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Test procedures Truck and Bus Foundation Brake Committee Documentation Medical, health, and wellness

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Standard

Inertia Dynamometer Rotor Crack Test Procedure for Air Disc Brakes
2023-12-12
CURRENT
J3080_202312
This Recommended Practice applies to commercial vehicles equipped with air disc brakes and above 4536 kg of Gross Vehicle Weight Rating. Other assessments on the friction material or rotor related to wear, durability, correlation to product life, noise, judder, compliance to specific regulations, etc., are not part of this RP (Recommended Practice).
Standard

Brake Drum Qualification Recommended Practice
2022-12-20
CURRENT
J2686_202212
This SAE Recommended Practice is intended for qualification testing for brake drums used on highway commercial vehicles with air brakes using an inertia-dynamometer procedure. This document consists of two distinct tests: Part A, durability and speed maintenance test, and Part B, heat check drag sequence test. Each test can be considered to be an independent evaluation of the brake drum which tests different properties.
Standard

Brake Effectiveness Marking for Brake Blocks - Truck and Bus
2019-06-06
CURRENT
J1801_201906
This SAE Recommended Practice provides the method to assign numerical values of brake effectiveness, using data from single station inertia dynamometer effectiveness tests, and to identify a uniform procedure to mark these values on the edge of brake blocks in excess of 12.7 mm (0.51 in) in thickness.
Standard

Brake Block Effectiveness Rating
2019-06-06
CURRENT
J1802_201906
This SAE Recommended Practice provides the test procedure and methods to calculate the effectiveness of brake blocks, using an inertia dynamometer. To minimize testing variability, and to optimize standardization and correlation, a single, high volume size of brake block is specified (FMSI No. 4515E) and evaluated in a reference S-cam brake assembly of 419 mm x 178 mm (16.5 in x 7.0 in) size, using a specified brake drum.
Standard

Service Brake Structural Integrity Requirements—Truck and Bus
2019-04-24
HISTORICAL
J1404_201904
This SAE Recommended Practice presents requirements for the structural integrity of the brake system of all new trucks, buses, and combinations of vehicles designed for roadway use and falling into the following classifications: a Truck and Bus—Over 4500 kg (10 000 lb) GVWR b Combination Vehicles—Towing vehicle over 4500 kg (10 000 lb) GVWR The requirements are based on data obtained from SAE J294.
Standard

Service Brake Structural Integrity Requirements—Truck and Bus
2014-11-15
HISTORICAL
J1404_201411
This SAE Recommended Practice presents requirements for the structural integrity of the brake system of all new trucks, buses, and combinations of vehicles designed for roadway use and falling into the following classifications: a Truck and Bus—Over 4500 kg (10 000 lb) GVWR b Combination Vehicles—Towing vehicle over 4500 kg (10 000 lb) GVWR The requirements are based on data obtained from SAE J294.
Standard

Brake Effectiveness Marking for Brake Blocks—Truck and Bus
2014-10-27
HISTORICAL
J1801_201410
This SAE Recommended Practice provides the method to assign numerical values of brake effectiveness, using data from single station inertia dynamometer effectiveness tests, and to identify a uniform procedure to mark these values on the edge of brake blocks in excess of 12.7 mm (0.51 in) in thickness.
Standard

Brake Block Effectiveness Rating
2014-10-27
HISTORICAL
J1802_201410
This SAE Recommended Practice provides the test procedure and methods to calculate the effectiveness of brake blocks, using an inertia dynamometer. To minimize testing variability, and to optimize standardization and correlation, a single, high volume size of brake block is specified (FMSI No. 4515E) and evaluated in a reference S-cam brake assembly of 419 mm x 178 mm (16.5 in x 7.0 in) size, using a specified brake drum.
Standard

Manual Slack Adjuster Test Procedure
2014-04-28
CURRENT
J1461_201404
This SAE Recommended Practice is intended for testing of manual slack adjusters as they are used in service, emergency, or parking brake systems for vehicles that can be licensed for on-road use.
Standard

Service Brake Structural Integrity Test Procedure—Vehicles Over 4500 kg (10 000 lb) GVWR
2011-05-19
HISTORICAL
J294_201105
This SAE Recommended Practice establishes a method of testing the structural integrity of the brake system of all new trucks, buses, and combination vehicles designed for roadway use and falling in the following classifications: a Truck and Bus—Over 4500 kg (10 000 lb) GVWR b Combination vehicle—Towing vehicle over 4500 kg (10 000 lb) GVWR The test consists of two distinct tests: a Structural Endurance Test followed by a Structural Ultimate Strength Test.
Standard

Brake Block Chamfer
2011-05-17
CURRENT
J662_201105
The scope of this SAE Standard is to provide a uniform chamfer on brake blocks.
Standard

Test Component Specifications
2011-05-16
HISTORICAL
J1802/1_201105
This SAE Recommended Practice contains the reference information for SAE J1802.
Standard

Manual Slack Adjuster Test Procedure
2009-01-06
HISTORICAL
J1461_200901
This SAE Recommended Practice is intended for testing of manual slack adjusters as they are used in service, emergency, or parking brake systems for vehicles that can be licensed for on-road use.
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