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Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the machine. 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 in Caterpillar machines. Dispose of all fluids according to local regulations and mandates. |
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 hydraulic system.
- Start the engine and run the engine at high idle.
- Actuate all cylinders through a minimum of ten full cycles.
- Lower the bucket and/or attachments to the ground and stop the engine.
- Locate the scheduled oil sampling port.
- Start the engine and allow the engine to run at low idle.
Note: Do not operate the hydraulic controls.
- Draw a 50 mL (1.7 fl oz) oil sample through the scheduled oil sampling port. The level of contaminants must be lower than the values in ISO 18/15.
Show/hide table
Table 1 Hydraulic Oil Contamination Particle Size (Microns) Maximum Number of Particles in a 100 mL Sample >5 250000 >15 32000
- Repeat the procedure until the level of contaminants is within ISO 18/15 standards.