Commissioning
54
Carefully read the Assembly Instructions before starting any work!
This is especially valid for the chapter on General Safety Instructions
and the safety instructions in each of the chapters.
6.3 Commissioning Exhaust System
6.3.1 Measuring Exhaust Back Pressure
The exhaust back pressure must be measured
during commissioning.
The measuring point of the exhaust back pressure
(threads e.g. M14x1.5) must be selected in a
straight part of the exhaust pipe.
Measurements take directly downstream of the
turbocharger will have distorted results by approx.
20 mbar.
The static pressure is measured, i.e. the
measuring connection must be flush with the inner
pipe walls.
Measurement of the head pressure and
measurements taking in bends will created
incorrect results.
The engine is to be operated at full power and
rated speed during the measurement.
The simplest measuring instrument is a slack tube
pressure gauge filled with water
(1 hPa = 10 mm Ws)
Ø 3 mm
H
6.3.2 Measuring Exhaust Temperature
IMPORTANT!
The max. permissible exhaust temperatures are specified in the installation instructions.
Excessive exhaust temperatures lead to serious engine damage.
For this reason:
S Continuous monitoring of the exhaust back pressure is mandatory.
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