Application: The Model 5 is a trailer spring brake control valve. It mounts to a reservoir on the trailer and, like the Model 2 and Model 4, it controls the trailer spring brakes. The Model 5 is similar to the Model 2 and Model 4 but it allows for simpler trailer system plumbing while complying with the latest version of FMVSS 121 (Docket 90-3, Notice 4). However, unlike the Model 2 and Model 4, the Model 5 controls trailer spring brake release using trailer Supply Line pressure. Because dedicated or isolated reservoir pressure is no longer required by law for spring brake release, the Model 5 system needs only a one reservoir for service volume on single axle trailers. Two reservoirs are generally needed for 121 service volume requirements on tandem units.
Part Number | Stock Code |
Description
|
Interchange
|
TV065437 |
14523
|
3/4” Reservoir port
|
065437
109615 |
TV065439 |
14513
|
1/2” Reservoir port
|
065439
109617 |
: WARNING - Cancer and Reproductive Harm - www.p65warnings.ca.gov