AXLE AR-FIXED 3409859 - Caterpillar

Personal injury or death can result from escaping fluid under pressure.Escaping fluid under pressure, even a very small pin-hole size leak, can penetrate body tissue and cause serious injury and possible death. If fluid is injected into your skin, it must be treated 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, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat products.Dispose of all fluids according to local regulations and mandates.
Operational Checks (Steering System)
The operational checks can be used to find leakage in the steering system. Also, the operational checks can be used to find a failed valve or a failed implement and steering pump. Before you begin the checks, refer to Troubleshooting, "Machine Preparation for Troubleshooting".Reference: Before you start the engine, refer to Operation and Maintenance Manual, "Before Starting Engine".The oil in the steering system must be at an normal operating temperature.Release the parking brake.
Release the service brakes. Move the joystick controls in both directions until the steering cylinders extend completely and the steering cylinders retract completely. The extension of the steering cylinders must be smooth and regular. The retraction of the steering cylinders must be smooth and regular.
Listen for noise from the pump for the implement and steering.
Inspect the steering system for leaks and damaged components. Operational Checks (Hydraulic System)
The oil in the hydraulic system must be at an operating temperature of 60° 5°C (140° 9°F).
Move the implements in both directions until the implement cylinders extend completely and the implement cylinders retract completely. The extension of the implement cylinders must be smooth and regular. The retraction of the implement cylinders must be smooth and regular.
Listen for noise from the pump for the implement and steering.
Inspect the implement system for leaks and damaged components.