SHAFT 4N5623 - Caterpillar

Removal Procedure
Start By:
Release the system pressure.Note: Cleanliness is an important factor. Before the disassembly procedure, the exterior of the component should be thoroughly cleaned. This will help to prevent dirt from entering the internal mechanism.
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 Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Caterpillar products.Dispose of all fluids according to local regulations and mandates.
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 work tools have been lowered to the ground, and the 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, hoses, and tubes. This helps to prevent fluid loss and this helps to keep contaminants from entering the system.
Open the engine hood.
Drain the coolant to a level that is below the turbocharger. After installation of the turbocharger, fill the coolant back to the marked level.
Illustration 1 g01182708
Remove bolts (1) and step (2) .
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Loosen clamp (4) and disconnect hose (3) .
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Loosen clamps (5) and (7) and disconnect hose (6) .
Illustration 4 g01182711
Remove bolts (8) and disconnect tube assembly (9). Repeat for the bottom.
Disconnect hose assembly (10) .
Illustration 5 g01182712
Loosen clamp (11) and disconnect tube assembly (12) .
Illustration 6 g01182713
Attach a suitable lifting device to turbocharger (14). The weight of turbocharger (14) is approximately 34 kg (75 lb).
Remove bolts (13) and turbocharger (14) .Installation Procedure
Install turbocharger (14) in the reverse order of removal.