The procedure is to inspect the area of brake pipe to be repaired or replaced, release the brake pipe to be replaced from the retainers as required, select an appropriate location to section the brake pipe if necessary, measure the length of the pipe to be replaced including all pipe bends, add to the measurement taken the appropriate additional length required for each flare to be created, cut the brake pipe squarely to the measured length, remove the sectioned brake pipe from the vehicle, select the appropriate size of brake pipe and tube nuts, as necessary, strip the nylon coating from the brake pipe end to be flared, if necessary, chamfer the inside and outside diameter of the pipe with the de-burring tool included in the J 45405, install the tube nuts on the brake pipe, clean the brake pipe and the J 45405 of lubricant, contaminants, and debris, loosen the die clamping screw of the J 45405, select the corresponding die set and install the die halves into the die cage with the full, flat face of one die facing the clamping screw, and the counterbores of both dies facing the forming ram, place the flat face of an unused die against the die halves in the clamping cage and hold firmly against the counterbored face of the dies, insert the prepared end of the pipe to be flared through the back of the dies until the pipe is seated against the flat surface of the unused die, remove the unused die, ensure that the rear of both dies are seated firmly against the enclosed end of the die cage, hand tighten the clamping screw against the dies, s20.elect the appropriate forming mandrel and place into the forming ram, rotate the hydraulic fluid control valve clockwise to the closed position and the body of the J 45405, operate the lever of the J 45405, rotate the hydraulic fluid control valve counterclockwise to the open position to allow the hydraulic forming ram to retract, insert the finishing cone into the forming ram, rotate the hydraulic fluid control valve clockwise to the closed position and the body of the J 45405, operate the lever of the J 45405, rotate the hydraulic fluid control valve counterclockwise to the open position to allow the hydraulic forming ram to retract, loosen the die clamping screw and remove the dies and pipe, lightly tap the dies until the die halves separate, inspect the brake pipe flare for correct shape and diameter (a), shape the new pipe with a suitable brake pipe bending tool, install the pipe to the vehicle with the appropriate brake pipe unions, as required, secure the brake pipe to the retainers, bleed the hydraulic brake system, and then inspect the brake pipe flares for leaks by starting the engine and applying the brakes.
By BobGM Specialist
01/11/2022