Installation Guide - Dana Corporation
Installation Guide - Dana Corporation
Installation Guide - Dana Corporation
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<strong>Installation</strong><br />
Axle Vent <strong>Installation</strong><br />
1. Install a 1/4" NPT male to 3/8" NTA fitting in the 1/4"<br />
pipe thread located on the axle for venting.<br />
2. Run 3/8" OD Nylon Air Brake Tubing to the frame and<br />
position the end facing down to prevent contamination.<br />
See illustration below.<br />
3. Secure tubing as required.<br />
Vent Fitting<br />
1/4" NTP to 3/8"<br />
Nylon Tubing<br />
Adapter<br />
Trailer Frame Rail<br />
Front of Trailer<br />
Axle Vent Hose<br />
(minimum 3/8" OD<br />
nylon air brake tubing)<br />
Trailer<br />
Axle<br />
CAUTION: Position the end of the vent tube down to<br />
prevent contamination of the axle.<br />
Control Line <strong>Installation</strong><br />
A pressure protection value (PPV) is recommended between<br />
the trailer air supply tank and the Tire Maintenance System<br />
controller assembly. An existing suspension PPV can also be<br />
used to supply air to the suspension as well as the Tire Maintenance<br />
System.<br />
Proper Tire Maintenance System operation requires correct<br />
air line diameters and lengths. The following diagrams show<br />
air brake tubing lengths and sizes and associated fittings<br />
required to complete the system installation.<br />
CAUTION: To prevent twisting air line inside axle when<br />
tightening fittings to the axle hose fitting, use a wrench<br />
to hold the axle hose fitting.<br />
CAUTION: Proper Tire Maintenance System operation<br />
requires correct air line diameters and lengths. <strong>Installation</strong><br />
sizes and lengths must be within limits shown.<br />
CAUTION: Proper Tire Maintenance System operation<br />
requires correct air line connections. All junctions of<br />
two or more 1/4" lines MUST “upsize” to 3/8" line for<br />
adequate flow.<br />
CAUTION: To prevent contamination of the Tire Maintenance<br />
System, do not install fitting on the bottom of<br />
the air supply tank.<br />
Additional Axles<br />
For systems with 3 or 4 axles, observe the installation requirements<br />
as shown in the following diagrams. Extend the main 3/<br />
8" run as necessary. However, all total line lengths must still<br />
remain within the limits listed on the diagrams.<br />
CAUTION: Failure to properly install axle vent may<br />
result in wheel end pressurization and/or water ingestion<br />
which could cause wheel end failure.<br />
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