PacBrake at 45 degrees

[SteveS]

EM - I didn't want to hijack the other post so I started a new one. I am interested in your comment from the "Lurking..." post about the angle of the PacBrake shaft. Your said,

Quote:

The PacBrake on the 01's was installed w/the butterfly valve pivot in the vertical position; this should be rotated to 45 degrees and the appropriate lube job done on the butterfly pivots.

I can't figure out technically why this is so. Please explain. Thanks.

[SteveS]

EM - I didn't want to hijack the other post so I started a new one. I am interested in your comment from the "Lurking..." post about the angle of the PacBrake shaft. Your said, <BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content"> The PacBrake on the 01's was installed w/the butterfly valve pivot in the vertical position; this should be rotated to 45 degrees and the appropriate lube job done on the butterfly pivots. </div></BLOCKQUOTE>

I can't figure out technically why this is so. Please explain. Thanks.

[EngineerMike]

Condensate in the PacBrake can settle in the pivot pin hole, cause rust & freeze up the butterfly. Turning it an eighth turn moves the pivot off the bottom of the pipe so condensation won't interfere w/the butterfly's operation.

[skp_member]

Hello All,

I curently have a '96 M/H with a 3126 CAT. My exhaust brake/pac brake is mounted with the shaft vertical. In the link provided on page 3 of the pdf file, which is installation instructions for CAT, Cummins, Mack, Detroit, it says to be sure to mount with the shaft vertical and no more than at a 45 degree angle.

The idea that water can settle in the lower shaft bearing is probably correct for those owners who insist on starting their engines every few weeks and let them run for a few minutes, who think they are doing good.

When you start your engine, either drive it somewhere, or leave it off.

Pac Brake Installation Instructions

Happy Braking

Jim