Navistar WorkStar Series, Operator'S Manual

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Operation
1. Air Pressure Regulator – Axle 1
2. Air Pressure Regulator – Axle 2
3. Air Pressure Regulator – Axle 3
1. Axle 1
2. Axle 2
3. Axle 3
Lift Axle System Operation
WARNING
To prevent the unintentional lowering of a lift
axle(s), set all UP/DOWN switches to the UP
position before turning system on.
Be aware,
lift axle(s) will automatically rise to the UP
position when the key is turned off. Ensure lift
axle(s) are clear of people, animals and objects
before turning system on, or turning ignition off.
Failure to follow this warning may cause property
damage, personal injury, or death.
Enabling the Lift Axle System
NOTE: Before pressing the AXLE ENABLE switch, ensure that
all UP/DOWN switches are in the UP position.
The ignition switch must be in the “Run” or “On” position in
order to enable the lift axle system.
After this is done, the
lift axle system is enabled by momentarily pressing the AXLE
ENABLE switch. This will cause the indicator for this switch to
be illuminated. The Axle Enable switch need only to be pressed
once after ignition on operation. If the lift axle(s) will not be
used, there will be no need to press the AXLE ENABLE switch.
The only way to disable the system is to turn the ignition switch
to the “off” position. When the ignition switch is turned to the
“Off” position, the axle(s) will go to the “up” position, regardless
of the position of any Lift Axle switches.
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