HARNESS AS-CHASSIS 4573309 - Caterpillar

Escaping fluid under pressure, even a pinhole size leak, can penetrate body tissue, causing 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.
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.
The following tests are used to obtain a scheduled oil sample of the hydraulic system.Effective fluid cleanliness is the single most important factor and the single greatest opportunity in maximizing component life, increasing reliability and durability, and lowering component life cycle costs. Customers provide oil samples, coolant samples, and other information. The dealer uses the data in order to provide the customer with recommendations for management of the equipment. S O S services can help detect a potential problem before a failure and help determine the cause. Your Caterpillar dealer may administer a program of an Extended Oil Drain with a Customer Support Agreement (CSA) that is based on routine Scheduled Oil Sampling (S O S) results and the use of genuine Caterpillar parts, filters, fluids, and scheduled services.
Illustration 1 g01918953
(1) S O S tapThere are pressure taps on the filter inlet and on the filter outlet which are located on the base of the transmission filter. Refer to Illustration 1. The pressure tap on the inlet is also a tap that is a dual purpose. In order to prevent damage to the seal in the port and a subsequent leak, use a fluid sampling bottle.
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.
Use the following procedure to obtain an S O S oil sample.
Start the engine. Warm up the oil until the oil reaches 47° C (116° F).
Ensure that the transmission control is in the NEUTRAL position and place the throttle in the LOW IDLE position.
Remove the dust cap. Refer to Illustration 1. Obtain an oil sample from the S O S tap by using a fluid sampling bottle.
Stop the engine.
Check the hydraulic filter element for foreign materials.
Replace the hydraulic filter element.Refer to Special Publication, PEHP6001, "How To Take A Good Oil Sample" for more information about obtaining a sample