TUBE AS 5092302 - Caterpillar

Do not operate or work on this machine unless you have read and understand the instructions and warnings in the Operation and Maintenance Manual. Failure to follow the instructions or heed the warnings could result in injury or death. Contact any Caterpillar dealer for replacement manuals. Proper care is your responsibility.
Sudden movement of the machine or release of oil under pressure can cause serious injury to persons on or near the machine.To prevent possible injury, perform the procedure that follows before testing and adjusting the hydraulic system.
When testing and adjusting the transmission and power train, move the machine to an area clear of obstructions, with safe exhaust ventilation for the exhausts. Sudden movement of the machine or release of oil under pressure can cause injury to persons on or near the machine. To prevent possible injury, do the procedure that follows before testing and adjusting the transmission and power train.
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 Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Caterpillar products.Dispose of all fluids according to local regulations and mandates.
Move the machine to a smooth, horizontal location that is away from operating machines and away from personnel.Note: Permit only one operator on the machine at a time. Keep all other personnel away from the machine or in the operator's sight.
Lower the screed to the ground.
Engage the parking brake. Place blocks around the wheels.
Stop the engine.
Make sure that all of the hydraulic pressure is released before any hydraulic components are altered.During a diagnosis of the hydraulic system, remember that correct oil flow and pressure are necessary for correct operation. The output of the pump (oil flow) increases with an increase in engine speed (rpm). The output decreases when engine speed (rpm) is decreased. Oil pressure is caused by resistance to the flow of oil.Before any tests are made, visually inspect the complete hydraulic system for oil leaks and damaged parts. For some of the tests, a magnet and a measuring rule are usable tools.When any test is made of the machine systems, the hydraulic oil must be at the normal temperature for operation.Troubleshooting can be complex. A list of some of the possible problems and corrections is on the following pages.This list of possible problems and possible corrections will only provide an indication of the location of a problem and the repairs that are required. Remember that a problem is not necessarily caused by one part, but by the relation of one part with other parts. This list can not provide all possible problems and corrections. Service personnel must find the problem and the source of the problem. Then, complete the necessary repairs.Perform a visual inspection first. If the visual checks are completed but the problem has not