Brake hoses should be checked at least twice a year.
To prevent sudden failure of the brake system, carefully check the condition of all pipes and connections, paying particular attention to the following:
Metal pipelines must be free from scratches and corrosion and must be located away from sharp edges that could damage them.
The brake hose must be flexible, free of tears and cracks, and must be firmly embedded in the ends. The threads of the hose ends must not be damaged. If the hose swells when you press the brake pedal, then the cords are broken. If any of these defects are found, the hose must be replaced. Mineral oils and greases that dissolve rubber should not get on the hoses.
All piping fastening brackets must be intact and well fastened. Loose fastening or destruction of the brackets leads to vibration of the pipelines, which causes them to break.
Leakage of a brake liquid from connections of the main cylinder with pipelines and a tank is not allowed.
If faults are found, replace damaged parts with new ones. Replace flexible hoses, regardless of their condition, with new ones after 120 thousand kilometers or after five years of vehicle operation to prevent sudden ruptures due to rubber aging. The brake hose rubbing against the suspension parts wears out and eventually fails.
Use a mirror and a backlight to check.