Why are my tandems not sliding?
Get under your rails and eyeball straight down front to back under there. If there is any flex, twist, out of line or tandems crooked you are not going to be sliding them today. Check all 4 of your pins when you pull the widowmaker bar. Make sure all your pins are in as in all the way in free to slide all around.
Which way do I slide my tandems?
To shift weight off the drive axles and onto the trailer tandems, you slide the trailer tandems forward toward the front of the truck. With 6 inch spacing you’re moving 400 pounds per hole so you need to move 4 holes to shift a minimum of 1,400 pounds (400 x 4 = 1,600).
What is the maximum length your tandems Cannot exceed?
Just so you know, kingpin laws, what you’re referring to as bridge law, only apply to trailers OVER 48 feet long. A 48 or under can have tandems anywhere.
How much weight does each notch distribute when sliding the tandem?
The amount of weight moved per hole will vary between manufacturers, but generally speaking it’s around 500 pounds per hole.
Which way do you slide tandems?
To shift weight off the drive axles and onto the trailer tandems, you slide the trailer tandems forward toward the front of the truck.
How do you use a tandem stopper?
HOW IT WORKS:
- Insert the Sta-Rat Tandem Axle Stopper in the hole next to where you want the tandem retainer pins to catch.
- Lock your trailer brake, and release your tractor brakes.
- Slide trailer forward or reverse until the tandem hit the Stopper.
- Release your brake and remove the Stopper.
Can you pull two 53 foot trailers?
Big-double trucks-a tractor pulling two trailers, each 40 to 53 feet long-are legal in Arizona, Colorado, Idaho, Kansas, Montana, Nevada, North Dakota, Oklahoma, Oregon, South Dakota and Utah. They also are legal in Florida, Indiana, Massachusetts, New York, and Ohio but only on those state`s toll roads.
What is the bridge law on semi trailers?
The state of California requires all tractor-trailer combinations to meet the King Pin to Rear Axle (KPRA) law. What does that mean to professional drivers? The center of the rear axle on all trailers must be at the 40-foot mark or shorter and must not weigh over 34,000 pounds on the trailer axles.
What is the max weight on the drive axle and trailer axle?
General Rule. 35550. (a) The gross weight on any one axle shall not exceed 20,000 pounds, and the gross weight upon any one wheel, or wheels, supporting one end of an axle, shall not exceed 10,500 pounds.
When do you need to slide your tandems forward?
If the trailer axles are too heavy you may need to slide the tandem further to the back to shift weight forward on the tractor axles. If the trailer tractor axles are too heavy and the tail of the trailer is light, you can slide the tandems forward which shifts the weight back on the trailer axles. An example of the process of sliding your tandems.
Why do tandems not slide when wheels are rolling?
Tandems Won’t Slide Because Wheels Are Rolling Sometimes you might try to slide your tandems and wheels turn because the brakes are not holding. In this case you may need to adjust your brakes.
What to put at the back of a sliding tandem?
To help keep the wheel from rolling you can put a large rock, 2 x 4 or wheel chock at the front or back of the wheel on both sides of the same axle. Remember if you are trying to slide forward you need the wheel block at the back of the wheel.
What’s the weight limit for a tandem trailer?
Trailers with 2 axles are tandem axle trailers. The federal tandem axle weight limit on the highway is 34,000lbs. Sometimes sliding your tandems is necessary in order to get down to the legal weight limit.
https://www.youtube.com/watch?v=toiDPxrsBCQ