Hitachi Zaxis 200LC Operator's Manual page 179

Auto-Idle/Auto-Acceleration
Circuit Check
T137676 –UN–02FEB01
Pilot Shut-Off Valve
Checks
CAUTION:
Machine may
move during this
check. Make sure
area is clear, and
T7351CC –UN–22AUG90
large enough to
operate all
controls.
Pilot Shut-off Valve
Checks—(Continued)
T7351CB –UN–22AUG90
Miscellaneous—Operational Checkout
1—Auto-Idle/Auto-Acceleration Switch
min-1
Run engine at fast idle.
1
A/A Power mode switch in H/P mode.
A/I
OFF
Auto-idle/auto-acceleration switch OFF.
H/P
P
E
Pilot shut-off lever in UNLOCKED position.
Move auto-idle/auto-acceleration switch (1) to A/I.
Does auto-idle indicator come on?
Does engine speed decrease after 4 seconds?
Slowly actuate any dig function control lever.
Does engine speed return to fast idle?
Move auto-idle/auto-acceleration switch to A/A.
Do auto-idle and auto-acceleration indicators come on?
Does engine speed decrease after 4 seconds?
Slowly actuate any dig function control lever.
Does engine speed return to fast idle?
Run engine at slow idle.
Pilot shut-off lever in LOCKED (rearward) position.
Actuate all dig and travel function controls.
Do any dig or travel functions operate?
Move pilot shut-off lever to UNLOCKED position
(forward).
Operate all dig and travel functions.
Do all functions operate?
4-2-4
YES: Go to next check.
NO: Check fuse 1 in fuse
box, of ok, go to your
authorized dealer.
– – –1/1
YES: Go to your
authorized dealer.
NO: Continue check.
– – –1/1
YES: Go to next check.
NO: Go to your
authorized dealer.
– – –1/1
081407
PN=175