Testing Air Boost Pressure - Komatsu 114E-3 Series Shop Manual

SEN00455-01

Testing air boost pressure

a Testing tools for air boost pressure
Symbol Part No.
A 799-201-2202 Boost gauge kit
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].
4
1
Part name
3. Run the engine at the rated output and test the
air boost pressure.
a When testing with the engine mounted on
t h e m a c h i n e , t e s t o n t h e c o n d i t i o n
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.
30 Testing and adjusting
114E-3 Series