Steering Cylinder Removal on the JLG 35E: A Comprehensive Guide

[MikePhua]

Introduction: The Importance of Steering Cylinder Maintenance
The steering system of a lift like the JLG 35E is vital for smooth operation and safe maneuvering of the equipment. The steering cylinder, which converts hydraulic pressure into mechanical force to move the wheels, can wear out over time, leading to steering issues. These issues can include difficulty in turning or uneven steering response, making it necessary to perform repairs or replacements on the steering cylinder.
In this article, we will walk you through the process of removing the steering cylinder on the JLG 35E, discuss common challenges faced during the removal, and provide useful tips for a successful repair or replacement.
Why Steering Cylinder Removal May Be Necessary
There are several reasons why you might need to remove the steering cylinder on a JLG 35E. Some of the most common include:

1. Hydraulic Leaks
   A leaking steering cylinder is one of the most common problems. Hydraulic fluid leakage can reduce steering performance and, if left unchecked, can damage other components in the system. Leaks are often due to worn seals or damaged cylinder components.
   
2. Cylinder Wear
   Over time, the steering cylinder can become worn out due to excessive use, debris, or lack of maintenance. When the cylinder’s internal parts wear down, the steering response becomes sluggish or unresponsive.
   
3. Damage from Impact
   The steering cylinder is vulnerable to damage from collisions or extreme conditions on construction sites or in industrial settings. If the cylinder is dented, bent, or otherwise compromised, it will need to be replaced.
   

Preparing for Steering Cylinder Removal
Before you begin the removal process, make sure you have the necessary tools and equipment. Proper preparation can make the job easier and safer.

1. Tools Required
   • Wrenches and socket set
     
   • Hydraulic jacks or lifting equipment
     
   • Hydraulic fluid catch pan
     
   • Safety equipment (gloves, safety glasses, etc.)
     
   • Replacement seals or cylinder if required
     
2. Safety First
   Safety should always be your top priority. Before beginning any work on the JLG 35E, ensure the machine is parked on level ground and the engine is turned off. Use wheel chocks and engage the lift’s parking brake to prevent any unintended movement. Always wear safety gloves and goggles to protect yourself from hydraulic fluid and sharp edges.
   
3. Drain the Hydraulic System
   To avoid spills, you should drain the hydraulic fluid from the system before removing the steering cylinder. Place a catch pan underneath the hydraulic lines to collect any residual fluid. This step is essential to prevent hydraulic fluid from leaking into the surrounding environment.
   

Step-by-Step Guide to Steering Cylinder Removal
Follow these steps to remove the steering cylinder on a JLG 35E lift:

1. Lift the Front End
   Use a hydraulic jack or lifting equipment to raise the front of the lift where the steering cylinder is located. Secure the machine with safety stands to ensure it remains stable during the removal process.
   
2. Disconnect the Hydraulic Lines
   Locate the hydraulic lines that feed into the steering cylinder. Using a wrench, carefully disconnect the hydraulic hoses. Be sure to catch any residual hydraulic fluid with a pan or container. If you encounter stubborn hoses, use a bit of penetrating oil to loosen the fittings.
   
3. Remove the Cylinder Mounting Bolts
   The steering cylinder is typically mounted on both ends with bolts or pins. Use the appropriate tools to remove these fasteners. It may be necessary to use a breaker bar for particularly tight bolts. Keep the mounting bolts in a safe place for reinstallation.
   
4. Remove the Steering Cylinder
   Once the hydraulic lines and mounting bolts are removed, you should be able to slide the steering cylinder out of its mount. It may be necessary to use a pry bar or gentle force to release the cylinder, especially if it has been in place for a long time.
   
5. Inspect and Clean
   After the cylinder is removed, inspect it for damage. If you're replacing the entire cylinder, you’ll want to inspect the area where the cylinder was mounted for any signs of wear or damage. Clean the mounting area and remove any debris or dirt that could interfere with the reinstallation of the new or repaired cylinder.
   

Common Challenges in Steering Cylinder Removal
While removing the steering cylinder from the JLG 35E is a straightforward process, there are some challenges that you may encounter:

1. Stuck or Corroded Bolts
   Over time, the bolts securing the steering cylinder may rust or become seized, making them difficult to remove. If you encounter this, use a penetrating lubricant and allow it to sit for several minutes before attempting to loosen the bolts again. If the bolts remain stuck, applying heat with a torch may help to loosen them.
   
2. Hydraulic Leaks
   After disconnecting the hydraulic lines, it’s possible that some fluid will leak out. If you’re not prepared with a catch pan or suitable containers, this can create a mess. Be sure to drain the hydraulic fluid properly before starting and use absorbent materials to clean up any spills.
   
3. Heavy Cylinder
   The steering cylinder on the JLG 35E can be quite heavy, making it difficult to remove on your own. Having an assistant or using a lifting tool to support the cylinder while removing it can make the job much easier and safer.
   
4. Alignment Issues During Reinstallation
   When reinstalling the steering cylinder, it’s crucial that everything aligns correctly. Misalignment can cause undue strain on the steering system, leading to premature wear or failure. Take your time to ensure that the cylinder is seated properly and all fasteners are tightened securely.
   

Replacing or Repairing the Steering Cylinder
Once the steering cylinder has been removed, you’ll need to decide whether to repair or replace it. Here’s what to consider:

1. Repairing the Cylinder
   If the damage is minor, such as a leaking seal, it may be possible to repair the cylinder by replacing the seals, cleaning the internal components, and refilling the hydraulic system. Check the piston rod for any deep scratches or pitting that could cause further damage when reinstalled.
   
2. Replacing the Cylinder
   In cases of significant damage, such as a bent rod or cracked housing, replacing the entire steering cylinder may be the most cost-effective and reliable solution. Ensure that the replacement cylinder is compatible with the JLG 35E model, and always use OEM (original equipment manufacturer) parts for the best results.
   

Conclusion: Ensuring Long-Term Performance with Proper Maintenance
Regular maintenance of the steering system, including periodic inspection and timely repair or replacement of the steering cylinder, is essential to the performance and safety of your JLG 35E. By following the proper steps for cylinder removal and replacement, you can ensure that the lift operates smoothly and safely, preventing unnecessary downtime or costly repairs in the future.
Whether you’re a professional technician or a DIY enthusiast, understanding how to remove and maintain the steering cylinder is a critical skill for keeping your equipment in top condition.