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