From:                              Idealease <>

Sent:                               Friday, October 31, 2014 3:00 PM


Subject:                          Idealease Safety Bulletin - Drivers and Tires!



Idealease Safety Bulletin






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How Drivers Can Impact Tire Cost and Tire Safety


Next to fuel, tires have been and will continue to be the #1 maintenance issue facing fleets today. Drivers can have an enormous impact on your tire expenses and their safety during a pre-trip inspection and  while they are on the road. During the pre and post trip inspection, it is important for drivers to visually inspect tires for any sign of irregular wear, cuts, snags, and punctures; and report that information to the maintenance department either directly or through a DVIR. But what about checking the tire air pressures during the walk-around inspection? It does take time to check the air pressure on 6 to18 tires and how does the driver know that the pressure gauge he's using is even accurate? After checking the air pressure, it is also possible that a valve core can stick causing the tire to lose air. The driver, of course, would need to know what the recommended air pressure is for steer, drive, and trailer tires. Many fleets have different specs for air pressure depending on wheel position. Even if the driver completes these checks, what if he (or she) finds that the inside dual drive tires are all 10 PSI too low. If the driver is on the road, will they actually take the vehicle to a truck stop to get air? The driver does not own the vehicle so why should he care if the tire is 10 PSI underinflated. This is exactly why it is so important to educate your drivers upon hire and during employment about tire maintenance and safety.  Most drivers have no idea that the tires on a tractor/trailer unit may have cost over $7,500. During new driver orientation and safety meetings, drivers need to hear about tires and how they can influence:

  • safety of operating the CMV
  • tire removal mileage
  • fuel economy
  • retreadability
  • tire related roadside service calls 

Drivers must fully understand that their jobs depend on helping their employer do everything in their power to get the most out of their $6000 tire investment. If the driver understands that there is a direct correlation between running tires underinflated and fuel economy he/she could save the company close to $1000 per year in fuel alone. There's more that the driver can do: If the driver, in a pre/post trip inspection can identify a possible vehicle alignment condition based on steer tire irregular wear, that tractor could be fixed and the tires saved from early removal. And his driving habits matter as well - if the driver does not accelerate aggressively and makes smooth turns, tires will last a lot longer as the tread rubber will not be scrubbed off as quickly.  Striking curbs is also a leading cause of ending a tires life prematurely. Many fleets today recognize the role the driver can play in maximizing their tire budget. Most have some sort of incentive program for those drivers who can generate the most miles on their tires and can consistently get the best fuel economy by keeping their tires properly inflated ALL the time. Having a program to educate drivers on these issues can save your company in a very short time.


Measuring Tire Tread Depth

Tread depths need to be checked and recorded because DOT has a legal limit -4/32" for steer tires and 2/32" of rubber for drive and trailer tires. That means that if any spot in the major grooves of a steer tire are found to be 4/32" or less, that tire must be removed from service. However, it can either be retreaded or moved to the trailer and run down to 2/32" minimum before entering the retreading process. Drive tires would be required to be removed from service or retreaded when any major groove reaches 2/32" of rubber to be safe. Most fleets have found over the years that running the tire down to 2/32" will reduce the number of tire casings that are acceptable for retreading
because with so little rubber to protect the casing, cuts, punctures, and stone drilling down to the steel belts becomes a problem. To protect your 

fleet's tire investment, it is better to remove the tire in the 6/32" - 8/32" range to maximize your retreadability.


The last tip about measuring tread depth: never measure in the decoupling groove which is found in many steer tire designs to reduce irregular wear. This outside decoupling groove is sometimes known as a PDG groove (Pressure Distribution Groove) and they may be very deep or may be very shallow-but it is not the same depth as the major tire grooves.



October 31, 2014




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Time to Fall Back...Daylight Savings Time Changes Sunday!


Daylight savings time will "fall back" at 2:00 a.m. on Sunday, November 2nd.

Make sure that all of your drivers are aware that the change to daylight savings will occur. Caution route drivers especially that the amount of daylight will change according to their stops with the change. An intersection or street can present different challenges to drivers with one hour change in the position of the sun. One hour of time difference can present unique changes to a driver who is on a route.



How does a driver log Daylight Saving Time?


There are no "official" guidelines for logging when the time changes. What most drivers do is simply drop a line down to the remarks section of the log to indicate the time change. So at 02:00 AM, Sunday morning, drop a line down and write something like, "Daylight saving." It should not affect drivers' hours because they still must comply with the 11-, 14- (or 10-, 15-), and 60/70-hour rules. These rules are not dependent on what the clock reads; rather they depend on how much time the person actually worked/drove.

When you "gain" an hour in the fall, your log for that day should include 25 hours of activity, because you repeat the hour from 1:00 a.m. - 2:00 a.m. The log needs to show what you did for that hour, so enter a note indicating your activity and any changes in duty status. That hour must be included when calculating compliance. 






The Idealease Safety Bulletin is provided for Idealease affiliates and their customers and is not to be construed as a complete or exhaustive source of compliance or safety information. The Idealease Safety Bulletin is advisory in nature and does not warrant, guarantee, or otherwise certify compliance with laws, regulations, requirements, or guidelines of any local, state, or Federal agency and/or governing body, or industry standards.



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