Turbocharger System; Boost Compensator - Kubota KX080-3 Workshop Manual

WSM KX080-3 Service

6. TURBOCHARGER SYSTEM

[1] BOOST COMPENSATOR

The boost compensator is controlled by the boost
pressure of the control mechanism which controls
transient smoke caused by oversupply of fuel when the
engine starts and accelerates.
When the boost pressure is lower than working
pressure of the boost actuator (1), it prevents oversupply
of fuel to reduce transient smoke.
When the boost pressure is higher than working
pressure of the boost actuator (1), it controls the supply
of fuel to the equivalent of maximum power / rated speed
output.
The boost compensator adjusting screws (2) are set
and tamper-proof capped in factory, so never take off
the tamper-proof cap and readjust the screws.
(1) Boost Actuator
III-S-85
Engine
(2) Boost Compensator Adjusting
Screw
W1014569