Operating Instructions
35
Hourmeter
The hourmeter, which is located on the instrument
panel, displays operating time accumulated while
the ignition switch is in the ON (RUN) position.
The hourmeter provides maintenance reminders af-
ter certain hours of operation. The hourmeter screen
will start ashing the reminder one hour prior to the
recommended interval and will continue until one
hour after the recommended interval (two hours).
The hourmeter does not have a manual reset
function.
Procedure Interval* Reminder
Oil Change
(Break-In)**
4-6 Hours
C
H
G
OIL
Lubricate
and Check
Levels
24-26 Hours
LUBE
Oil Change 49-51 Hours***
C
H
G
OIL
* These intervals reect the actual time that the
reminder will ash (one hour prior to and one
hour after the recommended interval).
** This reminder is only used one time.
*** In normal operating conditions, oil changes in
100-hour intervals are acceptable. Walker and
the engine manufacturers recommend engine
oil changes every 50 hours in extremely dirty or
dusty conditions or for units with less than 100
hours annual use.
NOTE: The blinking hour glass on the display
means that the meter is operating properly.
Hourmeter
Voltmeter
The voltmeter displays battery and charging system
voltage. An indication of low or high voltage (the red
area) indicates an electrical system failure. The
cause of the failure should be determined and cor-
rected.
Water Temperature Gauge
The water temperature gauge monitors engine
cooling system temperature. If engine coolant
temperature exceeds 230° F (110° C), an overheat
condition exists; the water temperature light will
come on and the warning horn will sound.
WARNING
If engine cooling system overheating is in-
dicated, continued operation of the engine,
even for a short time, COULD result in re,
risk of personal injury, and severe damage
to equipment.
Oil Pressure Warning Light/Horn
The oil pressure warning light and horn indicate that
engine oil pressure is below the safe operating level
[below 7 PSI (48 kPa)]. This light (and warning
horn) will come on when the ignition is turned ON,
but should go o after the engine is started. If the
light fails to come on when the ignition switch is
turned ON, it could indicate a burned out bulb. If the
light comes on during engine operation, stop the en-
gine immediately and correct the source of the prob-
lem before further engine operation.
IMPORTANT: Continued operation of the engine
with an illuminated oil pressure warning light MAY
cause severe engine damage (if a low oil pressure
condition exists).
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