DISC-FRICTION 1241536 - Caterpillar

Illustration 17 g03806403
(5) 169-8373 Bottle Group
If collecting a bottle sample, use the same S O S valve (2) and a 169-8373 Bottle Group (5).
Record an oil sample reading from the S O S valve (2) on the filter cart at the beginning of the filter cycle.
During the filter cart operation, cycle all hydraulic cylinders at least four times each half hour. Operation of the hydraulic cylinders will cycle the clean tank oil into the hydraulic system and flush the more contaminated oil back into the tank. The oil filtration can be performed while running the engine.
Illustration 18 g01251435
Filter cart operation on a D5M.
After a half hour of filtering, stop the procedure and change the hydraulic filter of the machine. Changing the filters allows the filters to assist in system cleaning. The new filter can remain in place until the next scheduled filter change. Changing the filters 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 acceptable ISO level 18/15. The final ISO code should be recorded before the machine is returned to the field.Note: Refer to "Oil Compartment Filtration Times for 204-7392 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 (9) and disconnect the air supply hose (8). Refer to Illustration 9.
Hot oil and components can cause personal injury. Do not allow hot oil or components to contact skin.
Illustration 19 g03806407
(6) Probe
(7) S O S valve (on the fill cap adapter)
To relieve possible tank pressure, use a probe (6) from the 169-8373 Bottle Group and depress the S O S valve (7) on the fill cap adapter.
Disconnect the filter cart return line (6) from the fill cap adapter side return port (7). Refer to Illustration 8.
Disconnect the filter cart suction line (4) from the fill cap adapter center suction port (5). Refer to Illustration 7.
Remove the 193-5903 Fill Cap Adapter (2). Refer to Illustration 5.
Install protective caps to the fill cap adapter, the filter cart suction line, and the filter cart return line to control contamination.
Install the strainer and the lock-ring into the hydraulic filler neck.
Install the hydraulic oil tank filler cap (1). Refer to Illustration 3.
Check the oil level in the sight gauge.
Inspect the hydraulic system for leaks. Most hydraulic contamination is brought into the system from an external source. To provide long-term benefits, repairs must be completed before the machine is returned to service.Oil Compartment Filtration Times for 204-7392 Filter Cart
If an on-line, portable particle analyzer is not available to diagnose and track when the contaminant level has lowered to an acceptable point, refer to the following equation. This equation only relates to the 204-7392 Filter Cart only. Other filtration units will have different equation reference and will be noted when appropriate. There are various conditions that must be