PISTON 2083889 - Caterpillar

Personal injury can result from hydraulic oil pressure and hot oil.Hydraulic oil pressure can remain in the hydraulic system after the engine has been stopped. Serious injury can be caused if this pressure is not released before any service is done on the hydraulic system.Make sure all of the attachments have been lowered, oil is cool before removing any components or lines. Remove the oil filler cap only when the engine is stopped, and the filler cap is cool enough to touch with your bare hand.
Note: Put identification marks on all lines, on all hoses, on all wires and on all tubes for installation purposes. Plug all lines, all hoses and all tubes. This helps to prevent fluid loss and this helps to keep contaminants from entering the system.Note: Cleanliness is an important factor. Before the removal procedure, the exterior of the component should be thoroughly cleaned. This will help to prevent dirt from entering the internal mechanism.
Open the engine hood.
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Remove four bolts (1), the washers, and ladder assembly (2) .
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Typical Example
Attach a suitable hoist and lifting slings to the guard rail, as shown.
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Disconnect two electrical connectors (3) and two hoses (4) from the windshield washer pumps.
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Remove bolt (5), the washer, and the clip. Place the electrical harness aside.
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Remove two bolts (6) and the washers from the top of the hydraulic tank.
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Remove two bolts (7), four bolts (8) and four bolts (9) .
Use the hoist in order to remove fender assembly (10). The weight of the fender assembly is 86 kg (190 lb).
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Disconnect hydraulic hose assemblies (11) .Note: Machines with Conventional Steering refer to Steps 10 and 11. Machines with Command Control steering refer to Step 12.
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Machine with Conventional Steering
Disconnect three hydraulic hose assemblies (12) .
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Machine with Conventional Steering
Disconnect two hydraulic hose assemblies (13), tube assembly (14), and tee fitting (15) .
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Machine with Command Control Steering
Disconnect tee fittings (12), tube assembly (13), hydraulic hose assembly (14), and tube assembly (15) .
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Remove bolts (16) and the washers.
Use two persons in order to remove steering control valve (17). The weight of the steering control valve is 29 kg (65 lb).