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Properly inflated or acceptable tread-level tires on a semi-tractor and trailer greatly increase fuel efficiency, steering safety, tire wear, and emergency handling, as well as help avoid infractions during a Department of Transportation inspection or worse.
Tools Required
Despite commonly held beliefs, using a rod or stick, commonly called a thumper to hit each tire is not the proper, effective, or accurate way to check tire pressure. The under-inflated tire may not sound different enough from its fully inflated neighbor to be noticed with a thumper, but the few pounds’ difference in air pressure often differentiates between stopping safely in an emergency and causing a traffic fatality.
You need two items to check air pressure properly:
A working pressure gauge, and
A working air hose, if needed.
How to Check Tire Pressure
Before checking tire pressure, know the proper PSI or pounds-per-square-inch pressure setting for each tire. If necessary, have available the pressure card your company provides or read the information provided on the tire, itself.
Use a properly operating tire pressure gauge and evenly press the valve end onto the tire stem of the tire. If the initial hissing sound does not fade, the gauge is not properly positioned. Adjust as necessary.
The increment scale should pop up and hold in position, allowing you to read the current PSI. If the tire has too much air, gently depress the tire stem, allowing some air to escape. Repeat the test until the tire holds the proper amount of air pressure.
If the tire doesn’t currently hold enough air, gently attach and activate a working air hose. If the initial hissing doesn’t disappear, adjust the fit of the air nozzle on the stem. Periodically check air pressure until each tire reaches its proper PSI.
Note: The PSI settings for steer tires are often different than for drive or trailer tires. Do not inflate all eighteen tires to the same pressure level.
Completion
When a tire holds the proper pressure, replace the air stem cap firmly on the tire. Return the air hose to its holder or coiled out of a travel lane. Secure the tire gauge in the tractor for easy use next time.
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What does it mean when the abs trac and check tire pressure lights are on?
It probably means your tired pressure is low and your traction control is not working properly (or thinks it isnt) because of the low tire pressure.
How do check if you have the right tire pressure in a tire?
Read the vehicle data plate for tire pressures, and use a tire gauge to see if the tires are at that pressure.
How would one check tire pressure?
One can check tire pressure using a tire air pressure gauge. This product comes relatively cheap and can be purchased from a car dealer or auto repair shop.
What is the tire pressure for a 17250 tire 1997 ford pickup?
Check to see if there is a label on the door post or check with tire retailer
Why does your car say check tire pressure?
Because it's sensing incorrect pressure. To do this properly don't rely on the built in system - buy g good quality round tire gauge and check all your tires at least once a week. -It only takes minutes, but may save your life.
How do you tell tire pressure by striking side of tire?
You really can't tell the exact pressure. All striking the side will do it tell you that there is pressure in the tire and enough experience striking a tire that is properly inflated will give you an idea if it is close to correct.
How do you Turn off tire pressure light on 2005 Lexus?
First of all check the spare tire pressure.
What is the correct tire pressure for a 2008 Chevy suburban?
The correct tire pressure depends on the tire. The max pressure will be listed on the sidewall of the tire. I usually run about 5lbs less than the max. Always check your tire pressure when the tires are cold.
When a tire is under inflated what part of the tire grips the road?
When a tire is properly inflated it will be level to the ground. Over inflated and the middle of the tire has the most pressure on the ground. Under inflated and the sides of the tire have the most pressure on the ground.
Why does your check tire pressure light come on when it gets cold outside?
Because when the air in a tire gets colder, it contracts and that reduces the pressure in the tire.
What tire pressure do you put in a 2002 hyundai?
Check the label on the driver's door jamb or in the owners manual for the proper pressure. The pressure listed on the side wall of the tire is the max safe pressure of the tire only.
What is the tire pressure on a 1989 Honda trx 300?
Proper tire pressure is found embossed on the sidewall of the tire itself. Unfortunatly it is not on the tire, the tire says to check owners manual for correct tire pressure, which is often the case with low pressure tires. I have a Clymer manual and it has a misprint showing the lug nuts for the tire pressure...very frustrating!!
