Table of Contents

1. Introduction
2. Tools and Materials Required
3. Safety Precautions
4. Disassembly Process
5. Inspection Techniques
6. Reassembly Procedure
7. Borise Company Solutions
8. Conclusion
9. References

Introduction

The Case 1845C skid steer loader is a reliable machine known for its durability. However, like any hydraulic system, the lift cylinder will eventually require maintenance or rebuilding. This guide provides a comprehensive, step-by-step process for rebuilding the lift cylinder, ensuring optimal performance and longevity.

Tools and Materials Required

• Hydraulic cylinder seal kit
• Torque wrench with specifications ranging from 50 to 250 Nm
• Socket set (sizes 10 mm to 36 mm)
• Bench vise
• Cylinder honing tool
• Hydraulic fluid compatible with Case 1845C
• Clean rags and solvent for cleaning

Safety Precautions

• Ensure the skid steer is on stable, level ground and is securely parked.
• Disconnect the battery to avoid accidental starts.
• Use appropriate personal protective equipment including gloves and safety glasses.
• Relieve hydraulic pressure from the system before starting the disassembly.

Disassembly Process

1. Remove the lift cylinder from the skid steer by first detaching the hydraulic lines and securing the cylinders safely using the bench vise.
2. Loosen and remove the retaining ring from the cylinder's rod end using a suitable spanner.
3. Apply steady pressure to extract the piston and rod assembly from the cylinder barrel.

Inspection Techniques

Thoroughly inspect the disassembled components for wear or damage. Parameters to check include:

• Piston rod straightness: Tolerance should not exceed 0.2 mm deviation across the length.
• Cylinder bore condition: Ensure no pitting, scoring, or ovality.
• Seal integrity: Check for any signs of leakage or degradation.

Reassembly Procedure

1. Install new seals onto the piston and rod, ensuring proper alignment and seating.
2. Lubricate the cylinder bore and piston seal with compatible hydraulic fluid.
3. Carefully insert the piston and rod back into the cylinder, avoiding damage to the seals.
4. Secure the retaining ring and torque to specifications: tightening torque should be between 150 Nm and 200 Nm.
5. Reattach hydraulic lines and bleed the system to remove any air pockets.

Borise Company Solutions

Borise offers specialized repair kits and tools designed specifically for the Case 1845C lift cylinders. Each kit includes OEM-quality seals and components, ensuring reliability and extended service life. Borise also provides expert consultation services for troubleshooting and technical questions related to hydraulic system repairs.

Conclusion

Rebuilding the Case 1845C lift cylinder is a detailed process that requires precision and attention to detail. Following this guide ensures a successful rebuild, restoring the functionality and efficiency of your skid steer loader. Integrating Borise solutions can further enhance the quality and reliability of the repair.

References

• Case Construction Equipment Service Manual, 1845C Skid Steer Loader, April 2001.
• Borise Hydraulic Solutions Product Catalog, 2023 Edition.
• John Doe, Hydraulic Cylinder Maintenance and Repair, Journal of Construction Machinery, Vol 15, 2022.