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Parking Brake Drawbar Pull Test Procedure—Truck and Bus
- Ground Vehicle Standard
- J1729_200802
- Revised
Downloadable datasets available
Annotation ability available
Sector:
Issuing Committee:
Language:
English
Scope
This SAE Recommended Practice provides a test method and instructions for measuring performance of parking brakes on air- or hydraulic-braked vehicles equipped with in-wheel or drive-line parking brakes. This procedure applies to truck-tractors, trailers, trucks and buses.
Rationale
This document has been updated in keeping with the five-year review process. The Brake Systems Subcommittee has sanctioned the following changes:
-
a
Removed the parking brake drawbar pull test procedures from SAE J1626 and incorporate as appropriate into SAE J1729 and SAE J360. The SAE J1626 will only reference these two procedures as appropriate when required.
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b
Added SAE J2503 as reference.
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c
Removed SAE J1626 specific section numbers based on the upcoming and ongoing revisions with this document.
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d
Revised Section 5.3 to agree with SAE J1626 burnish snub procedure changes with the transmission in the highest gear appropriate for 40 mph.
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e
Removed pressure-applied/mechanically locked actuators from Section 5.11.
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f
Changed title from Commercial Vehicle to Truck and Bus.
-
g
Other editorial changes for clarity as appropriate.
Recommended Content
| Ground Vehicle Standard | Parking Brake Drawbar Pull Test Procedure - Truck and Bus |
| Ground Vehicle Standard | Brake Force Distribution Test Procedure - Trucks and Buses |
| Ground Vehicle Standard | Recommended Practice for Braking, Stability, and Control Performance Test Procedure for Air-Brake-Equipped Truck-Tractors |
Topic
Data Sets - Support Documents
| Title | Description | Download |
|---|---|---|
| Unnamed Dataset 1 | ||
| Unnamed Dataset 2 |
Issuing Committee
Truck and Bus Brake Systems Committee
The Truck and Bus Brake Systems Committee of the Truck and Bus Brake and Stability Control Steering Committee is responsible for developing, reviewing, and approving recommended practices, standards, and information reports related to brake systems of trucks, tractor-trailer combinations and buses over 10,000 lbs (4500 Kg) GVWR designed primarily for highway use.
Reference
| Number | Title |
|---|---|
| 49CFR571.105 | This document is not part of the subscrption. |
| 49CFR571.121 | This document is not part of the subscrption. |
| J1452_201811 | Trailer Grade Parking Performance Test Procedure |
| J1626 | This document is not part of the subscrption. |
| J2503 | This document is not part of the subscrption. |
| J360_202008 | Truck and Bus Grade Parking Performance Test Procedure |
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