This apparently innocent shortcut may cause more clock time and disturb than technicians realize .
many Tire Business readers, I realize, are not technically prepare, but I suspect most of you understand that the common hydraulic brake systems your technicians service have two kinds of bathymetry. Steel tubing makes up the leo ‘s contribution of the hydraulic tour. interim, reasonably short rubberize hoses connect the sword lines to components such as bracken calipers .
The brake calipers travel up and down along with the suspension. therefore, the production line connecting a caliper to the lie of the brake system must be flexible—hence, the use of condom hose there.
Bạn đang đọc: Crimping brake hoses can be risky procedure
Rubber may suggest flimsiness, but make no mistake : The reinforce structure of a distinctive brake hose makes it strong and durable. It ‘s not rare for rubber brake hoses to last for many, many years .
Let ‘s get back to the servicing bay now. Replacing brake calipers is a very park job. This is the occasion where technical school are most likely to crimp rubber brake hoses. They do this strictly for speed and convenience.
Xem thêm: Wikipedia
beginning, a sealed come of bracken fluid always drains out of a brake hose when a technical school disconnects the hose from a caliper. Pinching the arctic hose stops brake fluid from leaking onto the floor or the technician .
second, crimping a rubberize brake hose prevents air from entering the rest of the hydraulic system. If a hydraulic system has air in it, the brake pedal feels spongy alternatively of firm when you apply the brakes. Pinching off that hose may eliminate the need to bleed the brakes after the brake problem. Or it may minimize the measure of time required to bleed the arrangement.
Xem thêm: Why Does Your Car Shake When You Brake?
Most times, techs get away with this crimp-down flim-flam because the hose springs back into form and then works fine. But sometimes crimping the hose damages the hosiery ‘s inner line and creates a little flap or bit of rubber eraser. When you apply the brakes, the beat allows the bracken fluid to operate the caliper and apply the brake pads .
When you release the brake pedal, that rubber eraser dither traps that brake fluid between itself and the caliper. Trapping the fluid keeps the brake pads applied. now the steering wheel on that corner of the car either wo n’t turn at all or else drags hard if it does turn. The lone solution here is to replace the brake hose—something that may not have been priced into the job .
Brake fluid surrogate is one of the single most important—not to mention overlooked—aspects of well brake care. Caliper substitution is an ideal time to flush the system with newly bracken fluid ( charge accordingly ). What ‘s more, outfitting each bay with a pair of cheap drip pans is a truly small expense and belittled inconvenience if it prevents needle brake hose damage .