Brake Hose/Line: Service and Repair

ISO Flare:

Tool Required

J 29803-A ISO Flaring Kit

CAUTION: Always use double walled steel brake pipe when replacing brake pipes. The use of any other pipe Is not recommended and may cause brake system failure. Carefully route and retain replacement brake pipes. Always use the correct fasteners and the original location for replacement brake pipes. Failure to properly route and retain brake pipes may cause damage to the brake pipes and cause brake system failure.

Installation Note

When removing a brake pipe or hose, be sure to note its position on the vehicle. Install the replacement pipe or hose in the same position.


ISO Flare Procedure

1. Obtain recommended tubing and steel fitting nuts of correct size. (Outside diameter of tubing is used to specify size.)

2. Cut tubing to length. You can determine the length needed by measuring the old pipe using a string and adding 3.2 mm (1/8 inch) for each ISO flare.

3. Install fittings on tubing before starting flare.

4. Chamfer the inside and outside diameter of tubing with the deburring tool. Then flare the tubing ends using an ISO flaring tool, such as J 29803-A. Follow the instructions included with the tool.

5. Carefully bend tubing to match old pipe. Clearance of 19 mm (3/4 inch) must be maintained between the pipe and all moving or vibrating parts.