HOSE AS 3047862 - Caterpillar

Hot oil and hot components can cause personal injury. Do not allow hot oil or hot components to contact the skin.
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 immediately by a doctor familiar with this type of injury.Always use a board or cardboard when checking for a leak.
Sudden movement of the machine or release of oil under pressure can cause injury to persons on or near the machine.In order to prevent possible injury, perform the following procedure before testing and adjusting any of the machine hydraulic systems.
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, PERJ1017, "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.
The fan does not turn
Possible Causes
The fan is damaged or the fan is mechanically bound
There is a problem with the fan motor. The fan motor may be mechanically bindingThe fan runs slowly
Possible Causes
There is a faulty coolant temperature sensor
There is a faulty hydraulic oil temperature sensor
There is a faulty transmission oil temperature sensor
There is a problem with the piston pump
There is a problem with the fan motor
There is a problem in the main control valve, the diverter valve is stuck due to damage or contamination
There is a problem with the demand fan solenoid valve, the demand fan solenoid is stuck or damagedThe fan runs at maximum speed
Possible Causes
The coolant temperature is high, the radiator may be blocked
The hydraulic oil temperature is high
The transmission oil temperature is high
There is a faulty coolant temperature sensor
There is a faulty hydraulic oil temperature sensor
There is a faulty transmission oil temperature sensor
There is a problem in the main control valve, the diverter valve is stuck due to damage or contamination
There is a problem with the fan demand solenoid valve, the fan demand solenoid is restricting load sense oil returning to the hydraulic tank
There is a problem with the electrical connections between the ECM, and the fan demand solenoid valve