How far back is the KingPin on a 53-foot trailer?
KingPin is 3′ (not 3″) from the edge of the trailer front. This has been a “standard” for 53′ trailers since national adoption in the early 90s. Marc, the movable, adjustable fifth-wheel has no bearing on this at all, distance for setting the tandem is measured from the KingPin which is fixed.
How far back can I have my tandems?
When the distance between the first axle of your tandems is 35 feet from the rear axle on your tandems to the last axle of your trailer tandems, you will have to reduce the amount of weight that you load onto your truck.
Can you replace spindles on a trailer?
Expert Reply: To replace a spindle, the old one would need to be cut off, and the new one welded into place. This is NOT a job for the do-it-yourselfer. The new spindle must be absolutely square with the axle in order to prevent premature tire wear and wheel tracking problems.
Can you fit 30 pallets on a 53-foot trailer?
You can fit about 30 nos 42”x48” pallets in a standard 53′ trailer, provided you turn them. Or, 26 nos 48”x48” skids.
How many skids are in a 53 trailer?
How many pallets in a 53′ trailer? When understanding 53-foot trailer dimensions and weight. Calculations show a 53-foot trailer (636” long) can hold 13 pallets lengthwise, with an extra 1 foot. These wide trailers fit two rows of pallets.
Where should my tandems be?
Some states are picky and want your trailer tandems to be at a specific distance from your kingpin. CA requires 40′ distance between the kingpin and the center of the rear trailer axle. If the distance from the center of the rear axle and the kingpin is 41′ then you are illegal to drive in CA and will be ticketed.
Can I slide my tandems all the way back?
Tandem Axles Tractor tandems are generally just referred to as “drives” which is short for “drive axles”. When sliding your tandems all the way to the rear, you eliminate almost all tail swing, which is why it is a preferred method used by some drivers when backing into tight spots.
How much does it cost to replace a spindle?
Some Factors That Affect Spindle Repair Cost For instance, a damaged tool interface may add between $700 and $1,600 depending on the size and style. Damaged bearing journals can add between $400 and $1,400. A damaged shaft can add $4,000, often doubling the cost of a base repair.
Are trailer spindles welded on?
Spindles are welded to the axle, so a do-it-yourself replacement may be out of the question for some trailer owners. As you can imagine, lubrication around the spindle is critical to keep the bearings spinning and to prevent the hub from making contact with the spindle’s surface.
How many pallets can fit on a 53 foot reefer?
Know How Many Pallets Fit in a 53-Foot Trailer A 53-foot trailer can fit up 26 pallets that measure 42” x 48”.
How far back should an axle be on a trailer?
To know how far back the axle needs to be moved, we want to subtract the trailer’s tongue weight from 10 percent of the total weight.
How do you know where to slide tandems?
By sliding the trailer tandems forward, you will put more weight on the trailer tandems and take weight off the tractor’s drive axles. Conversely, by sliding the trailer tandems toward the rear of the trailer, you will take weight off the trailer tandems and put more weight onto the tractor’s drive axles.
Why do truckers drivers slide tandems?
Why do shippers make you slide your tandems?
How much weight does each hole on tandem slide change?
You can estimate that you will move 250 pounds per hole for 4 inch spacing, and 400 pounds per hole for 6 inch spacing. This will help you estimate how many holes you’ll have to slide the trailer tandems to move the proper amount of weight necessary in order to get the axle weights legal.
How long does it take to change a spindle?
A quick turnaround for an emergency spindle repair job would be 24 hours, but the standard turnaround time for a straight repair is between 5-10 business days. In some unique cases, depending upon the need to make repairs or obtain new parts, a spindle repair job can take a few weeks.
What do spindles do?
Spindle fibers form a protein structure that divides the genetic material in a cell. The spindle is necessary to equally divide the chromosomes in a parental cell into two daughter cells during both types of nuclear division: mitosis and meiosis. During mitosis, the spindle fibers are called the mitotic spindle.
Can you weld a trailer axle?
Set your welder up so that you can lay a good hot penetrating weld (practice on some scrap steel) and fully weld around the spindle and axle tube. Fill the plug weld holes up until the weld is flush with the top of the axle tube. Let the axle cool down slowly – do not quench or spray with water!
How do you get a spindle out of a trailer axle?
Trailer spindles are welded directly to the axle so to remove one it just needs to be cut off completely using a torch or saw. Then to replace the spindle such as with the EZ Lube # TRU37FR that you were looking at it’s extremely important that it be done by a certified welder who is experienced with this type of job.
Why do semi-trailers have side skirts?
A side skirt, which fits between a semi-truck’s front and rear wheels, helps improve aerodynamics and is not intended for protection. Side skirts are usually made of fiberglass, aluminum or plastic, to give them flexibility, and reportedly improve fuel economy, which is why they’re used on large trucks hauling freight.
When did 53 trailers became legal?
In 1990, a truck safety law straightened out the state frameworks and paved the way for modern 53 foot trailers to operate across state lines without separate permits. Today, there are dozens of trailer types and hundreds of variations.