Exhaust System: Description and Operation

Explanation of Functions and Operation

The exhaust brake adjusts exhaust pressure to serve as supplement brake, Quick Warm-up System (QWS) for engine, etc. The diesel particulate filter (DPF) assembly consists of a filter and oxidation catalyst, and serves to purify exhaust gas. The main components are front exhaust pipes A and B, exhaust brake assembly, DPF assembly, silencer, and exhaust cooler.


This illustration shows wheel base 2800 mm







Functional Check

- During check or repairs of the exhaust system, confirm that the clearance between the body and the floor is adequate.
- Take adequate care to prevent damage due to heating or vibrations in the body panel. It may lead exhaust gas to enter the cabin.
- Check for loose or damaged connectors and leakage of exhaust gas.
- Check for degradation, cracks or damage to the clamp or rubber.
- If the pipe or silencer is damaged or has a dent, repair or replace it.
- Check for dents, damage, holes or cracks due to corrosion, and abnormal noise during operation.