I've seen them do this in movies and at truck stops. It seems they usualy use a basesall bat to do this.
2007-08-07 12:16:25 · 7 answers · asked by Anonymous in Cars & Transportation ➔ Other - Cars & Transportation
It is a quick and easy but lazy way to check tire pressure. If there is air in the tire the bat or stick or club will bounce easily and if the tire is flat (no air) it will not bounce much and will give a sound like a thud when it is smacked.
Since the duel tires ride side by side, one tire can be flat and still on the wheel or rim and will not appear flat since the tire right next to it will hold it off the ground.
The tires need to be at 90 PSI to be safe and to get the maximum miles per gallon but there are smaller newer tires that hold up to 150 PSI and are even more susceptable to low tire pressure and will fall apart faster and look low or flat when low on air.
The most common casue for tire failure on any vehicle is low tire pressure. The heat builds as the steel belt and polyester cords rub against each other and the rubber falls apart and tire failure will occur faster the lower the pressure is from the maximum or recommended pressure for any particular tire.
Good Luck!
2007-08-07 12:33:40 · answer #1 · answered by CactiJoe 7 · 1⤊ 0⤋
When you have dual wheels, it is harder to spot a low or flat tire. "Thumping" a low or flat tire will give you a different sound and feel than a properly aired tire. If you drive on a low tire, it will blow. At almost $400 each, I thump my tires every time I stop, and check the air with a gauge a couple of times a week.
2007-08-07 12:25:59 · answer #2 · answered by J.R. 6 · 2⤊ 0⤋
This one isn't so transparent reduce. Depending at the situations, it might be dominated in basic terms unintentional (that means no person is at fault) or fault be located at the truck driving force (or the organization who owns it) The exceptional direction of movement might were to take the plate quantity and touch the police to have the procedure began. Without it, it's not viable to do whatever extra.
2016-09-05 11:03:27 · answer #3 · answered by ? 4 · 0⤊ 0⤋
They hit the tires for tire pressure.I use to drive semi's and we always checked the pressure this way with a metal pipe.If the pipe bounced back that meant good tire pressure.
2007-08-07 12:33:06 · answer #4 · answered by Bud R 2 · 1⤊ 0⤋
To check and make sure they have plenty of air in them. They are alot harder than a car tire.
2007-08-07 12:21:48 · answer #5 · answered by Anonymous · 1⤊ 0⤋
to check air pressure
2007-08-07 12:22:33 · answer #6 · answered by Anonymous · 1⤊ 0⤋
to make sure they have enough air in their tires
2007-08-07 12:24:18 · answer #7 · answered by Anonymous · 1⤊ 0⤋