure the wraps, grill brushes, and top brushes: take the measurement from the center mass of the hub with the air extended.
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To measure the poodle brush and tire shine: take the measurement from the beginning of the brush with the air extended
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To measure the chemicals and liquid application: take the measurement from the location of the closest nozzle to the entry eyes.
- Pay close attention to the platinum seal as the lights and chemical bars are often swapped.

- To measure the blowers: take the measurement from the center of the arch
- To measure the lights: take the measurement from the center of the LED's.
HISTORY
Revised Date
Revised By
Revisions
4/2/2025
Carl Williams
Created Document
4/2/2025
Andrew Poskey
Updated formatting for publishing