ROD AS 4820299 - Caterpillar

Removal Procedure
Start By:
Release the hydraulic system pressure. Refer to Disassembly and Assembly, "Hydraulic System Pressure - Release".
Remove the bottom guard. Refer to Disassembly and Assembly, "Bottom Guard - Remove and Install".
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Refer to Special Publication, NENG2500, "Caterpillar Tools and Shop Products Guide" for tools and supplies suitable to collect and contain fluids on Caterpillar products.Dispose of all fluids according to local regulations and mandates.
Personal injury can result from hydraulic oil pressure and hot oil.Hydraulic oil pressure can remain in the hydraulic system after the engine has been stopped. Serious injury can be caused if this pressure is not released before any service is done on the hydraulic system.Make sure all of the attachments have been lowered, oil is cool before removing any components or lines. Remove the oil filler cap only when the engine is stopped, and the filler cap is cool enough to touch with your bare hand.
Note: Put identification marks on all lines, on all hoses, on all wires, and on all tubes for installation purposes. Plug all lines, all hoses and all tubes. This helps to prevent fluid loss and this helps to keep contaminants from entering the system.
Drain the hydraulic tank into a suitable container for proper storage or disposal.
Illustration 1 g00635466
Remove two bolts (1) and the washers. Remove two clamps (2) .
Illustration 2 g00635473
Remove hydraulic hose (3) from pilot accumulator (4). Remove pilot accumulator (4) .Installation Procedure
Illustration 3 g00635473
Install hydraulic hose (3) on pilot accumulator (4) .
Illustration 4 g00635466
Install two clamps (2) on pilot accumulator (4). Put pilot accumulator (4) in position on the machine frame. Secure hydraulic accumulator (4) with two bolts (1) .
Fill the hydraulic tank with hydraulic oil. Refer to Operation and Maintenance Manual for the correct procedure.
Start the machine. Purge all air from the hydraulic system. End By: Install the bottom guard. Refer to Disassembly and Assembly, "Bottom Guard - Remove and Install".