Chapter 7 – Prestart Inspection
A46JRT – 0260996 31
The aerial platform may have air or foam filled tires. Differ-
ent types of tires have different inspection requirements.
Air Filled
Air filled tires have a tire pressure decal near the valve
stem. The valve stem also has a valve core like an au-
tomobile tire.
Danger
The aerial platform can tip over if it becomes unsta-
ble. Death or serious injury will result from a tip-over
accident. Do not operate the aerial platform if a tire
is leaking air or is in poor condition where a blow
out could occur.
To inspect air filled tires and wheels:
1. Check the wheel lug nuts to see that none are miss-
ing, damaged, or loose.
2. Carefully inspect the tires for wear, cuts, punctures,
or imbedded objects.
3. Test the air pressure with a pressure gauge to make
sure the tires are properly inflated. Check the tires
several times throughout the day to see that they are
properly inflated.
Foam Filled
Foam filled tires do not have a pressure decal or a valve
core.
To inspect foam filled tires and wheels:
1. Check the wheel lug nuts to see that none are miss-
ing, damaged, or loose.
2. Carefully inspect for large holes or cuts where foam
is coming out of the tire.
3. Look for large imbedded objects, such as angle iron,
that can rip a tire open.
Note
Punctures caused by bolts, screws, or nails are not a
problem for foam filled tires.
Lower Control Station
With no personnel in the platform, test the operation of
each control from the lower controls (refer to Figure 7.10).
Figure 7.10 – Lower Controls
Operating Controls
Use the following procedure to operate the machine from
the lower controls.
1. Turn the battery disconnect switch on.
2. Pull the emergency stop button outward. Place the
controls selector switch in the lower control position.
The engine starts to preheat when the switch is
placed in the lower control position.
3. Press and hold the start button until the engine starts,
then release.
4. Let the engine warm to operating temperature.
5. Hold the ground operation switch upward.
Danger
Pinch points may exist between moving components.
Death or serious injury will result from becoming
trapped between components, buildings, structures,
or other obstacles. Make sure all personnel stand
clear of the aerial platform while performing the pre-
start inspection.
Warning
The potential for an accident increases when operat-
ing an aerial platform that is damaged or malfunction-
ing. Death or serious injury could result from such
Emergency
Stop Button
Ground
Operation
Switch
Engine/Emergency
Power Switch
Diagnostic Center
LCD Display
Controls Selector Switch
Start Button
Platform Overload/Tilt
Warning Light
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