PIN-COTTER 0950843 - Caterpillar

Personal injury or death can result from sudden machine movement.Sudden movement of the machine or release of oil under pressure can cause injury to persons on or near the machine.To help prevent possible injury before testing and adjusting any hydraulic system, perform the procedure that follows:
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the machine. 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 in Caterpillar machines.Dispose of all fluids according to local regulations and mandates.
Park the machine on a smooth, level surface. Move away from other operating machines and away from personnel. Lower attachments to the ground. Stop the engine.
Permit only one operator on the machine. Other personnel should maintain a safe distance from the machine. Personnel should be visible to the operator.
Engage the parking brake. Place wheel chocks in front of the wheels and behind the wheels.
Depress the brake pedal repeatedly until all brake oil pressure is released.
Carefully loosen the filler cap on the hydraulic tank for the steering and brake system. This will release the pressure in the tank.
All hydraulic pressure must be released before any hydraulic components are worked on.Note: The 4C-4890 Hydraulic Test Group can be used to make the various pressure tests for the steering system. Before any tests are performed, visually inspect the complete steering system for oil leaks and for damaged parts. For some tests, a magnet and a measuring rule (inches or millimeters) may be required.Procedure
Before a problem can be corrected, the problem must be identified and defined. Once the problem has been identified and defined, refer to the following section: 994 Wheel Loader Steering System, Systems Operation, and Testing and Adjusting, SENR4749, "Steering System Troubleshooting". To help identify the problem, refer to the following procedure.
To help identify the problem, refer to the following section: 994 Wheel Loader Steering System, Systems Operation, and Testing and Adjusting, SENR4749, "Visual Inspection" .
To help identify the problem, refer to the following section: 994 Wheel Loader Steering System, Systems Operation, and Testing and Adjusting, SENR4749, "Steering System Troubleshooting" .
Perform the tests in the Service Manual: 994 Wheel Loader Steering System, Systems Operation, and Testing and Adjusting, SENR4749, "Testing and Adjusting" .