COUPLING AS 3201751 - Caterpillar

Removal Procedure
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
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.Dispose of all fluids according to local regulations and mandates.
Illustration 1 g02526997
Loosen the hose clamp and disconnect hose assembly from air outlet (4) from turbocharger (3).
Slide hose clamp along hose assembly (5). Disconnect hose assembly (5) from the wastegate actuator.
Loosen the allen head bolt on V-band clamp (2) and loosen the allen head bolt on V-band clamp (9) from elbow (1). Remove the V-band clamps from the elbow. Note: If the V-band clamps remain tight on the flanges, apply releasing fluid on the V-band clamps in order to assist removal. Lightly tap the allen head bolts on the V-band clamps with a soft faced hammer in order to assist removal. Do not use a prybar in order to remove V-band clamps.
Remove elbow (1) from turbocharger (3) and turbocharger (10).
Loosen allen head bolt on V-band clamp (6) on air duct (7) and loosen hose clamps (11). Note: If the V-band clamp remains tight on the flange, apply releasing fluid on the V-band clamps in order to assist removal. Lightly tap the allen head bolts on the V-band clamps with a soft faced hammer in order to assist removal. Do not use a prybar in order to remove V-band clamps.
Remove hose assembly (8) and air duct (7) from the outlet of turbocharger (10) and turbocharger (3).
Illustration 2 g03734673
Remove banjo bolt (13) from hose assembly (14).
Remove sealing washers (12) (not shown).
Disconnect hose assembly (14) from the connection on turbocharger (10). Plug and cap the turbocharger. Plug and cap the hose assembly.
Remove hose assembly (14).
Remove bolt (18) from the clip for tube assembly (17).
Remove bolts (16) and bolts (20) from tube assembly (17).
Remove tube assembly (17) from turbocharger (3) and the cylinder block.
Remove gasket (15) (not shown) and gasket (19) (not shown) from tube assembly (17). Note: Plug the oil drain tube assembly for the turbocharger. Plug the port on the turbocharger and the cylinder block.
Illustration 3 g02526999
Remove nuts (21) and nuts (25) from turbocharger (3). Note: Ensure that the weight of the turbocharger is supported as the nuts are loosened.
Remove turbocharger (3) from exhaust manifold (23).
Remove gasket (26) (not shown).
If necessary, remove studs (22) (not shown) from turbocharger (3).
If necessary, remove studs (24) from exhaust manifold (23).