SEAL-INTEGRAL 3270283 - Caterpillar

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(18) Fabricated suction tube (19) 220-8607 Fitting (20) 210-5530 Quick Connect Coupler (21) S O S valve
Attach the fabricated particle counter "low pressure in" suction tube (18) to the S O S valve (21) on the filter cart.Note: The fabricated suction tube (18) can be made with the parts listed in Table 2 and as shown in Illustration 10.
Attach the other end of the fabricated suction tube (18) to the "low pressure in" port on the portable particle analyzer as called for in the Tool Operating Manual.Bottle Sample Procedure
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(21) S O S valve (22) 169-8373 Fluid Sampling Bottle
If collecting a bottle sample, use the same S O S valve (21), and a 169-8373 Fluid Sampling Bottle . Refer to Special Instruction, SEBF8482, "Obtaining an Oil Sample for S O S Analysis" for more information.
Record an oil sample from the S O S valve (21) on the filter cart at the beginning of the filter cycle.
Start the machine. Cycle the boom circuit and cycle the stick circuit every half an hour of the filter cart operation. Cycle the cylinders to the end of the stroke at least four complete times. Cycling of the cylinders will flush the contaminated hydraulic system oil back to the tank. Cycling the cylinders will cycle the clean tank oil into the system and flush the more contaminated oil back into the tank. The filtration procedure can be performed while cycling the machine. Turn the engine OFF.Note: Stop the procedure and change the hydraulic filters after one half of an hour of filtering. Changing the filters allows the filters to assist in the system cleaning. The new filters can remain in place until the next scheduled filter change. Changing the filters at this time avoids opening the filter housing after the system has been cleaned. An open filter housing is an inlet for contamination.
Operate the filter cart until the portable particle analyzer indicates that the oil has reached an ISO level of 18/15 or better. Take a final oil sample and record the final ISO level before the machine is returned to the field.Note: Refer to ""Oil Compartment Filtration Times for 188-3242 Filter Cart"", at the end of this document when a portable particle analyzer is not available.
When the target ISO level or the time interval has been met, close the air supply valve (16) and disconnect the air supply hose (17). Refer to Illustration 9.Kidney Loop Removal
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(11) Suction adapter (12) Suction hose
Disconnect the filter cart suction hose (12) from the suction adapter (11). Install the dust caps on the couplers and nipples.
Remove the suction adapter (11). Install the drain plug (10). Refer to Illustration 5.
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(14) Discharge hose (15) Discharge adapter
Disconnect the filter cart discharge hose (14) from the discharge adapter (15). Install the dust caps on the couplers and nipples.
Reinstall the filler plug (13). Refer to Illustration 7.
Check the hydraulic tank oil level.
Inspect the hydraulic system for leaks. Most hydraulic contamination is brought into the