RING-PISTON 2848991 - Caterpillar

Hydraulic Oil Contamination
Introduction
The steering system and the transmission system use hydraulic oil from the hydraulic tank. Caterpillar recommends the use of the S O S oil analysis program in order to monitor the condition of your equipment. If the oil becomes contaminated, premature component failure could result. Contaminated oil can also contribute to overheating. Use the following procedure to sample the oil in the system.Reference: See Operation and Maintenance Manual, "S O S Fluid Analysis" for further information about this S O S oil analysis program. Flushing the Sampling Valve
Hot oil and components can cause personal injury.Do not allow hot oil or components to contact skin.
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.
In order to obtain a representative oil sample, it is first necessary to flush the sampling valve.Required Tools
Use the following equipment in order to Flush the Sampling Valve:
Table 1
Required Tools    
Tool     Part Number     Part Description     Qty    
A     8T-9208     Probe Assembly     1    
6K-0713 Hose     1    
Shift the transmission to NEUTRAL and engage the parking brake.
Start the engine.
Extend the boom and retract the boom several times in order to warm the hydraulic oil.
Operate each implement several times in order to circulate the warm oil. Rotate the steering wheel from stop to stop several times.
Allow the engine to run on low idle.
Open the engine enclosure.
Illustration 1 g00867454
The Hydraulic Oil Sampling Valve is Located in the Engine Compartment.
Locate the sampling valve that is positioned at the top of the hydraulic oil filter. Remove the rubber cap from the sampling valve.
Attach the 8T-9208 Probe Assembly to the 6K-0713 Hose .
Direct the hose into a container for fluid waste. Remove approximately 30 mL (1 fl oz) of fluid from the sampling valve.Obtaining the Sample
Hot oil and components can cause personal injury.Do not allow hot oil or components to contact skin.
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.
Once the sampling valve has been flushed, carry out the following procedure in order to obtain an oil sample:Required Tools
Use the following equipment in order to obtain the Sample:
Table 2
Required Tools    
Tool     Part Number     Part Description     Qty    
B     177-9343     Fluid