Komatsu PC88MR-10 Shop Manual page 101

Function
(ENG95-A9H2-042-K-00-A)
A: Flow of exhaust gas
1. DOC unit
2. Silencer unit
The KDOC muffler is installed to meet the latest very severe emission regulations. It oxidizes SOF
(soluble organic fraction in minute particle in exhaust gas), HC (hydrocarbon not combusted), and CO
(carbon monoxide) contained in the engine exhaust gas to clean the exhaust gas. It also has a silencer to
reduce the exhaust noise.
Function of DOC unit
(1) Oxidization of SOF (soluble organic fraction)
(2) Oxidization of HC (hydrocarbon)
(3) Oxidization of CO (carbon monoxide)
Function of silencer unit
Reduction of exhaust noise
PC88MR-10
10 Structure and function
KDOC muffler
10-23