4-21. EXHAUST SYSTEM - Continued
4-21.2 Exhaust Pipe Assembly
This task covers
Tool Kit, General Mechanic,
89528-K Clamp, Seal
Main Engine Shutdown (see para. 2-10)
APU Shutdown (see para. 2-12)
Batteries Disconnected (see para. 4-24)
89613-K Tube, Flexible
Pump Body and Hose Body Heat Shields Removed
101623 Elbow, Weldment
(see para. 4-11)
Muffler Removed (see para. 4-21.1)
Exhaust parts can be hot enough to cause severe burns. Allow exhaust system to cool before
Remove remote drain handle from turret pipe drain valve. Pull rod clear of underside of truck.
Remove seal clamp (3) from upper end of flex tube (4).
Remove clamp (1) and elbow weldment (2) from turbocharger.
Separate elbow weldment from flex tube.
Remove the remaining exhaust pipe by slipping it down through the frame.
Remove seal clamp (3) from lower end of flex tube and four flat-band clamps (7) between elbows and
tubes. Break or twist apart remaining exhaust pipe.
Inspect all parts for corrosion. Excessive corrosion resulting in holes or flaking is cause for rejection.
Replace any part falling inspection.
Install elbow weldment (2) on turbocharger with clamp (1) Do not tighten.
Fit together the flex tube (4), tube (6), three elbows (8, 9 and 10) and tube (11).