Park brake question

[MikeandClaudia]

I accused my DW of writing under the name of "MSHappyCampers" because this is EXACTLY the same sort of question she would ask.

She once turned to me and asked, "If birds fell asleep when the were sitting on a tree branch, would they fall off?" She was ELATED a few years later when she saw a program on TV that answered that question. Their muscles are arranged so that when they clench the tree limb, they are "locked" into place.

Scary!

[slickest1]

Originally Posted by BillJinOR

The spring brakes are not part of the anti lock system . Once you lose the air pressure that holds them back they apply! , and full force. Loosing air pressure by failure of the air system or pulling the brake valve is no difference. They may not lock up depending on the weight and force on them but you will stop .. And quickly. It's important to understand the air brake system and how different it is .

Thinking about that and you are right, the park brake would not be part of the anti lock system.

[cwit]

If your brakes are adjusted right and the tarmack is dry they would lockup and at sixty they would flat spot. When you see black skid marks at 20 mph I would never want to do it at 60. We used to and they still do this test on every school bus in N.Y. If someone did this at 60 and you did not skid then you need a brake adjustment bad.

[Boyle908]

35 ft HR Neptune

70mph (15 north of Las Vegas) rolled over a big chunk of truck tire (couldn't avoid it), ripped off one airline at the back axle (inside right) both rears came on, decelerated rapidly but very manageable