SEN00455-01 30 Testing and adjusting
4 114E-3 Series
Testing air boost pressure 1
a Testing tools for air boost pressure
k Be careful not to touch any hot part when
removing or installing the testing tools.
a The test point is subject to machine models.
1. Remove air boost pressure pickup plug (1)
between the turbocharger and aftercooler.
2. Install nipple [1] and hose [2] of boost gauge kit
A and connect it to gauge [3].
3. Run the engine at the rated output and test the
air boost pressure.
a When testing with the engine mounted on
the machine, test on the condition
described in the shop manual for the
machine.
a Connect INSITE (troubleshooting kit) to
the engine and measure air boost pres-
sure between the aftercooler and intake
manifold using the monitoring function.
4. After finishing testing, remove the measuring
tools and return the removed parts.
Symbol Part No. Part name
A 799-201-2202 Boost gauge kit
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