THERMOSTAT, ASSY OIL 7097262C1 - Caterpillar

Sudden movement or accidental starting of the machine can cause personal injury or death to persons on or near the machine.To prevent personal injury or death, perform the following:Park the machine on a smooth level surface.Lower the bucket and or attachments to the ground.Stop the engine and engage the parking brake.Block the wheels and install the steering frame lock.Turn the battery disconnect switch to the OFF position and remove the key.Place a Special Instruction, SEHS7332, "Do Not Operate" tag at the battery disconnect switch location to inform personnel that the machine is being worked on.
Personal injury can result from hydraulic oil pressure and hot oil.Hydraulic oil pressure can remain in the hydraulic system after the engine has been stopped. Serious injury can be caused if this pressure is not released before any service is done on the hydraulic system.Make sure all of the attachments have been lowered, oil is cool before removing any components or lines. Remove the oil filler cap only when the engine is stopped, and the filler cap is cool enough to touch with your bare hand.
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.
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.
When you diagnose a problem in the electrohydraulic system, a visual inspection of the system is the first step. Perform the following inspections:Hydraulic System
Check the oil level in the hydraulic oil tank.
Look for air in the hydraulic tank oil immediately after the engine is stopped. Use a clear container to obtain a sample of the oil. Look for air bubbles in the oil in the container.
Remove the oil filters and look for particles in the filter elements. A magnet will separate ferrous particles such as iron and steel from the nonferrous particles such as aluminum and rubber.
Rubber particles indicate a seal failure or a hose failure.
Metallic particles indicate the failure of a valve, the failure of a motor, or the failure of a pump.
Check for flow restrictions in all oil lines. Flow restrictions include acute bends in the oil lines, clamps that are not installed correctly, and physical damage to hoses and to tubes. Check all connections for damage and for leaks.
Check the tightening torques of all bolts on the hydraulic components and the connections for the hydraulic oil lines.Electrical System
Intermittent electrical problems are often