Hitachi Zaxis 250 - Front Switch Panel Functions

Operation—Operator’s Station
OUT1739,00001DA –19–16APR07–1/1
Front Switch Panel Functions
1. Engine RPM Dial: Turn dial clockwise to increase
engine speed or counterclockwise to decrease engine
speed.
2. Auto-Idle/Auto-Acceleration Switch: With engine
on, move auto-idle/auto-acceleration switch to A/I.
Auto-idle indicator will light when auto-idle is on.
The engine will run at the engine rpm dial setting for 4
seconds after turning key switch ON. The auto-idle
system will then slow the engine to auto-idle engine
speed.
The auto-idle circuit automatically reduces engine
speed after 4 seconds when control levers are placed
in neutral position.
Engine speed increases to engine rpm dial setting
when any control lever is operated.
With engine on, move auto-idle/auto-acceleration
switch to AA. Auto-acceleration indicator will light.
Engine rpm will change depending on rpm dial setting
and position of control levers. Typically used for
grading operations.
Turn auto-idle/auto-acceleration switch OFF and set
engine rpm dial to improve machine control in difficult
work areas, loading and unloading.
3. Power Mode Switch: Move switch to select engine
speed mode.
H/P (High Power) Mode
Use H/P mode when extra horse power is needed for
rolling in the arm in excavation work.
P Mode
Use P mode when general digging work is needed.
E (Economy) Mode
Use E mode to improve fuel efficiency and reduce
noise level with a small difference in engine speed.
4. Travel Speed Switch: Turn switch to select fast or
slow speed travel.
5. Operating Lights Switch: Turn switch to first
position to turn on drive lights. Monitor panel will also
light.
Turn light switch to second position to turn on boom
lights, cab lights, and drive lights. Monitor panel lights
will go off.
6. Wiper Switch: Wiper switch has several positions:
OFF .....Wiper automatically stops operating and is
retracted.
INT ... Wiper operates intermittently at the interval
selected by the switch position.
ON ..... Wiper operates continuously
Washer Switch: Push and hold switch to squirt fluid
on windshield. Do not hold down switch for more than
20 seconds.
2-1-6 081407
PN=40