To adjust the emergency brake on this truck, you need to adjust the rear drum brakes. This usually involves:
1. Engage the parking brake: Make sure the parking brake is fully engaged. This helps to keep tension on the emergency brake cable.
2. Locate the adjustment mechanism: This is usually found on the back of the backing plate of each rear wheel. It's a star wheel or similar mechanism that you'll rotate. You'll need to remove the wheel to access it.
3. Adjust the star wheel: Use a suitable tool (often a flathead screwdriver or a specialized star wheel adjuster) to carefully turn the star wheel. Turn it clockwise to tighten the shoes. Do this a small amount at a time (a few clicks or turns).
4. Test and repeat: After a few turns, release the parking brake, and then re-engage it. If it's not holding well enough, repeat steps 3 and 4 until you achieve the desired holding power. You want sufficient holding power to keep the truck from rolling on a moderate incline but not so tight that the brake shoes drag.
5. Check for dragging: After adjusting, spin the wheels by hand. If they're hard to turn, you've tightened the star wheels too much. Back them off slightly.
6. Reinstall the wheels: Once you have the desired brake performance, reinstall the wheels and test the parking brake on a gentle incline to confirm it works as it should.
Important Considerations:
* Wear appropriate safety gear: Wear safety glasses and gloves.
* Use the right tools: Improper tools can damage the adjustment mechanism.
* Don't overtighten: Overtightening the star wheels can lead to dragging brakes, reduced fuel economy, and premature wear on the brake system.
* If unsure, consult a professional: If you're not comfortable performing this task, it's best to take your truck to a qualified mechanic. Incorrect adjustment could lead to brake failure.
This process is general. The exact location and appearance of the star wheel might vary slightly depending on the specific model of your F-250. A repair manual specific to your year and model will provide diagrams and detailed instructions. You can find these manuals online or at auto parts stores.