How to Remove the Rear Brake Drum on Isuzu NPR HD Trucks

Nov . 10, 2024 20:09 Back to list

How to Remove the Rear Brake Drum on Isuzu NPR HD Trucks

How to Remove the Rear Brake Drum of Isuzu NPR HD A Step-by-Step Guide

Maintaining your Isuzu NPR HD is crucial for its longevity and performance, particularly when it comes to the braking system. One essential maintenance task is the removal of the rear brake drum, which can become necessary for various reasons such as brake pad replacement or inspection of the brake assembly. This guide will walk you through the process of removing the rear brake drum on an Isuzu NPR HD.

Tools and Materials Needed

Before you start the process, ensure you have the following tools and materials ready - Jack and jack stands - Lug wrench - Brake drum puller (if necessary) - Brake cleaner - Gloves and safety goggles - Torque wrench - Ratchet and socket set

Step 1 Safety First

Before you begin, make sure you are working in a safe environment. Park your Isuzu NPR HD on a level surface and engage the parking brake. Wear safety goggles and gloves to protect yourself from debris and sharp edges.

Step 2 Raise the Vehicle

Using a jack, lift the rear of the vehicle. Once elevated, secure it with jack stands to ensure it remains stable while you work. It is crucial not to rely solely on the jack for support.

Step 3 Remove the Rear Wheels

Using a lug wrench, loosen the lug nuts on both rear wheels before lifting the vehicle. Once the vehicle is securely elevated, remove the lug nuts completely and take off the rear wheels. This will provide you with unobstructed access to the brake drum.

Step 4 Inspect for Retaining Screws

Once the wheels are off, inspect the brake drum for any retaining screws that may be holding it in place. These screws can usually be found on the drum’s face. If they exist, use the appropriate socket to remove them.

isuzu npr hd rear brake drum removal

Step 5 Check the Brake Adjustment

Before attempting to remove the drum, check if there is an adjustment mechanism for the brake shoes. If so, it’s advisable to back off the adjustment to facilitate easier removal of the drum. This is typically accomplished via an access hole in the backside of the brake assembly.

Step 6 Remove the Brake Drum

Now, it’s time to remove the drum. Gently pull it straight off the wheel hub. If it doesn’t come off easily, there may be rust or other debris. In this case, you can tap lightly around the perimeter of the drum with a rubber mallet. If it still does not budge, a brake drum puller might be necessary. Attach the puller and turn it carefully until the drum releases from the hub.

Step 7 Clean and Inspect

Once the drum is removed, take the opportunity to clean the brake surfaces using brake cleaner. Inspect the drum for any scoring, cracks, or excessive wear. It’s important to address any damage before reassembling, as this can affect braking performance.

Step 8 Reinstallation

If you replaced brake parts or completed your inspection, reinstalling the drum is the reverse of removal. Position the drum back onto the hub, replace any retaining screws, and adjust the brake shoes back to their operating position if you adjusted them previously.

Step 9 Reattach the Wheels

Once the drum is secured and the brake components are in order, replace the rear wheels. Tighten the lug nuts by hand, lower the vehicle, and then use a torque wrench to tighten the lug nuts to the manufacturer’s specifications.

Conclusion

Removing the rear brake drum on an Isuzu NPR HD is a straightforward process, provided you follow safety precautions and take the necessary steps. Regular maintenance of your brake system ensures safe operation and extends the life of your vehicle. Always consult your vehicle’s service manual for specific instructions tailored to your model.