Approximately once in every 6 months, with the vehicle off the ground and supported on jack stands, check the flexible hoses that connect the steel lines to the front and rear brake assemblies as these are vital components of the brake system, for cracks, chafing, leaks, and blisters etc. A well-done check needs a light and a mirror and if there is a damaged hose, it is more preferable to replace the hose with a new one. First off, free all the dirt that can be aired out from the hose ends then use the flare-nut wrench to free the tube nut in a way that the corners are not rounded off, and then free all bolts, clips or grommets that lock the hose. Remove the hose from the caliper and dispose off the sealing washers then connect the new brake hose by using new sealing washers and tightening the banjo fitting bolt to the right degree of torque. Installation is the reverse of removal, and tighten any slack out of the hose; also, make sure any suspension or steering components do not contact the hose while an assistant thumps the tire and turns the steering wheel lock to lock. When replacing brake lines, always use the right parts with no use of copper tubing, obtain steel brake lines from a dealer or auto parts store. There are available Ready made brake lines with flared tube ends but with fittings pre-installed and the tubing can be bent to the required shapes with the help of a tubing bender. It should also be pointed out that the new line should be well grounded in brackets and should be located a safe distance from moving or hot components. Before normal operation carry out gentle testing of brakes after installation, replenish the master cylinder, add fluid and bleed the system as required.