How do you adjust a loose fifth wheel?

First close the fifth wheel on a standard 2” kingpin or a 2” diameter shaft inserted vertically. Push on the wedge stop rod. It should move in 1/4” with hand pressure, then spring back out. To obtain a proper setting, turn the wedge stop rod clockwise to reduce the gap and counter-clockwise to increase it.

How do you adjust Fontaine without a slack 5th wheel?

Turning the adjustment rod clockwise (into the fifth wheel) will decrease the amount of travel of the wedge and increase the slack in the fifth wheel lock. Turning the adjustment rod counter-clockwise (out of the fifth wheel) will allow more travel of the wedge and reduce the slack in the fifth wheel lock.

How much play should a fifth wheel have?

There is normally a little play between the jaws and the king pin, 3/8 inch to 1/2 inch is a normal amount of play. Unless you have a cushioned pin box you will experience what you are describing.

Where do you put the fifth wheel on a semi?

Avoiding damage to the tractor/sleeper; 4. Avoiding damage to the trailer/landing legs. It is Fontaine’s recommendation that the fifth wheel should always be located in front of the rear axle or bogie centerline of the rear tandem.

How often should you grease your fifth wheel?

Ideally, most tractor trailers should be manually greased at all lube points at around 12,000–24,000 miles and more frequently on the fifth wheel.

How much play can a fifth wheel have?

What makes the Jost jsk37u fifth wheel so special?

This series features the original locking mechanism that all other JOST fifth wheels are based on and sets the industry standard for fifth-wheel construction and functionality. Designed with safety and operator efficiency in mind, the features included in the JSK37U line are included in all other JOST fifth wheel products.

What are the locks on a Jost fifth wheel?

JOST’s signature 3-point locking system features three locks with just four moving parts to ensure ultimate safety & simplicity. Innovative anti-high coupling lugs prevent drivers from high coupling by either guiding the kingpin into the jaws or pushing it up and over. This allows for a clear indication when the fifth wheel is properly coupled.

Why are Jost fifth wheel cushion rings replaceable?

Designed with safety and operator efficiency in mind, the features included in the JSK37U line are included in all other JOST fifth wheel products. A replaceable cushion ring reduces the lifetime cost of ownership. JOST parts across product lines ensure affordable, consistent product availability.

What’s the maximum weight of a Jost fifth wheel?

The JSK37U series has a maximum vertical rating of 50,000 lbs and a maximum horizontal rating of 150,000 lbs. Bracket Exchange Program: The JOST Bracket Exchange Program offers additional flexibility. JOST will send a new bracket to you, in return of your current bracket. Please call Customer Service at 800-253-5105 to learn more.

How do you adjust a loose fifth wheel? First close the fifth wheel on a standard 2” kingpin or a 2” diameter shaft inserted vertically. Push on the wedge stop rod. It should move in 1/4” with hand pressure, then spring back out. To obtain a proper setting, turn the wedge stop rod clockwise to…