§ 393.46 [Reserved]
Current wording, in the annual edition revised as of Oct. 1, 2005.
All connections for air, vacuum, or hydraulic braking systems shall:
(a) Be adequate in material and construction to insure proper continued functioning;
(b) Be designed, constructed, and installed so as to insure, when properly connected, an attachment free of leaks, constrictions, or other defects;
(c) Have suitable provision in every detachable connection to afford reasonable assurance against accidental disconnection;
(d) Have the vacuum brake engine manifold connection at least three-eighths inch in diameter.
(e) If installed on a vehicle on or after January 1, 1981, meet requirements under applicable subsections of FMVSS 106 (49 CFR 571.106).
(f) Splices in tubing if installed on a vehicle after March 7, 1989, must use fittings that meet the requirements of SAE Standard J512-OCT 80 Automotive Tube Fittings or for air brake systems SAE J246—March 81 Spherical and Flanged Sleeve (Compression) Tube Fittings as found in the SAE Handbook 1985 edition.
[33 FR 19735, Dec. 28, 1968, as amended at 44 FR 25457, May 1, 1979; 53 FR 49400, Dec. 7, 1988]
[Reserved]
Amendment history
2 distinct wordings on file since Oct. 1, 1996- Oct. 1, 1996 → Oct. 1, 2005annual editions 1996–2004[33 FR 19735, Dec. 28, 1968, as amended at 44 FR 25457, May 1, 1979; 53 FR 49400, Dec. 7, 1988]
A new entry appears whenever the regulatory words change between government snapshots. Day-precise from the eCFR (2017 onward); before that, one snapshot per annual CFR edition (revised as of October 1). Bracketed citations are the Federal Register history printed with the section. Set a case date in the header to read any earlier wording.