Removing Hydraulic Hoses on a Case 1840 Lift Control: A Step-by-Step Guide

[MikePhua]

When working on a Case 1840 skid steer loader, hydraulic systems are crucial for controlling movement and lifting. Over time, hydraulic hoses may need to be replaced, repaired, or removed for servicing. Understanding how to properly remove the hydraulic hoses on the Case 1840 lift control system ensures the job is done efficiently and safely. In this article, we will guide you through the process of removing the hydraulic hoses from the lift control, providing helpful tips and precautions along the way.
1. Importance of Proper Hydraulic Hose Removal
Hydraulic hoses are essential components in any skid steer loader. They transmit fluid between the hydraulic pump and various systems such as the lift control. Removing these hoses improperly can result in spills, contamination, and damage to the hydraulic system. It’s important to follow the correct procedure to avoid these issues and ensure the system remains functional.
2. Tools Required for Hydraulic Hose Removal
Before starting, gather the necessary tools to complete the task efficiently:

• Wrenches: A set of wrenches or a socket set is required to loosen and remove the hose fittings.
  
• Hydraulic Hose Remover: If the hoses are tightly fitted, a hydraulic hose remover tool can be helpful.
  
• Rags or Spill Containment Pads: To absorb any hydraulic fluid that might leak out during the removal process.
  
• Hydraulic Fluid Container: To catch any fluid that may escape from the hoses.
  
• Gloves and Safety Glasses: Protect your hands and eyes from hydraulic fluid and any debris.
  

3. Preparation Before Removing Hydraulic Hoses
Before you begin removing the hydraulic hoses on the Case 1840 lift control system, follow these preparatory steps to ensure a safe and effective process:

• Turn Off the Engine: Ensure that the skid steer is turned off and the key is removed from the ignition. This will prevent any accidental hydraulic pressure from being applied during the removal process.
  
• Relieve Hydraulic Pressure: It's crucial to relieve any hydraulic pressure in the system to prevent fluid from spraying when you disconnect the hoses. To do this, activate the loader controls, moving the lift arms or bucket to neutral. This will help release pressure from the system.
  
• Place the Machine on a Stable Surface: Make sure the skid steer is on a level and stable surface to avoid any movement during the procedure.
  
• Wear Protective Gear: Put on gloves, safety glasses, and any other personal protective equipment (PPE) to protect yourself from fluid spills or flying debris.
  

4. Step-by-Step Guide to Removing Hydraulic Hoses
Now that you’ve prepared the machine and gathered your tools, you can begin removing the hydraulic hoses from the Case 1840 lift control system:

• Locate the Hydraulic Hoses: Find the hydraulic hoses that are connected to the lift control system. These hoses are typically routed from the pump to the lift cylinders or valve assembly.
  
• Inspect the Hoses and Connections: Look for any signs of wear, leaks, or damage to the hoses or fittings. If the hoses are worn or cracked, they may need to be replaced during the process.
  
• Loosen the Fittings: Use your wrenches or socket set to loosen the fittings that secure the hoses. Be sure to loosen both ends of the hose — at the lift control valve and at the cylinder or pump — as needed. Turn the fittings counterclockwise to release them.
  
• Remove the Hoses: Once the fittings are loose, carefully pull the hoses away from their connections. If the hoses are difficult to remove, gently tap them with a soft mallet or use a hydraulic hose remover tool to release them. Be cautious of hydraulic fluid that may leak during the removal.
  
• Catch Any Fluid: As you remove the hoses, be prepared for hydraulic fluid to spill out. Use rags or spill containment pads to catch the fluid and prevent it from spilling onto the ground.
  

5. After Hose Removal: Inspection and Replacement
After successfully removing the hydraulic hoses, it’s essential to inspect them for any damage or wear:

• Inspect the Fittings: Check the hose fittings for signs of damage, corrosion, or wear. If any of the fittings are damaged, they should be replaced before reassembling the system.
  
• Inspect the Hoses: Look for cracks, bulges, or worn spots on the hoses. If the hoses are damaged, replace them with new ones that meet the manufacturer’s specifications.
  
• Check for Contamination: Ensure that the hoses and the hydraulic system are free of contamination. If needed, clean the connections and fittings to avoid introducing debris into the system during reinstallation.
  

6. Reinstalling the Hydraulic Hoses
Once you have completed the inspection and hose replacement, you can proceed with reinstalling the hydraulic hoses. Follow these steps:

• Align the Hoses: Carefully align the new or repaired hoses with the fittings on both the lift control valve and the lift cylinders or pump.
  
• Tighten the Fittings: Secure the hoses by tightening the fittings with your wrenches or socket set. Be sure to tighten the fittings securely but avoid overtightening, which could cause damage to the threads or fittings.
  
• Test the System: After reinstalling the hoses, start the engine and test the hydraulic system. Operate the lift controls to ensure that the hydraulic fluid is flowing properly and that there are no leaks. Check for any signs of malfunction, and address any issues promptly.
  

7. Conclusion: Proper Hydraulic Hose Removal and Maintenance
Properly removing and reinstalling hydraulic hoses on a Case 1840 lift control system is a crucial skill for maintaining the machine’s hydraulic performance. By following the correct procedure, using the right tools, and taking safety precautions, you can ensure the job is done safely and efficiently. Regular maintenance, including inspecting and replacing worn hoses, will keep your skid steer loader operating smoothly and prevent costly breakdowns.