SAE J2899:2017 pdf free
SAE J2899:2017 pdf free.Brake Adjustment Limit for Air Brake Actuators
Rated stroke markings are to be located on the pressure housing base for service chamber brakes as shown in Figure 1.For Spring Brakes the markings are to be located either on the spring housing base as shown in Figure 1 or on the Spring Brake Center section as shown in Figure 2. All units are to be marked per column“Rated Stroke Marking” as shown in Figure 3.
The rated stroke marking is to be permanently stamped or embossed on the housing or on a corrosion resistant tag permanently affixed or bonded to the housing. The font height of the stroke marking is to be at least 3/8 inch (10 mm) tall and at least 3 times the size of any other characters located on the same tag or within a 1/2 inch (12 mm) from the stroke marking if located directly on the housing. The stamped impression/embossed character are to be a minimum of 0.012 inch (0.31 mm) deep/high and visually confirmed it can be located and read if painted over with up to 0.008 inch (0.2 mm) of paint. It must also be readable after completing the SAE J1469, Section 14, salt spray test procedure.
Relationship between actuator clamp band outside diameter to air brake actuator size is shown in Figure 4. See Figure 5 for graphical definition of the service clamp band outside diameter. This diameter excludes the clamp fastener and is measured on a surface at least 1 inch (25 mm) away from the clamp fastener. On actuators without clamps,the outside diameter is the maximum diameter on the housing at the location shown in Figure 5.
A change bar (l) located in the left margin is for the convenience of the user in locating areas where technical revisions, not editorial changes, have been made to the previous issue of this document. An (R) symbol to the left of the document title indicates a complete revision of the document, including technical revisions. Change bars and (R) are not used in original publications, nor in documents that contain editorial changes only.SAE J2899 pdf free download.
