Sending Units and Warning Switches
The LED alert display performs a five-second self-test of
the alarm indicators and audible alarm when the engine
IGNITION switch is on. When these indicators turn off
due to normal operation the warning switches are
With IGNITION SWITCH-ON and engine running
ensure that panel gauges operate properly. This
confirms the sending units are functional.
HORNS AND ALARMS
With IGNITION switch ON and blackout light switch
in either SERV DRIVE or STOP LIGHT positions,
press horn button. Horn should sound.
With transmission direction lever in R (reverse),
engine running and blackout light switch in either
SERV DRIVE or STOP LIGHT position, backup
alarm should sound.
Ensure cable and clamps are tight and not corroded,
and batteries are secure.
Check oil level in transmission. This should be done
with the oil temperature gauge reading between 180-
200 degrees F. Add oil if level is below FULL mark
HYDRAULIC FLUID COOLER
Inspect for leaks and dirt fouling the air path through
the oil cooler.
AIR RESERVOIR SERVICE
Check for moisture in air system by opening the
reservoirs drain cock or automatic drain valve. Use a
tool to drain the automatic drain valve. Move the wire
in the exhaust port up, holding it until draining is
complete. In areas where more than a 30 degree
temperature range is common, small amounts of
water can condense in air system. Small amounts of
water are normal and are not an indication that the
dryer is not working.
Automatic Drain Valve
Have Organizational Maintenance replace the
desiccant cartridge in the air dryer when it has been
determined that the desiccant is contaminated and
cannot absorb water.
Check air pressure in each tire. Pressure should be
The rim is made up of three pieces with
a locking ring. If not properly seated, the
locking ring and rim parts can fly apart
with lethal force. Always use a tire
inflation cage and clip on inflator. Failure
to follow this procedure could result in