# How To Adjust Slack In Jost Fifth Wheel

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A fifth wheel is a type of trailer hitch that allows for greater stability and maneuverability when towing a heavy load. The Jost fifth wheel is a popular choice among truck drivers due to its durability and reliability. However, like any other mechanical component, it requires regular maintenance and adjustments to ensure optimal performance. In this article, we will discuss how to adjust slack in a Jost fifth wheel.

## Step 1: Identify the Problem

The first step in adjusting slack in a Jost fifth wheel is to identify the problem. Slack refers to the amount of play or movement between the trailer and the truck. If you notice that your trailer is moving around too much or if you hear any unusual noises while driving, it may be time to adjust the slack.

## Step 2: Locate the Adjustment Points

Once you have identified the problem, the next step is to locate the adjustment points. The Jost fifth wheel has several adjustment points that can be used to tighten or loosen the slack. These include the kingpin lock, the top plate, and the bottom plate.

## Step 3: Adjust the Kingpin Lock

The first adjustment point is the kingpin lock. The kingpin lock is located on the front of the fifth wheel and is responsible for securing the trailer to the truck. To adjust the slack, you need to loosen the kingpin lock by turning it counterclockwise until you feel some resistance. Then, tighten the lock by turning it clockwise until you hear a click.

## Step 4: Adjust the Top Plate

The next adjustment point is the top plate. The top plate is located on the back of the fifth wheel and is responsible for supporting the weight of the trailer. To adjust the slack, you need to loosen the top plate by turning it counterclockwise until you feel some resistance. Then, tighten the plate by turning it clockwise until you hear a click.

## Step 5: Adjust the Bottom Plate

The final adjustment point is the bottom plate. The bottom plate is located on the front of the fifth wheel and is responsible for supporting the weight of the trailer. To adjust the slack, you need to loosen the bottom plate by turning it counterclockwise until you feel some resistance. Then, tighten the plate by turning it clockwise until you hear a click.

## Conclusion

In conclusion, adjusting slack in a Jost fifth wheel is an important maintenance task that should be performed regularly to ensure optimal performance and safety while driving. By following the steps outlined in this article, you can easily adjust the slack in your Jost fifth wheel and keep it running smoothly for years to come.