BEARING 3478173 - Caterpillar

Removal Procedure
Start By:
Connect the steering frame lock. Refer to Disassembly and Assembly, "Steering Frame Lock - Separate and Connect".
Release the pressure in the hydraulic system. Refer to Disassembly and Assembly, "System Pressure - Release".
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 the sudden release of high pressure oil.Be sure the engine has been shut off for a minimum of five minutes to be sure that the accumulator pressure is zero.The accumulator is filled with dry nitrogen. Do not loosen or remove the valve or cap from the top of the accumulator. A purge screw at the bottom of the accumulator can be used to release the pressure that is left in the system.
Note: Put identification marks on the tube assemblies for installation purposes. Plug the tube assemblies. This helps to prevent fluid loss and this helps to keep contaminants from entering the system.Note: The brake accumulators are located on the left side of the machine under the platform.
Illustration 1 g00408961
Disconnect three tube assemblies (1) .
Remove two bolts (2), the brackets and two brake accumulators (3) .Installation Procedure
Illustration 2 g00408961
Install two brake accumulators (3), the brackets and two bolts (2) .
Install three tube assemblies (1) .End By: Separate the steering frame lock. Refer to Disassembly and Assembly, "Steering Frame Lock - Separate and Connect".