Engine Speed Control - Hitachi ZAXIS 120-6 class Operator's Manual

Engine Speed Control

Increase and decrease the engine speed using engine control
dial (1) located on the switch panel, as illustrated.
 Turn engine control dial (1) clockwise to increase the engine
speed. Turn engine control dial (1) counterclockwise to
decrease the engine speed.
 Note that the auto-idle function will be deactivated if
engine control dial (1) is operated while the engine is
running at the auto-idle setting.
 Before stopping the engine, always turn engine control dial
(1) counterclockwise to the stop (to the slow idle setting).
Run the engine five minutes to cool the engine. Then, turn
the key switch to OFF position to stop the engine.
f
NOTE:
 The engine speed will be kept to slow idle speed just after
the engine starts. When engine speed control indicator (7)
is displayed, slow idle speed will be maintained. When the
coolant temperature or hydraulic oil temperature is low, the
time will be longer. The engine speed will be kept to slow
idle speed even if engine control dial (1) is not set in the
slow idle position.
 The warm-up system automatically operates after keeping
slow idle speed, and the engine speed will temporarily
increase even if engine control dial (1) is set in the slow idle
position.
d
CAUTION: Do not attempt to operate the machine
when engine speed control indicator (7) is lit. The
engine speed may change after the slow idle period
and operation speed of the work device may suddenly
increase, which may cause a serious accident.
OPERATING THE MACHINE
5-4
Slow Idle
7
1
MDCD-01-026
Fast Idle
1
M1P1-01-068
MDC1-01-355