VALVE GP-DIVERTER 2390605 - Caterpillar

Personal injury or death can result from machine articulation or movement.Machine frames can move and a person can be crushed.Connect the steering frame lock link between the front and rear frames before working on machine.
Sudden movement or accidental starting of the machine can cause personal injury or death to persons on or near the machine.To prevent personal injury or death, perform the following:Park the machine on a smooth, level surface.Lower the work tool to the ground and engage the parking brake.Stop the engine and remove the key.Block the wheels and install the steering frame lock.
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, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat products.Dispose of all fluids according to local regulations and mandates.
Table 1
Required Tools
Part Number Description Quantity
8T-9208 Probe Assembly 1
169-8373 Fluid Sampling Bottle 1 The standard hydraulic oil in this system is HYDO Advanced 10 wt. 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.
Install the steering frame lock in the LOCKED position.
Start the engine and run the engine at high idle. Allow the oil temperature to reach the normal operating temperature.
Operate the machine for a few minutes before you obtain the oil sample. Operating the machine will thoroughly mix the oil for a more accurate sample.
Lower the work tool to the ground.
Stop the engine.
Turn the key start switch to the ON position. Move all control levers and brake pedals through all positions in order to release any pressure in the hydraulic system.
Ensure that the control levers are in the HOLD position.
Illustration 1 g02760579
The P12 SOS port is located on the left rear of the machine, near the hydraulic fan.
Purge the fluid sampling valve. Insert 8T-9208 Probe Assembly into fluid sampling valve (2). Note: Use approximately 150 mm (6 inch) length of tube on the end of the probe. Drain approximately 100 mL (4 fl oz) of oil into a container for disposal. This drainage will clean out the fluid sampling valve so that a good oil sample may be obtained.Reference: Refer to Special Publication, PEHP6001, "How To Take A Good Oil Sample" for more information about obtaining an oil sample.
Start the engine and allow the engine to run at low idle. Note: Do not operate the hydraulic controls.
Draw a 50 mL oil sample through the fluid sampling port. The level of contaminants must be lower than the values in the following table.
Table 2
Hydraulic Oil Contamination
SAE J1165
ISO Code Particle Size (Microns) Maximum Number of Particles Per 1 mL Sample
18 5 2500
15 15 320 Note: The concentration of the particles by size should be monitored over a series of samples. This information can be