1-401-40
● The idle speed deviates from the specified value
● The idle up speed does not rise
● No NMR
● The engine does not respond to operation of the accelerator pedal
Check the injection pump
Check the injection pump
Check the injection pump
Check the injection pump
A defect in the mechanical system of the travel and load
handling control device.
Check the components of the travel and load handling
control device (refer to 1-38).
specified
speed
Hold pump lever completely closed with your
hand, then start the engine and check whether
the engine idles at the specified speed.
Not-specified speed
Adjust the idle set screw
A defect in the mechanical system of the travel and load
handling control device.
Check the components of the travel and load handling
control device (refer to 1-38).
There is no
catching
Move the pump lever with your hand to check
that there is no catching in the sliding
movement.
There is catching
Service the injection pump (apply grease, etc.)
A defect in the mechanical system of the travel and load
handling control device.
Check the components of the travel and load handling
control device (refer to 1-38).
There is NMR
Check that there is NMR when starting the
engine and turning the pump lever to the fully-
open position with your hand.
There is no NMR
Adjust the maximum set screw
A defect in the mechanical system of the travel and load
handling control device.
Check the components of the travel and load handling
control device (refer to 1-38).
Engine revs up
With the engine running, move the pump lever
with your hand and check the rev-up response.
Engine doesn't rev up
Service or replace the injection pump
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