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Why do experienced mechanics rub the pads together before installing new pads?

  • October 14, 2022
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It is a pleasure to see the master’s work: no unnecessary movement or hiccups, clear, fast and accurate. Every gesture is appropriate. It is not only possible, but

It is a pleasure to see the master’s work: no unnecessary movement or hiccups, clear, fast and accurate. Every gesture is appropriate. It is not only possible, but also necessary to go to the service shop to see the real pros, because repair is a sacrament, with its own rituals and inexplicable actions. The AvtoVzglyad portal tells about one of these.

Official dealers, to whose services car owners have been stoically accustomed for so many years, were not eager to let lazy spectators into the repair shop. Such as safety rules and other excuses that are not legally defined in any way. Therefore, the really interested people put on a vest and helmet and went to marked and strictly specified places, from which it was possible to examine in detail the repair of a personal car.

And there is always something to look at: the use of special tools, various tricks and dexterity of professional “mechanics”, which spare parts and in what quantity, so that nothing “falls around the corner”. By the way, about the tricks: even such a simple act as changing brake pads sometimes becomes an action if a master with talent is taken for it.

Well, what seems interesting there: I unscrewed the wheel, threw the bracket off, loosened it and removed it, then put new ones in. Well, he will lubricate where necessary, look at the guides, clean with a special “slurry”. But no, there is another curious detail: an experienced master will certainly – at a reflex level – rub the pads together before inserting them into the mechanism.

I would like to catch up on magic and secret meaning, but the essence of the action lies in a rather simple and understandable effect that is only for professionals: new pads always crack, especially in the first kilometers after installation. Of course, a client who has paid a lot for the work and the “original part” will be outraged by such behavior and mentally invent a million kinds of cheats that he has just been subjected to. And to avoid this, mechanics and tinder pads, “remove” the top layer – it is he who can make an unpleasant noise when in contact with the disk. As the saying goes, a satisfied old customer brings two new ones. So business and nothing more.

But using a brake cleaner when replacing it is an extremely important procedure necessary to ensure safety. It is a fact that new brake pads and discs are often treated with transport oil or other lubricants to prevent rust and deterioration of appearance from improper storage.

This lubricant, if not washed away with this brake cleaner during installation, can easily contribute to disc slip in the brake pad grip, which in turn will lead to an increase in braking distance and subsequent collision. So if suddenly there was no special composition on the mechanic’s table, it’s a bad sign, even if he rubbed the pads together.

Photo: theautowarehouse.com

Official dealers, to whose services car owners have been stoically accustomed for so many years, were not eager to let lazy spectators into the repair shop. Such as safety rules and other excuses that are not legally defined in any way. Therefore, the really interested people put on a vest and helmet and went to marked and strictly specified places, from which it was possible to examine in detail the repair of a personal car.

And there is always something to look at: the use of special tools, various tricks and dexterity of professional “mechanics”, which spare parts and in what quantity, so that nothing “falls around the corner”. By the way, about the tricks: even such a simple act as changing brake pads sometimes becomes an action if a master with talent is taken for it.

Well, what seems interesting there: I unscrewed the wheel, threw the bracket off, loosened it and removed it, then put new ones in. Well, he will lubricate where necessary, look at the guides, clean with a special “slurry”. But no, there is another curious detail: an experienced master will certainly – at a reflex level – rub the pads together before inserting them into the mechanism.

I would like to catch up on magic and secret meaning, but the essence of the action lies in a rather simple and understandable effect that is only for professionals: new pads always crack, especially in the first kilometers after installation. Of course, a client who has paid a lot for the work and the “original part” will be outraged by such behavior and mentally invent a million kinds of cheats that he has just been subjected to. And to avoid this, mechanics and tinder pads, “remove” the top layer – it is he who can make an unpleasant noise when in contact with the disk. As the saying goes, a satisfied old customer brings two new ones. So business and nothing more.

But using a brake cleaner when replacing it is an extremely important procedure necessary to ensure safety. It is a fact that new brake pads and discs are often treated with transport oil or other lubricants to prevent rust and deterioration of appearance from improper storage.

This lubricant, if not washed away with this brake cleaner during installation, can easily contribute to disc slip in the brake pad grip, which in turn will lead to an increase in braking distance and subsequent collision. So if suddenly there was no special composition on the mechanic’s table, it’s a bad sign, even if he rubbed the pads together.

Source: Avto Vzglyad

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