PINION (27 TEETH) 4D2227 - Caterpillar

Remove heat shield assemblies (39), (40), and (41) .
Illustration 13 g03827122
(42) 349-9673 Exhaust Diffuser Adapter Gp (43) 034-3412 Cable Strap (44) 7N-4080 Boot
Remove boot (44) by removing cable strap (43). Remove exhaust diffuser adapter group (42) from the turbocharger.
Illustration 14 g03827123
(7) 1W-5455 Clamp (21) 444-5130 Diffuser (38) 445-7910 Exhaust Lines Gp
Install exhaust lines group (38) that consists of clamp (7) and diffuser (21).
Position the diffuser with the outlet 0° to 5° from the engine vertical (straight down).
Position the clamp fastener pointing out or down.
Illustration 15 g03827126
(39) 380-6885 Heat Shield As (40) 380-6886 Heat Shield As (41) 380-6887 Heat Shield As
Install heat shield assemblies (39), (40), and (41) .
Illustration 16 g03827127
(12) 343-9010 Bellows As (14) 346-0334 Band Clamp (15) 346-0335 Band Clamp (20) 442-8720 Exhaust Tube As
Install flexible exhaust pipe group between the turbocharger and the aftertreatment package.
Ensure that the bellows alignment and protective package is on the bellows assemblies. Pre-assemble the slip joint loosely.
Assemble the joint at the turbocharger outlet and loosely tighten band clamp (14) .
Align and assemble exhaust tube assembly (20) at the aftertreatment inlet ball joint and loosely tighten band clamp (15) .Note: The slip joint should slide smoothly with a minimum engagement of 40 mm (1.6 inch). Engagement will be verified when ink line on the