BEARING 2J5555 - Caterpillar

Escaping fluid under pressure, even a pinhole size leak, can penetrate body tissue, causing serious injury, and possible death. If fluid is injected into your skin, it must be treated immediately by a doctor familiar with this type of injury.Always use a board or cardboard when checking for a leak.
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.
This section provides possible causes to problems. Since there may be several possible causes, specific inspections or instrument tests may be recommended. These inspections and tests will help to identify the causes that are most probable.This section covers possible causes of brake problems for the 950G Series II Wheel Loader, the 962G Series II Wheel Loader, and the IT62G Series II Integrated Toolcarrier.Note: Use oil with the correct viscosity for the operating conditions.
POSSIBLE PROBLEM LIST FOR THE SERVICE BRAKES
The accumulator pressure will not reach cut-out pressure at low idle. This may cause a Warning Category 3 to occur. This may also engage the parking brake.
The front service brakes do not operate, and the warning system is not activated.
The rear service brakes do not operate, and the warning system is not activated.
The service brakes slip, and the warning system is not activated.
Too much force needed to push the brake pedals, and the warning system is not activated.
Possible Causes of Problems with the Service Brakes Problem 1The accumulator pressure does not reach the cut-out pressure at low idle. This typically causes a Warning Category 3 to occur. The oil pressure light for the brakes will flash. The action lamp will flash, and the action alarm will sound. This problem may also engage the parking brake.Possible cause
When the hydraulic oil is hot and the engine is running at low idle, the output of a bad pump is not sufficient to overcome the pump's own internal losses.
The combination valve is not functioning properly.Problem 2The front service brakes do not operate, and the warning system