GLASS (SEM) 5530568 - Caterpillar

1. Retract the bucket and stick cylinders. Extend the boom cylinders and rest the boom on tooling (A). 2. Attach a hoist as shown. Apply enough pressure to relieve the tension on the cylinder pin.3. Remove two bolts and washers (2) and remove pin (1). Lower the rod of the cylinder to the ground.4. Start the machine and retract the boom cylinder. This will reduce the size of the cylinders for easier removal.5. Turn the machine off and secure the rod end of the cylinders to the cylinder. This will prevent the rod from drifting out after the hydraulic hoses are disconnected.6. Drain the hydraulic tank. The hydraulic tank capacity is 125 liters (33 Gal). This will prevent loss of hydraulic fluid when the hoses are disconnected. Some models have a boom check valve which prevents fluid loss during cylinder removal without draining of the hydraulic tank. Always drain the hydraulic tank unless this valve is present and in proper working order. If the valve is present, it will be located at the base of the cylinders. 7. Identify, disconnect and plug four hydraulic lines (3). 8. Attach a hoist as illustrated and raise the cylinder to relieve the pressure on the pin. Remove bolt (4) and pin (5). Remove the cylinder. Weight of the cylinder is 159 kg (350 lb).9. Repeat Steps 1 through 5 for the second cylinder. Install in reverse order. For disassembly and assembly, see Disassemble And Assemble Bucket Cylinder, for typical example.