Tools Required

J 29803-A ISO Flaring Kit

Important: Do not use ISO flares for the rear brake pipe connections to the rear wheel cylinders.

1. Obtain the recommended tubing and steel fitting nuts of the correct size. Use the outside diameter of the tubing in order to specify the size.
2. Cut the tubing to length. Determine the correct length by using string in order to measure the old brake pipe. Add 3 mm (0.125 in) for each ISO flare.
3. Cut the end square.
4. Chamfer the inside and outside diameter of the tubing. Use a de-burring tool.
5. Remove all traces of lubricant from the tubing.
6. ISO flare the tubing ends. Use the J 29803-A .
7. Install the fittings on the tubing.



8. Clamp the flaring tool body (1) in a vise.
9. Select the correct size collet and forming mandrel (3) for the tube size used.
10. Insert the proper forming mandrel (3) into the tool body (1).
11. Hold the mandrel (3) in place with your finger.
12. Thread in the forcing screw (2) until the screw makes contact and begins to move the forming mandrel (3).
13. When contact is made, turn back the forcing screw (2) one complete turn.



14. Slide the clamping nut (1) over the tubing into the correct collet (2). Leave approximately 19 mm (0.750 in) of the tubing extending out of the collet (2).
15. Insert the tubing into the tool body. Ensure that the tube end contacts the face of the forming mandrel.
16. Tighten the clamping nut (1) into the tool body very tight in order to prevent the tube from pushing out.
17. Wrench tighten the forcing screw in until the screw bottoms. Do not overtighten the forcing screw or the flare may become oversized.



18. Back the clamping nut out of the tool body. Disassemble the clamping nut and collet.
19. The flare is now ready for use.
20. Bend the new brake pipe in order to match the old pipe. Use a tube bender.

•	Maintain a minimum clearance of 19 mm (0.750 in) from all moving components, unless the brake pipe is clipped to the component.

•	Maintain a minimum clearance of 13 mm (0.50 in) from all vibrating components, unless the brake pipe is clipped to the component.

•	For armor wrapped pipe, contact is permissible if there is no relative movement between the pipe and the contact surface.