Komatsu PC130-8 Shop Manual page 253

10 Structure, function and maintenance standard
Function
q When all the control levers are set to NEU-
TRAL for waiting for a dump track or work, the
engine speed is automatically reduced to a
control speed, and fuel consumption and noise
are lowered.
q When any control lever is operated, the engine
speed returns immediately to the speed that is
set with the fuel control dial.
Operation
When control levers are set in neutral
q If all the control levers are set to NEUTRAL for
4 seconds or more with the engine speed
exceeding approx. 1,400 rpm, the engine
speed lowers down to the control speed
(approx. 1,400 rpm) and is held until the con-
trol lever is operated again.
When any control lever is operated
With the engine speed at the control speed
q
(approx. 1,400 rpm), when any control lever is
operated, the engine speed increases immedi-
ately to the speed that is set with the fuel con-
trol dial.
A : All work equipment
"NATURAL"
B : All work equipment
"OPERATED"
C: Fuel control dial set speed
D: Engine control speed (approx. 1,400 rpm)
E : 4 sec.
F : Max. 2 sec.
G: Max. 0.2 sec.
PC130-8
control levers in
control levers
SEN03778-03
13