Fixing the Rear Door Sagging Issue on the New Holland LS170 Skid Steer

[MikePhua]

Introduction: The Importance of a Functional Rear Door in Skid Steers
The New Holland LS170 skid steer is a versatile and rugged piece of equipment commonly used in construction, landscaping, and agriculture. It’s known for its power, maneuverability, and ease of operation, making it a go-to choice for many operators. However, like any piece of heavy machinery, wear and tear can take a toll, and one common issue that can arise with the LS170 is rear door sagging.
A sagging rear door can make it difficult to properly secure the door during operation or maintenance. It can also be a safety concern, as an improperly latched door can pose a risk during operation. This issue, though frustrating, is not uncommon and can be fixed with the right tools and steps.
In this article, we’ll explore the common causes of rear door sagging on the New Holland LS170, how to diagnose the problem, and the steps you can take to fix it. We’ll also share some insights and tips to prevent the issue from reoccurring in the future.
Common Causes of Rear Door Sagging

1. Worn or Damaged Hinges:
   Over time, the hinges on the rear door can wear out due to continuous use, exposure to harsh weather, and the weight of the door. When the hinges wear out, they may no longer support the door properly, leading to sagging. This is one of the most common causes of rear door sagging in skid steers like the New Holland LS170.
   
2. Bent or Misaligned Door Frame:
   A bent or misaligned frame can also contribute to sagging. This may occur if the door is hit or bumped by debris or equipment during operation, causing the frame to warp. This misalignment prevents the door from properly closing and securing, leading to sagging.
   
3. Loose or Worn Out Fasteners:
   Loose or worn-out fasteners, such as bolts and screws that hold the door in place, can contribute to door sagging. If these fasteners become loose or damaged, the door may start to hang unevenly.
   
4. Damaged Door Springs:
   Many skid steers, including the LS170, have springs that help lift and support the rear door. If the springs become damaged or lose their tension, they can no longer properly support the weight of the door, leading to sagging.
   

Diagnosing the Problem: How to Identify Rear Door Sagging Issues
Before diving into the repair process, it’s important to correctly diagnose the cause of the sagging. Here’s how you can systematically identify the problem:

1. Inspect the Hinges:
   Check the condition of the door hinges. Look for signs of wear, cracks, or loose bolts. If the hinges are visibly damaged or the door appears to be shifting when you open or close it, the hinges are likely the issue.
   
2. Examine the Door Frame:
   Inspect the frame of the rear door for any bends or misalignments. You can do this by looking at the door while it’s closed to see if it sits evenly in the frame. If you notice any significant warping or bending, this may be the cause of the sagging.
   
3. Check Fasteners:
   Check the bolts, nuts, and screws that secure the door to the frame. If they are loose or missing, tighten them up or replace them as necessary. Also, inspect the area around the fasteners for any signs of damage or stripping.
   
4. Test the Door Springs:
   If the rear door has springs that assist with lifting, test them to see if they are still functioning properly. If the door seems heavier than usual or if it doesn’t stay open or closed as it should, the springs may need replacement.
   

Steps to Fix the Rear Door Sagging on the LS170
Once you've diagnosed the cause of the sagging, here are the steps to fix it:

1. Replace or Repair Worn Hinges:
   If the hinges are the culprit, replacing them is often the most straightforward solution. Start by removing the door from the skid steer to access the hinges. You may need to remove the fasteners holding the hinges in place. Once the door is detached, install the new hinges, ensuring they are securely fastened and aligned correctly.
   If the hinges are not completely damaged but just worn, you might be able to repair them by tightening loose bolts or using shims to realign the door.
   
2. Straighten or Replace the Door Frame:
   If the door frame is bent or misaligned, you may need to replace the entire frame. This can be a more complex job, as it may require removing the old frame and carefully installing a new one. However, if the damage is minor, you may be able to straighten the frame using a hammer and mallet. Make sure the frame is properly aligned before reattaching the door.
   
3. Tighten or Replace Fasteners:
   If the fasteners are loose or worn out, tighten or replace them to secure the door in place. Check the integrity of the fasteners and ensure that they are appropriate for the weight of the door. If any fasteners are stripped or damaged, replace them with new ones to ensure the door remains securely fastened.
   
4. Replace the Springs:
   If the springs have lost their tension or become damaged, you will need to replace them. Start by releasing any tension from the old springs before removing them. Install the new springs, making sure they are securely attached and that the door operates smoothly.
   
5. Test the Door:
   After completing the repairs, test the door by opening and closing it several times. Ensure that the door opens and closes smoothly and that it remains securely in place when closed. Check for any sagging or misalignment and make adjustments as needed.
   

Real-World Example: Rear Door Sagging on a Job Site
A contractor working with a New Holland LS170 on a construction site noticed that the rear door had begun to sag over time, making it difficult to secure the door and increasing the risk of it accidentally opening during operation. After inspecting the door and hinges, the operator discovered that the hinges had worn out due to constant use in harsh conditions.
To solve the problem, the contractor replaced the hinges and re-tightened the fasteners securing the door. After the repair, the rear door functioned smoothly and securely once again, preventing further issues on the job site.
This example highlights the importance of regular maintenance and inspection of the rear door, especially in heavy-duty equipment like the LS170, where the door undergoes constant wear.
Preventing Rear Door Sagging in the Future
To prevent rear door sagging from becoming a recurring problem, follow these maintenance tips:

1. Regularly Inspect Hinges and Fasteners: Inspect the hinges, fasteners, and springs for signs of wear. Tighten or replace any loose components before they cause more serious problems.
   
2. Lubricate Hinges and Moving Parts: Regularly lubricate the door hinges and any moving parts to reduce friction and prevent wear. This will help the door operate more smoothly and extend the life of the components.
   
3. Avoid Excessive Force: Be mindful when operating the door to avoid putting unnecessary stress on the hinges or frame. Always ensure the door is properly latched before operation.
   
4. Store in a Dry Area: If possible, store the skid steer in a dry area to prevent rust and corrosion from affecting the door components.
   

Conclusion: Keeping Your LS170 Rear Door in Top Condition
A sagging rear door on the New Holland LS170 can be a frustrating issue, but with proper diagnosis and repair, it can be easily fixed. By understanding the causes of sagging, following the right steps to repair the door, and implementing a proactive maintenance routine, you can ensure that your skid steer remains in good working condition and avoid further issues down the road.
Regular inspections, timely repairs, and proper care will keep your rear door functioning properly, enhancing safety and productivity on the job site.