Hydraulic Cylinder Leak Test Guide

Product Overview

This comprehensive guide provides detailed instructions for testing hydraulic cylinder seals in various machinery systems, excluding angle cylinders due to their unique bypass design. It outlines a step-by-step procedure to identify leaks in the cylinder seals, ensuring the optimal performance and longevity of your machinery components.

Key Features

• Clear and detailed procedure for hydraulic cylinder seal testing
• Specific guidance for angle and standard cylinders
• Step-by-step instructions for effective troubleshooting
• Safe disassembly methods for angle cylinder inspection

Benefits

• Ensures the integrity and efficiency of your machineu2019s hydraulic system
• Helps prevent unexpected machinery downtime
• Enables early detection of potential hydraulic issues
• Contributes to cost-efficiency by reducing repair needs

Usage Recommendations

• Follow the specified procedure for cylinders excluding the angle cylinders with a bypass feature.
• Disassemble the angle cylinder according to “Dozer blade cylinders – Disassemble (35.741)” instructions for accurate sealing checks.
• Regularly perform leak tests as part of preventive maintenance routines.

Manual Extract: Cylinder Leak Check

Note: This procedure applies to all hydraulic cylinders except for angle cylinders with a bypass allowing a controlled leak past the cylinder seal.

1. Start the engine. Extend the cylinder rod on the cylinder to be verified to its maximum stroke.
2. Turn off the engine.
3. Set the ignition key to the ON position. Ensure the parking brake lever is in the operating position. Adjust control levers to release hydraulic circuit pressure, then apply the right-hand parking brake lever. Finally, switch off the ignition key.
4. Disconnect the hydraulic line from the end of the cylinder rod being tested. Cap the end of the hydraulic line securely.
5. Attach a hose to the open port on the end of the cylinder rod. Position the hose’s opposite end into a container suitable for fluid collection.
6. Restart the engine and hold the hydraulic control lever to extend the cylinder for testing.
7. If oil flows from the port at the cylinder rod’s end, a leak is present in the seal.